Cladding Remediation Contractor Insurance UK 2026
Why does a cladding remediation contractor need specialist insurance?
The programme is large, funded and now time-limited. At the end of June 2026 the government's remediation data recorded 4,469 residential buildings of 11 metres and above identified with unsafe cladding: 1,681 (38%) remediated, 698 (16%) started and 2,090 (47%) not yet begun. The Building Safety Fund covered 640 buildings (75% complete), the Cladding Safety Scheme 1,395 eligible buildings (9% complete), developer-led remediation 2,614 buildings identified (23% complete) and social landlords 556 self-funded buildings (60% complete). The Remediation Acceleration Plan, updated in July 2025, set the deadlines: buildings over 18 metres must be remediated by the end of 2029 or landlords face criminal prosecution with unlimited fines; buildings of 11–18 metres must be remediated or have a completion date by the end of 2029 or be escalated for enforcement. A Remediation Bill will create a legal duty to remediate, a Remediation Backstop under which local authorities and Homes England can do the works and recover the cost, and a Remediation Enforcement Unit inside the Building Safety Regulator. The Building Safety Levy applies from 1 October 2026. More than two thousand buildings' worth of external wall work must be procured, insured and completed inside three years.
The supply side of insurance has not expanded to match. Package and scheme contractors' markets decline cladding work by rule or leave the external wall exclusion in place; the design-and-construct PI market carries cladding and combustible-material exclusions on most wordings; and contract works insurers price a stripped façade on an occupied fourteen-storey block as the fire exposure it is. The specialist markets that remain write on certification, product traceability, fire management during the works, contract discipline and — above all — the records that will sit in the golden thread for as long as the building stands.
This guide sets out the external wall exclusion and what removes it, the five-policy programme and what each must say, the works-period fire risk, when the contractor becomes the designer, how the funding routes shape warranties, what the deadlines and the Remediation Bill mean, what the contractor is liable for under regulation 7, the Building Safety Act and PAS 9980, the limitation period and run-off, the contract terms that matter, and how a remediation contractor is placed. It completes our Building Safety Act cluster alongside the passive fire protection contractor, fire door installer and fire risk assessor PI guides, sits opposite our cladding and EWS1 buildings insurance guide for the building-owner side, and connects to our contractors combined insurance page, where most of these enquiries begin.
Key facts at a glance
- The external wall exclusion removes the whole business. Standard contractors' liability and construction PI exclude claims arising from external wall systems, cladding, insulation, attachments and their assessment. Deletion for named, certified activities is the placement.
- 4,469 buildings of 11m+ identified with unsafe cladding by June 2026 — 47% not yet started. Deadline: end of 2029 for 18m+ (criminal prosecution of landlords who fail), remediated or dated by end of 2029 for 11–18m.
- The works period is the peak fire risk. A stripped façade exposes combustible insulation on an occupied building under scaffold and sheeting, with hot works, temporary power and residents in situ. Contract works, fire management plans and the hot-work warranty decide whether the works-period fire is insured.
- Every remediation contractor designs. Selecting the replacement system, positioning cavity barriers, detailing around openings and confirming reg 7 compliance are design acts. Design-and-construct PI with the cladding exclusion deleted is the only cover.
- Funders require warranties the policies exclude. BSF, CSS and developer remediation contract warranties commonly carry fitness-for-purpose language and multiple beneficiaries; the contractual-liability exclusion on both liability and PI wordings leaves the excess promise with the business.
- Liability runs fifteen years forward and thirty back. Section 135 of the Building Safety Act 2022; every remediation contract is dwelling work; sections 130–132 building liability orders reach associated companies.
- PAS 9980 is the yardstick. The post-completion fire risk appraisal of external walls, by an assessor the Remediation Acceleration Plan now specifies, is the document that says whether the contractor's wall is tolerable — and the document a claimant will plead.
How does The Insurability Framework™ apply to cladding remediation contractors?
Placing a cladding remediation contractor in a market that has spent eight years excluding external walls is exactly what the Insurability Framework was built for.
The Insurability Framework — applied to cladding remediation contractors
Four pillars, one method: separate the wall you can evidence from the wall that burned, and price the evidence.
Underwriter Intelligence
External wall underwriters ask six questions: what systems does the contractor install and is each one supported by BS 8414 / BR 135 or A2-s1,d0 classification evidence; who designs the replacement wall and where does the contractor's design responsibility stop; how is fire managed on an occupied building with the façade open — hot-work permits, sheeting classification, waking watch, temporary detection; are installers certified for the cavity barrier and fire-stopping elements; what warranties has the contractor given and to whom; and what is recorded, photographed and handed over for the golden thread. We answer all six in the submission, so the contractor is priced on its process rather than on the sector's history.
Difficult Risk Expertise
Package and scheme contractors' markets decline external wall work or leave the exclusion in place; most construction PI wordings retain the cladding exclusion. A small number of Lloyd's syndicates and specialist MGAs with façade appetite delete the exclusions for named systems and activities, write design-and-construct PI with the cladding exclusion removed, place contract works for stripped façades on occupied blocks, and offer run-off that can actually be bought.
Risk Assessment
We find what the proposal form misses: the design liability nobody insured because "the fire engineer signed it off"; the cavity barrier and fire-stopping work done under a policy that deletes the external wall exclusion but not the efficacy exclusion; the funder warranty with fitness-for-purpose language; the subcontracted installers without their own certificates; the residents' contents and the neighbouring property in a works-period fire; the interim measures the contractor agreed to maintain; and the fifteen-year tail on every block.
Claims Advocacy
A claim against a remediation contractor arrives with a post-completion PAS 9980 appraisal, a funder's notice, a developer's pass-down, leaseholder claims and a Building Safety Regulator enquiry, often at once. We coordinate the liability adjuster, the PI panel, the contract works insurer and the legal expenses solicitor so the contractor speaks with one voice — and has a broker who has read a BS 8414 test report, not a helpline.
