What Insurance Does a Metal Fabricator Need?

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A practical, UK-focused guide to the covers metal fabrication businesses typically need - including liabilities, workshop/property, tools, goods in transit, contract works, business interruption and professional indemnity where you provide drawings or design input.

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THE METAL FABRICATION INSURANCE CHECKLIST (UK GUIDE)

Metal Fabrication Insurance: What Cover Do You Actually Need?

“Metal fabrication” covers a huge range of trades - from sheet metal enclosures and ducting, to architectural metalwork, platforms and guarding, to bespoke assemblies for OEMs. Some firms are workshop-only. Others supply and fit. Some provide drawings and technical sign-off. The insurance you need depends on the way you operate, not just your industry label.

This page is a practical guide to the covers metal fabricators typically need in the UK, why each cover matters, and the common gaps we see when policies are bought in a hurry or set up without understanding your contracts. The aim is simple: protect your business cashflow, keep you compliant, and make sure one incident doesn’t undo years of work.

Insure24 arranges specialist insurance packages for metal fabrication businesses. If you want a fast quote, call us or apply online - and we’ll help you build a programme that matches your workshop, your site work, your products and your contractual responsibilities.

The Short Checklist: Core Covers Most Metal Fabricators Need

Most UK metal fabrication businesses need a combination of liability cover and asset protection. The “base” package often starts with public & products liability and employers’ liability (if you employ staff), then expands to include workshop/property, tools, stock/materials, goods in transit, and business interruption.

If you also provide drawings, design assistance, specification advice or technical sign-off, you may need Professional Indemnity to protect against financial loss claims that liability insurance does not cover. And if you do on-site installation or erection, you may need contract works and cover that reflects height work, hot works and hired-in plant exposure.

The right insurance programme is not about ticking boxes. It is about matching cover to your real risks: your products, your contracts, your site environments, your workforce model, your turnover, and the value you have at risk in premises, tools and stock.


  • Public Liability (third-party injury/property damage)
  • Products Liability (claims arising from supplied products)
  • Employers’ Liability (legal requirement if you employ staff)
  • Workshop/Property & Contents (fire, theft, flood, etc.)
  • Tools & Portable Equipment (on/off premises)
  • Stock & Materials (raw materials + finished goods)
  • Goods in Transit (deliveries to customers/site)
  • Business Interruption (loss of income after insured damage)
  • Contract Works (damage to works in progress on site)
  • Professional Indemnity (design/drawings/spec risk)

1) Public Liability Insurance (Site Visits, Deliveries & Third-Party Damage)

Public liability insurance is designed to protect your business if your activities cause injury to a third party or damage to their property. For metal fabricators, public liability claims commonly arise from site surveys, deliveries, installation work, and interactions with other trades. Even workshop-only operations can face public liability exposure if customers visit your premises, if you load/unload at third-party sites, or if your drivers damage property during deliveries.

Many clients and principal contractors require evidence of public liability cover before you start work - commonly £2m, £5m or £10m. The correct limit depends on the environments you work in and the contracts you sign. A small job can still create a large third-party claim if a member of the public is injured or if a high-value property is damaged.

Public liability is not simply “a certificate”. It is the legal and financial safety net that keeps one accident from becoming a business-ending event. We help you choose limits that satisfy contract expectations while keeping premiums sensible.


  • Third-party injury and property damage claims
  • Legal defence costs included (subject to policy terms)
  • Suitable for site surveys, deliveries, fit-outs and installation work
  • Limits aligned to client / principal contractor requirements
  • Important for occupied premises and public-facing environments

2) Products Liability Insurance (When You Supply Fabricated Items)

Products liability covers claims where a product you manufactured or supplied causes third-party injury or property damage. This is vital for metal fabricators because your outputs can be used in safety-critical or high-usage environments: handrails, guarding, platforms, brackets, enclosures, gates, railings, ducting, frames, stairs, balustrades and more.

Products liability is especially important where you supply to third-party installers or where the product is used by the public. Even if you did not install the item, a claim may still allege a manufacturing defect, incorrect material selection, welding failure, or inadequate design (depending on the responsibilities you accepted).

