Foundry & Casting Insurance | Specialist High-Hazard Cover | Miller & Partner
Foundry & Casting Insurance
Molten metal, furnaces and pouring make a foundry one of the highest fire-load risks in engineering — and most standard insurers simply won't write it. We arrange proper cover for foundries and casting businesses, including the molten-metal and products-liability exposures the generic markets decline, through Lloyd's and specialist insurers.
Few engineering businesses concentrate as much hazard under one roof as a foundry. Furnaces running at well over a thousand degrees, the handling and pouring of molten metal, combustible moulding materials, dust, and the constant risk of burns and fire combine into a risk profile that automated underwriting simply refuses. On top of that sits a serious products-liability exposure — a cast component that fails in service can carry a claim far beyond the value of the casting itself. The result is that a well-run foundry struggles to find anyone willing to quote. A specialist broker takes the risk, and the controls that manage it, to the markets that understand casting and will write it. Below is why it's so hard to place, what your cover needs, and how we arrange it.
Why Foundries Are Hard to Insure
The difficulty is the sheer concentration of severe hazards. The points underwriters focus on — and where generic insurers walk away — are:
- Molten metal & furnaces — high-temperature melting and pouring is a primary fire and serious-injury hazard insurers treat with great caution.
- High fire-load premises — combustible moulding sand binders, patterns, fuel and dust create a significant fire risk across the site.
- Burn & injury exposure to staff — molten metal handling makes employers' liability claims potentially severe.
- Products & completed-operations liability — a casting with a hidden defect or porosity can fail in service, triggering a claim for the whole assembly it sat in.
- Explosion risk — moisture meeting molten metal, and dust, both carry recognised explosion hazards.
- Environmental exposure — emissions, fumes, and waste from the process add a pollution dimension many insurers avoid.
- High-value plant & long downtime — furnaces and casting lines are costly and slow to replace, making business interruption critical.
What Your Cover Should Include
Placed through the right market, a foundry can be fully and properly insured. The cover should include:
- Property & fire cover that reflects the real hazard — buildings, furnaces, and plant, written by an insurer that prices the molten-metal fire load rather than excluding it.
- Products & completed-operations liability — for castings that fail in service, at a limit that fits the sectors you supply.
- Employers' liability — essential given the burn and injury exposure, and a legal requirement with staff.
- Public liability — for injury and property damage to third parties.
- Plant & machinery breakdown — furnaces, ladles, casting lines, and handling equipment.
- Business interruption — lost income during the long downtime a major loss can cause.
- Customer goods & environmental cover — patterns and tooling in your care, plus pollution exposure where needed.
Casting Businesses We Cover
Whatever your process and metal, we can build cover around it:
| Business type | Key exposure we address |
|---|---|
| Iron & steel foundries | Molten metal, furnaces, high fire-load |
| Aluminium & non-ferrous foundries | Melt handling, explosion and dust risk |
| Die casting (pressure & gravity) | High-value machinery, products liability |
| Investment / sand casting | Combustible moulding materials, process fire load |
| Foundries supplying critical sectors | Safety-critical castings, recall exposure |
| Casting with machining & finishing | Combined process and hot-work exposure |
How It Works
Tell us about the foundry
Your metals and processes, furnaces and plant, fire and handling controls, the sectors you supply, premises, and turnover.
We approach the right market
We present the risk and your controls to Lloyd's and specialist insurers who write molten-metal and casting risk properly.
You get a real quote
We come back with terms you can buy, at limits that fit your fire load and products exposure, and handle the placement end to end.
Why a Broker Beats a Generic Online Quote
Most online quote engines and direct insurers don't even offer a foundry option — and those that do decline on sight of the molten-metal and furnace hazards, with no one to weigh how well the business actually manages its risk. A foundry with excellent controls and decades of safe operation gets the same automated "no" as a careless one.
A specialist broker changes that entirely. We present your furnace maintenance, molten-metal handling, fire suppression, and process controls to underwriters who understand casting and can price the risk on its merits — and we size the products-liability cover to the castings you actually supply. For a foundry, that's usually the difference between being properly insured and being shut out of the market. If you also machine or fabricate, see our CNC and precision engineering insurance and welding and fabrication insurance pages, and if you finish or coat your castings, our powder coating and metal finishing insurance page.
Frequently Asked Questions
Because a foundry concentrates several of the hazards insurers fear most into one site: furnaces and molten metal, high fire-load materials, explosion and dust risk, severe burn exposure to staff, and products liability on the castings. Automated underwriting responds by declining outright. It isn't that a foundry is uninsurable — it's that the risk needs a specialist market that understands casting and will assess your actual controls rather than rejecting the trade on sight. That's what we arrange.
Insurers writing foundry risk look closely at furnace maintenance and monitoring, molten-metal handling and pouring procedures, fire detection and suppression, dust control and housekeeping, moisture management to prevent explosions, and staff burn-protection and training. Well-documented, evidenced controls often make the difference between a workable quote and a flat decline. We help present them to underwriters in the way that secures the best terms.
Yes — and it's one of the most important covers for a foundry. A casting can carry a hidden defect or porosity that only shows up when the part is in service, and if it fails the claim can extend to the whole assembly it was part of, plus recall and consequential losses. Casting components for others is precisely when products and completed-operations liability matters most. We size it to the sectors you supply rather than just your turnover.
It's critical. Furnaces and casting lines are high-value and slow to repair or replace, so a serious fire or breakdown can halt production for a long time — and with it, your income. Business interruption cover keeps the business afloat during that downtime. Given how concentrated and severe the fire risk is in a foundry, leaving BI out is one of the most dangerous gaps a casting business can have.
Foundry processes produce emissions, fumes, and waste, which create a pollution and environmental dimension that many standard insurers avoid and a basic policy won't address. Depending on your operation, environmental or pollution cover may be needed alongside the core policy. We can arrange this through specialist markets as part of the placement where your process requires it.
The metals and casting processes you run, your furnaces and plant, your fire and molten-metal handling controls, the sectors and customers you supply, your premises and staff, annual turnover, and any machining or finishing you do in-house. With that we can approach the right specialist market and come back with terms.
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