What is the external wall exclusion — and why does it sit on every policy a remediation contractor holds?
| Loss event | Standard contractors' liability with external wall exclusion | Specialist liability with exclusion deleted | D&C PI with cladding exclusion retained | Specialist D&C PI with exclusion deleted |
|---|---|---|---|---|
| Panel dropped from scaffold; damages a resident's car | Covered — ordinary third-party damage | Covered | No | No |
| Fire during works spreads through exposed insulation into flats | Excluded — arises from external wall system works | Covered, subject to hot-work and fire-management warranties | No | No |
| Replacement system installed; post-completion PAS 9980 finds cavity barriers mis-positioned; remediation required | Excluded — external wall; also efficacy; also own work | Excluded as own work; third-party consequences may be covered | Excluded | Covered if positioning was the contractor's design decision |
| Contractor specified an insulation product later found non-compliant with reg 7(2); replacement ordered | Excluded | Excluded as own work | Excluded | Covered — specification is design |
| Fire years after completion spreads via new wall; leaseholders and building insurer claim | Excluded | Covered — occurrence basis, policy in force at the fire | Excluded | Covered — claims-made, run-off required |
| Funder's warranty claim for delay after BSR rejects the Gateway 3 application | Excluded — pure economic loss | Excluded — pure economic loss | Excluded | Partly — where delay flows from an insured design breach |
| Removed ACM panels stored on site catch fire; neighbouring property damaged | Excluded — arises from cladding works | Covered | No | No |
| Operative falls from mast climber | Employers' liability — covered | Covered | No | No |
Two points follow. The first is that deletion must be on both policies: a liability policy with the exclusion removed and a PI policy with it retained leaves the contractor insured for the fire and uninsured for the reason the fire spread. The second is that deletion is written to named activities and, increasingly, to named systems: "removal and replacement of external wall systems with [manufacturer] rainscreen and A1/A2 insulation, including cavity barriers to FIRAS scope". A contractor that installs a system outside the named list, or takes on a building above the declared height, has stepped outside the deletion. Our contractors combined insurance guide covers the general policy; this article covers what the external wall adds to it.
Which policies does a cladding remediation contractor actually need — and what must each one say?
| Policy | What it does for a remediation contractor | Typical limit | Non-negotiable terms |
|---|---|---|---|
| Public & products liability | Injury and third-party damage from the works and the installed wall, including fire during and after the works | £10m; funders and principal contractors require it on 18m+ buildings | External wall, cladding, combustible-material and efficacy exclusions deleted for named activities and systems; height limit above the tallest building; indemnity to principal; cross-liability |
| Employers' liability | Injury to employees and labour-only operatives — mast climbers, scaffolds, cradles, hot works, cutting composite panels | £10m statutory | Height declared; bona fide subcontractors' own EL evidenced; asbestos and silica controls where present |
| Design-and-construct PI | Design, specification, survey and advice — system selection, cavity barrier positioning, reg 7 compliance confirmation, detailing around openings and balconies | £5m–£10m; matched to funder warranty requirements | Cladding and combustible-material exclusions deleted; fire safety exclusion deleted; retroactive date to first remediation contract; run-off provision |
| Contract works | The works in progress, the stripped façade, materials on site and in storage, temporary works, and the works-period fire | Full contract value plus a percentage for existing structure where required | Occupied-building endorsement; fire management plan warranty; hot-work permit warranty; removed combustible materials in storage covered; existing-structure cover where the contract requires it |
| Legal expenses | Regulatory prosecution defence (CDM, work at height), contract disputes with funders and principal contractors, employment | £100,000–£250,000 | Regulatory scope; contract-dispute section |
| Directors' & officers' | Building Safety Regulator enquiries, building liability orders, section 37 HSWA and section 40 CPA prosecutions of individuals | £1m–£2m | Regulatory-investigation cover; no building safety exclusion |
The policy most often missing is contract works with the right endorsements. A general contract works policy insures the works against fire; it does not necessarily insure them on an occupied building, does not necessarily cover the existing structure the contractor is required to insure under the contract, and carries a hot-work warranty the contractor must actually meet. On a remediation contract the existing structure is the building, the residents are in it, and the works are the removal of its fire protection. Our complex construction risks guide covers the contract works market for occupied and high-value existing structures.
Why is the works period itself the biggest fire risk the building will ever face?
| Works-period risk | Why it matters | Control the insurer expects | Policy consequence if absent |
|---|---|---|---|
| Exposed combustible insulation during strip-out | The most flammable state the wall will ever be in; ignition spreads floor to floor in the open cavity | Phased strip-and-replace limiting exposed area; temporary fire-resistant covering; fire watch | Contract works and liability insurers may decline the risk or impose a maximum exposed area |
| Scaffold sheeting and debris netting | Sheeting has fuelled major scaffold fires; the Grenfell-era wraps were themselves combustible | Flame-retardant sheeting to LPS 1215 or equivalent; certificates on file | Warranty breach — claim declined |
| Hot works — cutting, grinding, welding fixings | The most common cause of construction fires | Hot-work permit system; fire watch for one hour after; extinguishers at the work face; no hot works on exposed insulation | Hot-work warranty is a condition precedent on almost every wording |
| Stored removed panels and waste | ACM and HPL waste is combustible; stockpiles near the building are an ignition and spread risk | Removal from site daily or storage at a distance in enclosed skips; waste duty of care records | Damage from stored waste may fall outside contract works and inside excluded external wall works |
| Residents in occupation | Evacuation strategy may be compromised; residents' contents, injury and decant costs are third-party exposures | Interim fire measures agreed with the fire risk assessor and fire service; waking watch or temporary detection; resident communication | Liability insurer expects the interim measures to be documented and maintained |
| Temporary power and lighting | Common ignition source on scaffolds | Inspected installations; no domestic extension leads; isolation at end of shift | Contributes to declined claims where the cause is uncontrolled temporary electrics |
| Compartmentation breached during works | New penetrations, removed cavity barriers, open service routes | Temporary fire-stopping; daily close-out; competent person sign-off | Efficacy and external wall exclusions both engaged unless deleted |
The fire management plan is the document the contract works and liability underwriters read first, and the one most contractors have never been asked for by a broker. It should set out the phasing, the exposed-area limit, the sheeting specification, the hot-work regime, the waste handling, the interim measures agreed with the responsible person and the fire service, and the named person responsible on each shift. A contractor that can produce it before the first block is priced on it; a contractor that cannot is priced on the sector's fires. Our scaffolding insurance guide covers the scaffold contractor's side of the same exposure.
When does a remediation contractor become the designer of the new wall — and why does that need PI?