The key is to describe your products accurately and ensure your policy reflects the real use-case. Insurers underwrite differently for decorative items versus load-bearing structures, guarding versus architectural staircases, and simple brackets versus bespoke assemblies. Clear descriptions help secure appropriate cover and avoid later disputes.


  • Claims arising from products you manufacture and supply
  • Suitable for supply-only and supply-and-fit models
  • Supports trade and contract requirements
  • Important for safety-critical items and public-facing installations
  • Works alongside quality control and traceability procedures

3) Employers’ Liability Insurance (Usually a Legal Requirement)

If you employ staff in the UK, employers’ liability insurance is typically a legal requirement (subject to limited exceptions). Metal fabrication involves risks that can lead to workplace injury or illness: manual handling, sharp edges, burns from hot works, eye injuries, welding fumes, grinding dust, noise exposure, slips/trips, and (for installation teams) work at height and lifting operations.

Employers’ liability covers compensation and legal costs if an employee is injured or becomes ill due to work. It protects your business financially and helps demonstrate that you take compliance seriously - something that can matter for principal contractors and larger procurement processes.

Workforce structures can be complex: employees, apprentices, labour-only subcontractors, bona-fide subcontractors, and temporary labour. The way people are engaged can affect how cover should be arranged. We help you align your policy with the reality of your workforce and supervision model.


  • Legal requirement for UK employers (subject to exceptions)
  • Covers employee injury/illness claims and legal costs
  • Relevant for workshop hazards and site installation work
  • Supports contractor onboarding and compliance requirements
  • Can reflect employees, apprentices and labour-only engagement (disclosure dependent)

4) Workshop, Buildings, Contents & Stock (Fire, Theft, Flood)

Your workshop is often the engine of your business - and it’s where the highest concentration of value sits: machinery, welding bays, tools, jigs and fixtures, raw materials, partially completed work and finished goods awaiting delivery or installation. Property and contents insurance protects these assets against insured events such as fire, theft, flood, storm and malicious damage.

Metal fabrication claims frequently involve fire and smoke damage (particularly where hot works are present), theft of tools and copper/stainless materials, and flood/water ingress in industrial units. Even when the damage is contained, the downtime and clean-up can be significant.

Setting sums insured properly is critical. Underinsuring can create reduced claim settlements; overinsuring can inflate premiums. We help you value buildings (if owned), tenant improvements, machinery, tools, and stock - and structure cover to suit your premises security and how you store high-value materials and finished goods.


  • Buildings (if owned) and/or tenant’s improvements
  • Workshop contents: machinery, welding equipment, compressors, extraction, etc.
  • Stock: raw materials, consumables and finished goods awaiting delivery
  • Theft terms aligned to security measures and policy conditions
  • Supports lender/landlord requirements where applicable

5) Tools & Portable Equipment (Workshop + Off-Site)

Tools are the lifeblood of fabrication and installation. A theft can stop production instantly; replacing specialist welding sets, grinders, torque tools, drills and measurement equipment at short notice is costly. If you do site work, the risk increases because tools move between locations and may be stored in vehicles or temporary site storage.

Tool cover can be arranged for equipment at your premises and away from premises, subject to conditions. The most important detail is matching policy conditions to your actual storage and security practices. For example, theft from vehicles may require locked compartments, visible forcible entry, and time-based restrictions.

We help you set realistic sums insured and avoid the “we didn’t realise that condition applied” problem that often appears at claim stage.


  • Portable tools cover (on and off premises)
  • Options for tools stored temporarily on sites (subject to terms)
  • Theft-from-vehicle considerations (conditions are usually strict)
  • Helps prevent project delays due to replacement lead times
  • Can sit alongside hired-in plant exposure where relevant

6) Goods in Transit (Deliveries, Loading/Unloading & Transit Damage)

Fabricated metalwork is often awkward to transport. Damage can occur through load movement, poor restraint, impacts during loading/unloading, or insufficient edge protection. This risk is amplified for finished and coated items where cosmetic damage can mean complete refinishing.