Three activities make the design liability unavoidable. The first is system substitution: the specified system is unavailable, over budget or unsuitable for the substrate, and the contractor proposes an alternative — which becomes the contractor's design whatever the architect later approves. The second is the as-found building: the survey underestimated the number of penetrations, the substrate is not what the drawings assumed, the balconies were not in the model; the contractor details the difference on site. The third is the compliance confirmation: the funder and the Building Safety Regulator want a statement that the replacement wall complies with regulation 7(2) and Approved Document B, and the contractor's completion documentation says so. Each is a professional opinion with a remediation bill behind it.
The insurance consequence is that the design-and-construct PI market's exclusions apply in full. Most construction PI wordings carry cladding, combustible-material and fire safety exclusions; a remediation contractor's PI is meaningless with them in place. Specialist markets delete them for declared activities on the strength of the design boundary being written down — a design responsibility matrix agreed with the employer's designers — and of the contractor's product evidence and certification. The CDM Regulations 2015, regulation 9 make any contractor who makes design decisions a designer with the duties that follow; the PI policy is what stands behind them. Our Principal Designer PI guide covers the dutyholder regime this design liability feeds into.
Which cover does each type of cladding remediation business need?
Cladding Remediation Cover Checker
Select the type of business to see the insurance programme and the exclusions to negotiate
Principal contractor delivering full remediation packages
- LEGAL Employers' Liability £10m
- ESSENTIAL Public & Products Liability £10m with external wall, cladding, combustible-material and efficacy exclusions deleted for named systems and activities; height limit above the tallest building
- ESSENTIAL Design-and-construct PI £5m–£10m with cladding and fire safety exclusions deleted; design responsibility matrix agreed; limit matched to funder warranties
- ESSENTIAL Contract works with occupied-building endorsement, existing-structure cover where required, fire management plan and hot-work warranties met
- ESSENTIAL Subcontractor certification and insurance evidenced — FIRAS/IFC for cavity barriers and fire-stopping; system installers manufacturer-approved
- ESSENTIAL D&O with regulatory-investigation cover; Legal Expenses
- RECOMMENDED Run-off funded fifteen years and recorded in the succession plan
Façade and rainscreen subcontractor
- CRITICAL The principal contractor's insurance clause will require what the package policy excludes — read it before signing
- LEGAL Employers' Liability £10m — mast climbers and cradles declared
- ESSENTIAL Public & Products Liability £10m, external wall and efficacy exclusions deleted for the systems installed; indemnity to principal
- ESSENTIAL Contractors' PI £2m–£5m for installation design, bracketry and fixings calculations, detailing — cladding exclusion deleted
- ESSENTIAL Product evidence: BS 8414 / BR 135 or A2-s1,d0 classification for every system and component; installation to the tested build-up
- ESSENTIAL Golden thread records per elevation: photographs, product batches, cavity barrier positions
- RECOMMENDED Legal Expenses; contract works for own materials and plant
Strip-out and removal contractor
- CRITICAL Removal exposes the combustible layer on an occupied building — the works-period fire is this contractor's exposure, and the external wall exclusion catches "removal" as much as "installation"
- LEGAL Employers' Liability £10m — height, cutting composite panels, dust
- ESSENTIAL Public & Products Liability £5m–£10m with the external wall exclusion deleted for removal activities; hot-work warranty achievable
- ESSENTIAL Waste duty of care under section 34 EPA 1990 — removed ACM/HPL is controlled waste; carrier registration and transfer notes; see our skip hire and waste carrier guide
- ESSENTIAL Fire management plan for phased exposure; temporary covering; daily waste removal
- RECOMMENDED Legal Expenses; environmental liability where insulation contains hazardous substances; see our demolition contractor guide
External wall insulation and render contractor
- CRITICAL EWI systems are external wall systems — the exclusion applies whether the finish is rainscreen or render, and reg 7(2) governs the insulation on relevant buildings
- LEGAL Employers' Liability £10m
- ESSENTIAL Public & Products Liability £5m–£10m with external wall and combustible-material exclusions deleted for named EWI systems; mineral wool and A1/A2 systems evidenced
- ESSENTIAL Contractors' PI £2m–£5m — system selection, cavity barrier and fire break positioning in EWI are design
- ESSENTIAL System certification (BBA or equivalent) and manufacturer approved-installer status; fire breaks at floor level and around openings installed to the certificate
- RECOMMENDED Legal Expenses; see our spray foam insulation guide for the property-side consequences of the wrong insulation
Developer's original subcontractor remediating its own earlier work
- CRITICAL The original installation is a known circumstance: notify it to the policy in force when the defect was identified, or the remediation contract's liabilities and the original liabilities may both be uninsured
- LEGAL Employers' Liability £10m
- ESSENTIAL Public & Products Liability £10m with exclusions deleted; prior-circumstances position on the original work mapped and agreed with the insurer
- ESSENTIAL Design-and-construct PI £5m with cladding exclusion deleted; the developer remediation contract pass-down reviewed for fitness-for-purpose and indemnity language
- ESSENTIAL Contribution and section 124 remediation contribution order exposure assessed; D&O in place
- ESSENTIAL Building liability order exposure understood — restructuring away from the original company does not work
- RECOMMENDED Legal Expenses; see our non-disclosure guide for what happens when the original work is not disclosed
Survey, design and remediation-management consultancy
- CRITICAL The PAS 9980 appraisal, the remediation design and the completion sign-off are each a professional opinion relied on by funders, leaseholders and the regulator — the whole business is PI, and the cladding exclusion must be deleted
- ESSENTIAL Professional Indemnity £5m–£10m with cladding, combustible-material and fire safety exclusions deleted; chartered fire engineer on every appraisal
- ESSENTIAL Reliance discipline: reports addressed to the instructing party; reliance letters only where insured and paid for
- ESSENTIAL Public Liability £2m–£5m for site presence; Employers' Liability £10m
- ESSENTIAL Terms of engagement with liability cap, net contribution and no warranty of the wall
- RECOMMENDED Legal Expenses; D&O; see our fire risk assessor PI guide for the FRAEW placement in detail
Are you ready to present a cladding remediation contractor to an underwriter?
Cladding Remediation Readiness Self-Check
Click each item you can evidence. Ten or more and the exclusion deletions are negotiable now; fewer than six and the business is not ready to go to market.
- System evidence library — BS 8414 / BR 135 test and classification reports or A2-s1,d0 / A1 classifications for every system, insulation, cavity barrier and component installed
- Installer certification — manufacturer approved-installer status for each system; FIRAS / IFC scope for cavity barriers and fire-stopping; operative competence records
- Fire management plan for the works period — phasing, exposed-area limit, sheeting specification, hot-work regime, waste handling, interim measures, named responsible person
- Design responsibility matrix agreed with the employer's designers — what the contractor designs, what it installs to others' design, and where substitutions go for approval
- Installation records per elevation — photographs at each stage, product batches, cavity barrier positions, close-out sign-offs
- Activities and systems schedule — removal, installation, EWI, render, rainscreen, cavity barriers, fire-stopping, balconies, survey, design — each with its systems and its share of turnover
- Contract profile — buildings by height and funding route; largest contract; occupied vs vacant; share as principal vs subcontractor
- Warranty and contract review — every collateral warranty and funder agreement reviewed for fitness-for-purpose, beneficiaries, caps and insurance clauses
- Health and safety system — CDM arrangements, work at height, mast climber and cradle competence, hot-work permits, SSIP accreditation, RIDDOR history
- Handover and golden thread pack — regulation 38 information, as-built records, product evidence and O&M contribution per building, retained fifteen years
- Continuous insurance history — liability, PI and contract works certificates back to the first remediation contract; retroactive date confirmed; no gaps
- Claims, circumstances and post-completion findings — five years, including every PAS 9980 appraisal that questioned the business's work, every fire on or after a contract and every funder notice, whether or not a claim followed
How hard will your business be to place?
Cladding Remediation Placement Assessor
Select the highest-consequence activity and the evidence available to see how the market will read the business
How do the funding routes — BSF, CSS, developer contracts, social landlords — shape the contractor's warranties and liability?
| Funding route | Scale (June 2026) | Who contracts with the contractor | Typical contractual shape | Insurance consequence |
|---|---|---|---|---|
| Building Safety Fund (18m+ non-ACM; ACM programme) | 640 buildings; 482 (75%) complete; 562 (88%) started or complete | Building owner or managing agent, funded by grant | JCT or bespoke contract with collateral warranties to the funder (Homes England / GLA), leaseholders' representative and successors; scheme standards incorporated | Funder warranties commonly carry fitness-for-purpose and multi-beneficiary language; PI limit matched to warranty requirement; contractual-liability exclusion engaged |
| Cladding Safety Scheme (11m+ outside London; 11–18m in London) | 1,395 eligible buildings; 119 (9%) complete; 381 (27%) started or complete | Building owner, funded by grant through Homes England | As above, with Homes England's grant conditions and monitoring; PAS 9980-led scope | The largest pipeline of not-yet-started work; framework insurance clauses increasingly specify external wall cover expressly |
| Developer-led remediation (developer remediation contract) | 2,614 buildings identified with defects; 596 (23%) complete; 1,264 (48%) started or complete | The developer, or its principal contractor, often re-engaging original trades | Developer's own terms passing its contract obligations down; indemnities; step-in; original subcontractors may be remediating their own work | Prior-circumstances exposure where the original work is the contractor's; pass-down indemnities uninsured beyond the policy; contribution and section 124 exposure |
| Social housing self-funded | 556 buildings; 336 (60%) complete; 418 (75%) started or complete | Registered providers through frameworks | Framework terms with insurance schedules, KPIs, resident liaison obligations and long defects periods | Framework insurance clauses must be matched before award; resident-liaison failures produce liability claims |
| Leaseholder-protected / landlord-funded (BSA Schedule 8) | Within the overall 4,469 | Landlord under the Building Safety Act leaseholder protections; remediation orders from the First-tier Tribunal | Landlord under statutory and Tribunal pressure; short programmes; contractors engaged at speed | Time pressure drives design-on-site and warranty acceptance; the deadline is the landlord's, the liability is the contractor's |
The contractor's position is the same across all five: it is asked to give a warranty that the wall is fit, to an audience of funders, leaseholders and successors, on a building it did not build, under a deadline set by someone else. The warranty language decides whether the insurance responds. "Reasonable skill and care" keeps the claim in negligence, where the PI policy pays; "fit for purpose" or "shall comply with the Building Regulations" makes the contractor a guarantor, which the contractual-liability exclusion on both liability and PI wordings leaves with the business. We review every remediation warranty before it is signed and negotiate skill-and-care language wherever the contractor has leverage. Our cladding and EWS1 buildings insurance guide covers the building owner's obligations under the same funding routes.
What do the Remediation Acceleration Plan deadlines and the Remediation Bill mean for contractors?
| Measure | What it does | Consequence for the contractor |
|---|---|---|
| End-2029 deadline — 18m+ buildings | Landlords who have not remediated by the end of 2029 without reasonable excuse face criminal prosecution with unlimited fines and/or imprisonment | Every 18m+ contract must complete by 2029; delay claims against the contractor acquire a criminal-exposure backdrop; landlords will accept any warranty that gets the works started |
| End-2029 deadline — 11–18m buildings | Buildings not remediated, or without a completion date, by the end of 2029 are escalated for investigation and enforcement | The 11–18m pipeline — the largest — is procured in the same window; more contracts, more warranties, more design-on-site |
| Legal duty to remediate (Remediation Bill) | A statutory duty on landlords to remediate unsafe buildings over 11m, and an offence of obstructing assessment or remediation | Contractors' work becomes the discharge of a statutory duty; its adequacy is a regulatory question as well as a contractual one |
| Remediation Backstop | Local authorities and Homes England may apply to the First-tier Tribunal to carry out works themselves and recover costs, with enforced sale where costs are unmet | Public bodies become clients; public procurement terms and insurance schedules apply; cost recovery drives claims down the chain where works fail |
| Remediation Enforcement Unit | A unit within the Building Safety Regulator to oversee enforcement for 18m+ buildings | The regulator that approves Gateway 3 also enforces remediation; the contractor's records are read by both functions |
| National Remediation System | Homes England database centralising data on 11m+ buildings | The contractor's work on each building is a data record for the life of the building |
| PAS 9980 assessor requirements | FRAEWs to follow PAS 9980 with specified assessor competence; updated guidance expected 2026 | The post-completion appraisal that judges the contractor's wall will be by a specified assessor against a specified method |
| Building Safety Levy from 1 October 2026 | Levy on new residential development to fund remediation | Funding for the programme's next phase; more CSS and backstop work |
The deadline changes the underwriting conversation in two ways. First, capacity: a contractor whose turnover doubles in 2027 on remediation work is a contractor whose supervision, records and subcontractor control are being stretched, and underwriters will ask how. Second, speed: contracts procured under deadline pressure carry more design-on-site, more substitutions and more accepted warranties than contracts procured with time, and each of those is an insurance exposure. A contractor that can show it grew its evidence and its controls with its order book will be priced on that; one that cannot will be priced on the sector's 2027 losses. Our claims history guide covers what those losses do to a renewal.