Goods in transit insurance can protect your business against loss or damage while goods are being transported - whether in your own vehicles, using a courier, or via a haulier. The correct structure depends on who is responsible under the delivery terms and whether you transport high-value assemblies, staged deliveries, or time-critical items for installation programmes.

If you have customers collecting items themselves, or if you deliver to construction sites with limited laydown space, it’s worth clarifying where responsibility transfers. We can help you align cover with your delivery terms to avoid unexpected gaps.


  • Cover for fabricated goods while being transported
  • Options for own vehicles, couriers and third-party hauliers
  • Useful for coated finishes and high-value assemblies
  • Supports supply-and-fit contracts where you control delivery
  • Helps protect margins when items must be remade/refinished quickly

7) Business Interruption (Loss of Income After an Insured Event)

Many businesses insure their workshop and contents but overlook business interruption - the cover that protects your income if you cannot trade after an insured event such as fire or flood. If a major incident shuts your workshop, you may still have rent, rates, wages and finance agreements to pay, plus the pressure of client deadlines and contractual commitments.

Business interruption cover can replace lost gross profit and contribute to fixed costs during recovery. It can also include “increased cost of working” - additional expenses you incur to keep trading, such as outsourcing, temporary premises, or hiring replacement equipment.

Choosing a realistic indemnity period is critical. Some workshops can restart quickly; others may face long lead times for machinery replacement, power upgrades, extractor installs, and reinstatement. We help you select an indemnity period that matches the real-world rebuild timeline, not an optimistic guess.


  • Lost gross profit following insured damage at premises
  • Supports ongoing costs (rent, wages, utilities, finance agreements)
  • Increased cost of working options (outsourcing, temporary premises)
  • Indemnity periods aligned to realistic recovery times
  • Protects cashflow and business continuity during disruption

8) Contract Works / Installation Works (If You Install or Erect)

If you do supply-and-fit, installation or erection, you need to think beyond standard liability cover. Liability insurance protects you when you are legally liable to a third party. But many losses during installation involve damage to the works themselves before completion - dropped sections, impact damage, theft from site, or accidental damage to coated finishes before handover.

Contract works (sometimes called “contractors’ all risks” or “installation works”) can cover the value of the works in progress - subject to policy terms. This is important because many contracts place the responsibility on the contractor until practical completion, even if items are stored on site.

Installation work also introduces exposures such as hot works, working at height, lifting operations, and hired-in access equipment. Your insurance declarations must reflect these realities. If the policy is set up as “workshop only” but you regularly install on site, that misalignment can create problems. Insure24 helps you structure cover that matches the truth of your operations.


  • Damage to works in progress prior to completion/handover (where arranged)
  • Useful for staged deliveries and items stored on site
  • Supports supply-and-fit and erection risk exposures
  • Works alongside public liability and employers’ liability
  • Helps reduce disputes about “who pays” after on-site incidents

9) Professional Indemnity (If You Provide Drawings, Design Assist or Spec Advice)

Professional indemnity (PI) insurance protects you when a client alleges your professional services caused them financial loss - for example, errors in drawings, specifications, tolerances, advice, interpretation or technical sign-off. It is commonly required if you produce shop drawings, provide design assistance, or accept design responsibility within contract terms.

This is a key distinction: liability insurance generally responds to bodily injury or property damage claims. PI is designed for “pure financial loss” claims: rework costs, redesign costs, delay costs, and disputes about professional duty of care.

Many metal fabricators unintentionally take on design responsibility through emails, value engineering suggestions, or accepting contract wording without review. If you are asked for PI, or if you regularly provide drawings and technical input, we can arrange PI alongside your operational covers so there are fewer gaps.


  • Claims for errors/omissions in drawings, design or specifications
  • Financial loss claims: rework, redesign and delay allegations
  • Useful for shop drawings, design-assist and value engineering scopes
  • Claims-made basis: continuity and retroactive dates matter
  • Supports contracts that require PI limits and proof of cover
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We thought “liability” covered everything - until a client challenged our drawings and claimed delay costs. Insure24 helped us put PI in place and tighten our overall fabrication insurance programme.