How do regulation 7, the Building Safety Act and PAS 9980 define what the contractor is liable for?
| Provision | What it requires | What it means for the contractor |
|---|---|---|
| Building Regulations 2010, reg 7(2) | Materials forming part of an external wall or specified attachment of a relevant building (18m+; hotels, hostels and boarding houses 11m+ since 2022 amendments) must achieve European class A2-s1,d0 or A1, subject to listed exemptions | Every product in the replacement wall must be classified; a contractor that substitutes a product outside the classification has installed an unlawful wall |
| Approved Document B, Diagram / BS 8414 / BR 135 | External walls to adequately resist fire spread; performance route via full-scale BS 8414 test and BR 135 classification for systems below the reg 7(2) threshold | System evidence must match the build-up as installed — substrate, insulation, cavity, barrier, cladding, fixings — or the classification does not apply |
| Building Regulations reg 38 | Fire safety information handed to the responsible person on completion | The contractor's as-built records, product evidence and cavity barrier positions are part of it |
| BSA 2022 Part 3 — higher-risk building gateways | Gateway 2 approval before work starts on an 18m+ residential building; Gateway 3 completion certificate before re-occupation of the affected part | Remediation on higher-risk buildings is building work under the BSR; rejected applications are delay claims passed down |
| BSA 2022 Part 4 — golden thread | Accountable persons to keep accurate building information throughout the building's life | The contractor's records are in the golden thread as long as the building stands |
| BSA 2022 s.135 — limitation | Defective Premises Act claims: 30 years retrospective, 15 years prospective from 28 June 2022; s.2A extends the DPA to refurbishment | Every remediation contract carries a fifteen-year tail; the original installers' liability for work since 1992 is live |
| BSA 2022 ss.130–132 — building liability orders | Liability for a building safety risk extended to associated companies | Group restructures and phoenixes do not shed the liability |
| BSA 2022 ss.123–125 — remediation orders and contribution orders | Tribunal orders landlords to remediate and developers and associates to contribute | Recovery claims flow down to the contractor whose work is a relevant defect — original or remedial |
| PAS 9980:2022 | Method for fire risk appraisal of external walls — construction, materials, cavity barriers, detailing, risk factors — producing a risk rating | The post-completion appraisal of the contractor's wall; a "high risk" rating is the claim |
The cumulative effect is that the contractor's liability is defined by documents it did not write, judged by an assessor it did not appoint, for a period longer than most contracting businesses exist, and unaffected by the corporate devices contractors once used to limit exposure. The insurance programme, with run-off, is the only transfer mechanism left. Our Principal Designer PI guide covers the gateway regime from the design side.
How long does a cladding remediation contractor stay liable — and what does run-off cost?
Remediation contractors have a particular exposure most trades do not: the post-completion appraisal. A PAS 9980 appraisal commissioned by a new freeholder, a lender or the Building Safety Regulator three, five or ten years after completion can rate the contractor's wall as requiring remediation — because of a product later reclassified, a detail the appraiser reads differently, or a defect the original appraisal did not find. The claim then arrives against a business that may have completed its last remediation contract years earlier. Liability run-off responds to a fire; only PI run-off responds to the appraisal.
Run-off is cheapest planned and dearest improvised. Specialist markets offer declining run-off to contractors they already insure with a clean record; a contractor that arrives at the end of the programme uninsured, after a gap or after a decline has few options and pays for them. We budget fifteen years of run-off for every remediation contractor from the first placement, record it in the business's succession plan, and treat any sale of the business as an insurance event — the buyer inherits the building liability order exposure whether or not it inherits the policy. Our guide to professional indemnity run-off cover sets out the mechanics.
Which contract terms move a remediation contractor's risk outside its insurance?
| Term | What it does | Insurance effect | What to negotiate |
|---|---|---|---|
| Fitness for purpose / compliance guarantee | "The works shall comply with the Building Regulations and be fit for their purpose" — an outcome obligation | Excluded by the contractual-liability exclusion on PI and liability; the guarantee sits with the business | Reasonable skill and care of a competent contractor experienced in external wall remediation; express exclusion of fitness-for-purpose |
| Uncapped indemnity | Indemnifies the employer, funder or developer against all losses without limit | Policy limit applies regardless; the excess is the business's | Cap at contract sum or insurance limit; carve out consequential loss |
| Insurance clause | Requires "public liability including external wall and cladding works" and "PI including cladding design" at stated limits | A non-matching policy is a breach from day one; the funder's own insurer looks to the contractor | Send to the broker before award; match the policy or amend the clause |
| Collateral warranties | Direct claims by funder, leaseholders' representative, successors, lenders, management company | Each beneficiary a claimant on the same limit; step-in and assignment multiply them | Limit beneficiaries and assignments; net contribution; skill and care only; match the warranty's duty to the contract's |
| Design responsibility | Passes design of the replacement wall, or "completion of design", to the contractor | Uninsured without D&C PI with the cladding exclusion deleted for the scope taken | Design responsibility matrix; contractor's design limited to installation design and named elements; substitutions subject to designer approval |
| Existing-structure insurance | Requires the contractor to insure the existing building in joint names during the works | General contract works cover does not; occupied 18m+ residential blocks are difficult to insure as existing structure | Employer retains existing-structure insurance with contractor noted; or specialist contract works with existing-structure section priced in |
| Liquidated damages | Fixed sums per week of delay, including delay from BSR Gateway 3 refusal, resident access refusal or discovered defects | Pure economic loss — outside liability cover; outside PI unless from an insured design breach | Cap LDs; exclude delay from others' defects, access refusal and regulator timescales |
| Interim measures obligation | Contractor to maintain waking watch, temporary detection or evacuation measures during the works | Failure is a liability exposure; the cost is the contractor's | Scope, duration and cost defined; responsible person retains its own duty |
| Retention and set-off | Employer withholds sums against alleged defects found by post-completion appraisal | Not insurable; a cash-flow risk that drives insolvency | Retention bond; defect-notification process; Legal Expenses contract-dispute section |
Underwriters read the contractor's most onerous current warranty as closely as its system evidence, because the warranty is the policy's exposure in miniature. A submission that includes the standard terms, the funder warranty and the insurance clause from the largest contract tells the underwriter the business knows where its risk sits — and lets the broker match the policy to what the contractor has actually promised. Our construction insurance claims examples guide shows what happens when the two do not match.
What does cladding remediation contractor insurance cost — and what drives the premium?
| Rating factor | Why it moves the premium | What reduces it |
|---|---|---|
| Systems installed and their evidence | Named A1/A2 systems with BS 8414 / BR 135 or classification evidence are writable; unevidenced or substituted systems are not | System evidence library; deletion written to named systems |
| Building heights and occupancy | 18m+ occupied residential is the peak of every rating table; vacant or non-residential rates lower | Contract profile with heights and occupancy; height limit set above the tallest building |
| Design scope | Design responsibility for the wall is priced far above installation to others' design | Design responsibility matrix; scope limited to installation design and named elements |
| Fire management during works | The works-period fire is the largest single loss the contract can produce | Fire management plan; flame-retardant sheeting certificates; hot-work permit system; phased exposure |
| Funding route and warranties | Fitness-for-purpose and multi-beneficiary warranties increase severity and the number of claimants | Warranties reviewed and negotiated; skill-and-care language; caps and net contribution |
| Own original work | Remediating the contractor's own earlier installation carries prior-circumstances and contribution exposure | Original work notified to the correct policy; position agreed with the insurer before the contract |
| Installer certification | FIRAS / IFC for cavity barriers and fire-stopping; manufacturer approval for systems | Certificates with scope matched; subcontractor certificates evidenced |
| Records and golden thread | Reduce severity — the defence in any appraisal-driven claim is the record | Per-elevation photographs, product batches, cavity barrier positions, handover packs |
| Growth rate | Turnover doubling on deadline-driven work signals stretched supervision | Supervision ratios, subcontractor control and record systems shown to scale with the order book |
| Claims, circumstances and appraisals | A works-period fire, a post-completion appraisal questioning the wall or a funder notice is rated whether or not a claim followed | Full disclosure with outcome; process change shown |
| Health and safety record | Height, mast climbers and hot works drive EL and PL frequency | SSIP; RIDDOR history; competence records |
| Continuity and retroactive date | Gaps leave installed walls and completion documents uninsured | Continuous cover; retroactive date to first remediation contract |
| Excess | Specialist markets trade a higher excess for a lower rate | Take a realistic excess the business can fund from cash |
What do real cladding remediation claims look like — and how should you manage one?
Case study 1 — The scaffold fire on the occupied twelve-storey block (composite, illustrative)
Situation: A remediation contractor with £6m turnover was stripping ACM panels and phenolic insulation from an occupied twelve-storey block under a Building Safety Fund contract. A subcontractor grinding through a steel bracket ignited debris netting on the scaffold; the fire spread up the netting and into the exposed insulation across two floors before the fire service contained it. Four flats were smoke-damaged, 38 residents were decanted for eleven weeks, and the scaffold and works on two elevations were destroyed. The building owner's insurer paid £1.9m for the building, contents and decant costs and pursued the contractor; the funder served notice under the contract. The contractor held contract works with an occupied-building endorsement, liability with the external wall exclusion deleted for removal and installation, and a hot-work permit system.
What we did: Notified contract works, liability and PI insurers on the day. The hot-work warranty was the first question: the permit had been issued, the fire watch was in place, but the netting was standard rather than flame-retardant, in breach of the fire management plan the contractor had given the insurer. We argued that the netting was the scaffold subcontractor's supply and outside the contractor's warranty; the insurer accepted the argument for the liability policy and reserved on contract works.
Outcome: Liability paid £1.2m of the building owner's subrogated claim after contribution from the scaffold contractor's insurer; contract works paid £410,000 for the destroyed works and scaffold after a negotiated reduction of £90,000 for the netting breach; defence and adjusting costs £140,000. The contract continued under a revised programme. Renewal: liability from £48,000 to £86,000 (+79%); contract works rate up 40%; a warranty that all sheeting and netting is certified flame-retardant and inspected weekly.
Lessons: The works-period fire is the contract's largest loss and the policy's most warranted risk. The fire management plan is a promise to the insurer; the subcontractor's netting was the gap in it.
Case study 2 — The post-completion appraisal and the cavity barriers (composite, illustrative)
Situation: A façade contractor with £3.4m turnover replaced the rainscreen on a nine-storey block under a Cladding Safety Scheme contract, taking design responsibility for "completion of the design" of the replacement system under the contract. The contractor's design detailed horizontal cavity barriers at each floor but omitted vertical barriers at the compartment lines between flats, relying on a reading of the manufacturer's tested build-up that did not include them. Three years later the freeholder's lender commissioned a PAS 9980 appraisal by a chartered fire engineer, which rated the wall "high risk" for the missing vertical barriers and recommended remediation at £680,000. The freeholder, the lender and 44 leaseholders claimed. The contractor's PI carried a cladding exclusion its previous broker had described as standard.
What we did: The contractor came to us after the claim. The PI insurer's coverage position was correct: the cladding exclusion had not been deleted and the design of the wall was excluded. We engaged coverage counsel; a contribution to defence costs was negotiated on an ex gratia basis. The substantive claim was uninsured. For the future we re-placed the business with a specialist market — D&C PI with the cladding exclusion deleted for named systems, a design responsibility matrix required on every contract, and the retroactive date set at inception with a known-circumstances exclusion for the block.
Outcome: Settled at £540,000 funded by the partners, a loan and a settlement with the manufacturer over the ambiguity in its tested build-up; £110,000 of the contractor's own defence costs. Re-placed at £31,000 PI against £9,800 expiring (+216%) and liability at £52,000 against £27,000, with the design scope limited to installation design going forward.
Lessons: "Completion of design" is design. A D&C PI policy with the cladding exclusion in place is not PI for a remediation contractor — and the appraisal that finds the fault may be commissioned by someone the contractor never met, years after the scaffold came down.