Managing Director, UK Metal Fabrication Company

PROTECT YOURSELF


  • Claims and legal defence costs if your work injures someone or damages property
  • Loss or damage to your workshop, machinery, tools and stock
  • Transit damage to fabricated items being delivered to customers or sites
  • Loss of income following insured damage at your premises
  • Professional disputes when drawings, advice or specifications are challenged (PI where needed)

Compliance & Contract Requirements: Avoiding Common Insurance Gaps

Many metal fabricators buy insurance to “tick the box” for a contract, then discover later that the cover did not match how they operated. The most common gaps happen when the insurer thinks you are workshop-only but you install on site; when you provide drawings/design input but do not have PI; when tools are insured but vehicle and site conditions are not followed; or when contract terms create liabilities your policy was not designed to cover.

Practical steps to reduce gaps: disclose your activities accurately (installation, hot works, height work, lifting), review contractual liability clauses, keep evidence of RAMS and permit-to-work compliance, and structure cover for the value you truly have at risk (tools, stock, works in progress, interruption).

Insure24 helps you build an insurance programme that supports onboarding, tenders and compliance portals - without overcomplicating it. If you have complex contract wording, we can help you understand what insurers will and won’t cover so you can make informed decisions before you sign.


  • Public liability limits commonly required: £2m / £5m / £10m
  • Employers’ liability required if you employ staff (subject to exceptions)
  • Installation work must be declared (especially hot works and height work)
  • PI may be required for drawings, design-assist and spec advice
  • Documented processes (RAMS, approvals, revision control) reduce disputes

FREQUENTLY ASKED QUESTIONS

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What insurance is legally required for a metal fabrication business in the UK?

If you employ staff, employers’ liability insurance is usually a legal requirement (subject to limited exceptions). Other covers such as public liability, products liability, property/workshop and tools are not generally “legal requirements” but are commonly essential for contracts, lenders/landlords, and to protect against high-cost claims and asset losses.

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Do I need public liability if I’m workshop-only?

Often yes. Even workshop-only fabricators can have public liability exposure from customer visits, collections, deliveries, loading/unloading at third-party sites, and accidental damage linked to your operations. If you ever go on site to measure, deliver or fit, public liability is usually essential.

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What’s the difference between products liability and professional indemnity?

Products liability usually responds to claims for injury or property damage caused by products you supply. Professional indemnity (PI) responds when the allegation is about professional services - such as drawings, advice, specifications, tolerances or design input - causing financial loss (for example rework or delay costs). Many fabricators need both covers if they supply products and provide drawings/design assistance.

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Do I need contract works cover if I install metalwork on site?

In many cases, yes. Public liability focuses on third-party injury/property damage. Contract works/installation works can protect the value of the works in progress if items are damaged, stolen or impacted before completion and handover (subject to policy terms). If you are responsible for the works until practical completion, contract works can help prevent costly uninsured losses.

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Can I insure tools that are taken to site or kept in vans?

Yes. Tools and portable equipment can be insured on and off premises, often with strict security requirements - especially for theft from vehicles. The key is making sure sums insured are accurate and that your storage practices match the policy conditions (locked vans, alarms, visible forcible entry, etc.).

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What liability limit should a metal fabricator choose?

Many contracts require £2m, £5m or £10m public liability. The right limit depends on where you work (public-facing locations vs controlled industrial sites), the nature of your products, contract requirements, and the potential severity of a claim. Insure24 can help you choose a limit that balances contract compliance and cost.

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Is business interruption insurance worth it for a fabrication workshop?

Often, yes. If a fire, flood or major insured event stops your workshop operating, the biggest cost may be lost trading income and ongoing fixed costs. Business interruption can replace lost gross profit and support extra costs to keep trading (outsourcing, temporary premises), helping protect cashflow during recovery.

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What information do I need to get an accurate insurance quote?

Typically: turnover and work split (fabrication vs installation vs design), number of staff, claims history, premises details and security, hot works exposure, height work and lifting, values for tools/machinery/stock, and contract requirements (liability limits, PI requirements). The clearer the information, the easier it is to get competitive and appropriate terms.

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