Case study 3 — The original subcontractor, the developer contract and the circumstance nobody notified (composite, illustrative)
Situation: A cladding subcontractor with £4.1m turnover had installed the original rainscreen on a fourteen-storey block in 2016. In 2024 the developer, having signed the developer remediation contract, engaged the same subcontractor to remediate the wall under a pass-down contract with an indemnity for "all losses arising from the original works or the remedial works". The subcontractor did not notify its 2024 liability or PI insurers of the original installation as a circumstance — it regarded the remediation as new work. The remediation was completed in 2025. In 2026 the developer, facing a section 124 remediation contribution order for a neighbouring block by the same subcontractor, claimed under the indemnity for its own costs on both blocks.
What we did: Notified all insurers. The liability insurer accepted the remediation works as declared activity but declined the original-installation element as a circumstance known before inception and not disclosed; the PI insurer took the same position on the original design. We established that the subcontractor's 2016–2017 policies, on an occurrence basis for liability, remained responsive to the original installation and traced the insurer; we notified the PI circumstance to the 2023 policy year, when the developer first raised the defect, on the basis of late notification, and negotiated a partial acceptance.
Outcome: The 2016 occurrence-based liability policy responded to the original installation's third-party consequences up to its £5m limit; the PI insurer for 2023 accepted 60% of the original-design element on a late-notification compromise; the developer's indemnity claim for pure economic loss beyond the policies — £310,000 — was borne by the subcontractor. The current policies were re-placed with the original work mapped and agreed, at a 95% loading on PI.
Lessons: A subcontractor remediating its own work is carrying two liabilities, and the older one is a circumstance the day the developer's letter arrives. Notify it then, to the policy then in force, or lose it. The developer's indemnity for "all losses" was never insurable; the pass-down should have been negotiated before it was signed.
How to manage a cladding remediation claim — the eight-step process
- Notify liability, PI and contract works insurers the day you learn of a fire, an appraisal or a funder's notice. A works-period fire, a post-completion PAS 9980 appraisal questioning the wall, a funder's or developer's notice, a leaseholder claim or a Building Safety Regulator enquiry is a circumstance under every policy. Notify each in writing through your broker; late notification is the most common reason claims are declined.
- Preserve the complete wall record. Lock the system evidence, design responsibility matrix, drawings, substitutions and approvals, per-elevation photographs, product batches, cavity barrier positions, fire management plan and permits, handover pack and correspondence. Do not amend, annotate or re-issue anything. The record is the defence or the admission.
- Do not attend site to inspect, open up or rectify without the insurers' agreement. An offer to remediate, an admission on site or an opening-up without the adjuster and the PI panel can prejudice cover and the defence. Provide factual documents through the insurers' panels; leave liability to them.
- Establish which policy responds to which part of the claim. Fire and third-party damage are liability and contract works; the design of the wall, the substitution and the completion documentation are PI; re-doing your own work is neither. Where you remediated your own original installation, map the original work to the policies then in force. Have the broker agree a split between insurers early.
- Identify every other party who may share responsibility. The fire engineer who set the strategy, the architect who detailed the wall, the manufacturer whose tested build-up was ambiguous, the scaffold and other subcontractors, the original installer, the appraiser and the building owner who altered the building may each bear a share. Give the panel solicitor the names and the record.
- Notify legal expenses and D&O if a regulator, the HSE or the fire service opens an enquiry. A Building Safety Regulator or Remediation Enforcement Unit enquiry, an HSE investigation under CDM or a fire and rescue service interview is a regulatory matter. Legal expenses cover or the D&O policy's regulatory-investigation section funds representation; instruct through the insurer.
- Notify every related circumstance to the expiring policies before renewal. Other buildings where the same system, detail, subcontractor or design decision was used, other contracts for the same funder or developer and any further correspondence belong to the policy in force when they were first known. List and notify them so the renewal policies' prior-circumstances exclusions do not leave them uninsured.
- Present the process change at renewal, not the excuse. Underwriters price recurrence. Show the fire management plan, the design responsibility matrix, the substitution procedure or the record system that changed as a result, with the date, and present the claim as closed with a lesson applied. Diary the claim for five years of disclosure and challenge the loading as clean years accumulate.
Glossary of cladding remediation and insurance terms
- A2-s1,d0 / A1
- European reaction-to-fire classifications under BS EN 13501-1 for materials of limited combustibility (A2-s1,d0) and non-combustible materials (A1). The classifications regulation 7(2) requires for materials in the external walls of relevant buildings.
- ACM / HPL
- Aluminium composite material and high-pressure laminate — the cladding panel types most associated with the post-Grenfell remediation programme. Removed panels are controlled waste and a fire load while stored on site.
- BS 8414 / BR 135
- The full-scale fire test for external wall systems (BS 8414) and the BRE classification criteria (BR 135) that together evidence a system's performance where the reg 7(2) ban does not apply. Valid only for the build-up as tested.
- Building liability order
- An order under sections 130–132 of the Building Safety Act 2022 by which the High Court makes a body corporate's liability for a building safety risk the liability of an associated company. Prevents restructuring or phoenixing from shedding the exposure.
- Building Safety Fund (BSF)
- The government fund for remediating unsafe non-ACM cladding on residential buildings over 18 metres (with the ACM programme alongside). 640 buildings; 75% complete at June 2026. Grant conditions require funder warranties from the contractor.
- Cladding Safety Scheme (CSS)
- The Homes England scheme funding remediation of unsafe cladding on residential buildings over 11 metres outside London and 11–18 metres in London. 1,395 eligible buildings; 9% complete at June 2026. The largest pipeline of not-yet-started work.
- Cavity barrier
- A barrier within the external wall cavity, at floor levels and around openings and compartment lines, closing the cavity against fire and smoke spread. Its positioning is design; its installation is fire-stopping; both engage the external wall and efficacy exclusions.
- Design responsibility matrix
- A document agreed between the employer's designers and the contractor allocating design responsibility for each element of the replacement wall. Defines the scope of the contractor's D&C PI and the boundary of its liability.
- Developer remediation contract
- The contract signed by major developers committing to remediate life-critical fire safety defects in residential buildings over 11 metres they developed. 2,614 buildings identified; 23% complete at June 2026. Passed down to contractors through the developer's own terms.
- External wall exclusion
- The clause on contractors' liability and construction PI wordings excluding claims arising from external wall systems, cladding, insulation, attachments and their assessment or remediation. Standard since 2018; must be deleted for named activities and systems before a remediation contractor is insured.
- FRAEW / PAS 9980
- Fire risk appraisal of external walls under PAS 9980:2022 — the method for assessing an existing external wall's fire risk and producing a rating. The document that judges the contractor's wall after completion.
- Golden thread
- The requirement under Part 4 of the Building Safety Act 2022 for accountable persons of higher-risk buildings to keep accurate, accessible building information throughout the building's life. The contractor's records form part of it.
- Regulation 7(2)
- The Building Regulations 2010 provision, in force since December 2018 and extended in 2022, banning combustible materials in the external walls and specified attachments of relevant buildings over 18 metres (and certain buildings over 11 metres), subject to listed exemptions.
- Remediation Acceleration Plan (RAP)
- The government's plan, published December 2024 and updated July 2025, setting end-2029 deadlines for remediation of 18m+ buildings (criminal sanctions on landlords) and 11–18m buildings (remediated or dated), with a Remediation Bill, a Remediation Backstop and a Remediation Enforcement Unit.
- Remediation contribution order
- An order of the First-tier Tribunal under section 124 of the Building Safety Act 2022 requiring a developer, landlord or associated person to contribute to the cost of remediating relevant defects. Drives recovery claims down the supply chain.
- Section 135 limitation
- The Building Safety Act 2022 provision extending Defective Premises Act 1972 claims to fifteen years prospectively and thirty years retrospectively from 28 June 2022. Every remediation contract is dwelling-related work.
- Works-period fire
- A fire during remediation, when the façade is stripped and combustible insulation exposed on an occupied building under scaffold and sheeting. The contract's peak fire exposure; insured under contract works and liability subject to fire management, hot-work and sheeting warranties.
Frequently asked questions
Public and products liability at £10m with the external wall, cladding, combustible-material and efficacy exclusions deleted for named activities and systems; employers' liability with height work declared; design-and-construct professional indemnity at £5m–£10m with the cladding exclusion deleted and matched to funder warranties; contract works covering the stripped façade and the works-period fire on an occupied building; legal expenses with regulatory scope; and directors' and officers' cover for Building Safety Regulator enquiries and building liability orders.
A clause on most contractors' liability and construction PI wordings since 2018 excluding claims arising from the design, supply, installation, assessment, remediation or removal of external wall systems, cladding, insulation and attachments. For a cladding remediation contractor it removes every activity the business performs. Specialist markets delete it for named systems, activities and heights on evidence; a policy with it in place is not a remediation contractor's policy.
Only if the external wall exclusion has been deleted on the liability policy, the contract works policy carries an occupied-building endorsement and covers the existing structure where the contract requires it, and the fire management, hot-work and flame-retardant sheeting warranties have been met. The works period — façade stripped, insulation exposed, residents in situ — is the contract's peak fire exposure and the most warranted risk on the policy.
Yes. Selecting or substituting the system, positioning cavity barriers, detailing around openings and balconies, adapting the tested build-up to the building as found and confirming regulation 7(2) compliance in the completion documentation are all design acts, whatever the architect's drawings say. Contractors' or design-and-construct PI with the cladding exclusion deleted, and a design responsibility matrix defining the scope, are essential.
Under the plan updated in July 2025, residential buildings over 18 metres must be remediated by the end of 2029 or landlords face criminal prosecution with unlimited fines and possible imprisonment; buildings of 11–18 metres must be remediated or have a completion date by the end of 2029 or be escalated for investigation and enforcement. A Remediation Bill will create a legal duty to remediate and a Remediation Backstop allowing local authorities and Homes England to do the works and recover costs.
In contract six years from breach or twelve under a deed; in negligence six years from damage or three from knowledge with a fifteen-year longstop; and under the Defective Premises Act, since section 135 of the Building Safety Act 2022, fifteen years from completion — every remediation contract is dwelling work. A post-completion PAS 9980 appraisal years later, or a fire, can start the clock. Building liability orders mean restructuring does not shed the exposure.
Yes, on two bases. Liability is occurrence-based, so a fire after the business stops is covered only if a policy is in force on the date of the fire — products liability run-off for the installed walls. PI is claims-made, so a claim arising from a post-completion appraisal is covered only by PI run-off. Fifteen years is the prudent horizon. Specialist markets offer declining run-off to contractors they already insure with a clean record; it is far harder to buy after a gap or a decline, so plan it from the first contract.
Partly. Funder warranties commonly carry fitness-for-purpose or compliance-guarantee language and multiple beneficiaries with step-in and assignment rights. The contractual-liability exclusion on both liability and PI wordings removes liability assumed beyond what would exist at law, so the guarantee element sits with the business. Negotiate reasonable-skill-and-care language, limited beneficiaries, a cap and net contribution before signing, and match the PI limit to the warranty's requirement.
You are carrying two liabilities: the original installation and the remedial works. The original installation is a circumstance under the policies in force when the defect was first raised — usually when the developer's letter arrived — and must be notified to them, or it is uninsured under the prior-circumstances exclusion on every later policy. Occurrence-based liability policies from the original years may still respond to a fire; PI for the original design needs the notification. Map both with your broker before signing the developer's pass-down, and never accept an indemnity for all losses arising from the original works.
PAS 9980:2022 is the code of practice for fire risk appraisal of external walls, producing a risk rating for an existing wall's construction, materials, cavity barriers and detailing. It is the method by which a chartered fire engineer will judge the contractor's replacement wall after completion — commissioned by a freeholder, lender or the regulator, possibly years later — and a high-risk rating is the claim. The Remediation Acceleration Plan specifies assessor requirements for PAS 9980 appraisals.
The building or the affected part cannot be re-occupied until the completion certificate is issued, and the delay is passed down the chain as a liquidated damages or delay claim. Delay is pure economic loss — outside liability cover and outside PI unless it flows from an insured design breach. Cap liquidated damages, exclude delay caused by regulator timescales and others' defects, and ensure the golden thread records the BSR needs are complete at handover.
Look for a broker whose first questions are which systems you install and their evidence, who designs the wall, how you manage fire during the works, what warranties you have given and what you record — not just your turnover — and who places through Lloyd's and specialist MGA markets with façade appetite rather than package schemes. Miller & Partner places cladding remediation contractors using The Insurability Framework, with the external wall exclusions deleted for named systems, design-and-construct PI matched to funder warranties and run-off planned from the outset.
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