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Construction cover

Contractors’ All Risks Insurance

for UK contractors, developers and specialist subcontractors

Contractors all risks insurance covers the work in progress, the materials on site and the plant and tools you use, against damage, theft, fire, flood and vandalism. Most policies bolt on public liability, and many add employers liability too.

  • Works, materials, plant and tools
  • Single contract or annual cover
  • Liability cover usually included

Quick answerContractors all risks insurance protects a construction project, the materials and the equipment on it against physical loss or damage, and is often packaged with public liability cover for injury or damage to other people. You can buy it for a single contract or as an annual policy covering every job you run. Tell MyMoneyComparison.com about the company once, and specialist UK brokers can come back with quotes to compare.

At a glance

Contractors All Risks at a Glance

The short answers to the questions contractors ask most, before the detail below.

Contractors all risks quick answers
QuestionQuick answer
What does it cover?The works in progress, materials on site, plant, tools and temporary works, against loss or damage.
Is liability included?Usually. Most UK policies package public liability with it, and employers liability can be added.
Is it a legal requirement?No. It is required by building contracts, by lenders and by many clients, not by law.
Who buys it?Whoever the contract says. Often the main contractor, sometimes the employer or developer.
Single job or annual?Either. One contract can be insured on its own, or every job you run under one annual policy.
How long does it last?Through the build, then for a limited period after completion while you finish snagging.
What is the sum insured?The full contract value including materials, labour and an allowance for fees and clearing debris.
What does it cost?It depends on turnover, the type of work, your biggest contract and your claims record.

The basics

What Is Contractors All Risks Insurance?

Contractors all risks insurance, usually shortened to CAR, is a policy that protects a construction project, the materials going into it and the equipment used to build it against physical loss or damage. Most UK policies combine that with third party liability cover.

It is the cover that answers when a half-built structure is damaged by fire, storm or flood, when materials are stolen off site, or when a digger is vandalised over a weekend. You will also see it called contract works insurance, which in UK practice means the same thing: contract works is usually the section name inside a commercial combined policy, and contractors all risks is the name of the standalone version.

Why contractors buy it

  • One policy covering the job, the materials and the kit rather than three separate arrangements
  • Usually packaged with public liability, so the site is covered both ways
  • Available for a single contract or for everything you run in a year
  • Accepted by building contracts, lenders and warranty providers as proof you are insured

One policy, several parts

What usually sits inside

  • Contract worksThe job itself and the materials in itCore
  • Plant and toolsOwned and hired, on site and in transitCore
  • Public liabilityInjury to others and damage to their propertyUsually
  • Employers liabilityRequired by law once you employ anyoneAdded
Which parts you take is up to you and your contracts

How it works

How Does Contractors All Risks Insurance Work?

You tell the insurer what you build and how much of it, set a sum insured for the works and for your plant, and the policy covers physical loss or damage while the job is under way. Cover usually ends at completion, with a short period afterwards for snagging.

  1. Tell the insurer what you build

    Your trade, your turnover, the type of work and the largest contract you expect to run. That sets the shape of the policy.

  2. Set the sums insured

    The contract works figure should be the full value of the job, not just your labour, and the plant figure should reflect what it costs to replace.

  3. Cover runs through the build

    From the start on site until the job is completed or handed over, then for a limited period afterwards while you deal with snagging.

Check the period after completion against the rectification period in your contracts. Policies differ, and if your contract keeps you on the hook for longer than the policy runs, the difference is uninsured. How the sections fit together in one arrangement is set out in our commercial combined guide.

What it covers

What Does Contractors All Risks Insurance Cover?

The core of the policy is the works, the materials and the plant and tools. Most UK policies then add public liability, and employers liability can sit alongside it, so one arrangement covers damage to the job and your liability to other people.

The works in progress

The permanent and temporary works as they go up, against fire, storm, flood, impact, vandalism and accidental damage.

Materials on site

Everything delivered and waiting to be fitted, which is often the most stolen thing on any site.

Plant and machinery

Owned and hired-in plant, from mixers and dumpers to excavators, on site or moving between them.

Tools and equipment

Hand and power tools, usually with a per-item limit and often a lower limit for anything left in a van overnight.

Public liability

Injury to members of the public and damage to property that is not yours. Set out on our public liability page.

Extensions worth asking about

Off-site storage

Materials held away from the site while they wait to be installed.

Professional fees and debris

Architects and surveyors fees after a loss, and the cost of clearing the site.

Extended maintenance

A longer period of cover after completion, matched to your contracts.

Exclusions

What Isn’t Covered by Contractors All Risks Insurance?

The policy does not pay to put right your own defective workmanship, and it does not cover delay, lost profit or gradual deterioration. Existing structures and design errors both need separate arrangements. Limits and wording vary between insurers, so read your own schedule.

Putting your own bad work right

If a wall is built badly, redoing the wall is yours to pay for. The damage that bad wall causes to the rest of the job is usually covered, and that distinction is the one to check in your wording.

Delay and lost profit

Penalties for finishing late, lost profit and other knock-on losses are excluded, even where the delay was caused by damage the policy did pay for.

Wear, tear and gradual damage

Rust, rot, gradual deterioration and normal upkeep are not insured events. The policy responds to sudden, accidental damage.

The building you are working on

Existing structures are excluded unless you add them. Ours on that sits with civil engineering insurance.

Unexplained losses

Stock that is simply missing, with no evidence of theft or damage, is normally outside cover.

Most policies also carry site security conditions, such as locking plant away and removing keys, and some ask you to tell them if a site stops for a long period. Keeping to those conditions is what keeps the cover live. For the wider liability picture see public against employers liability.

Project types

What Kind of Work Can Be Covered?

Contractors all risks can cover new build, refurbishment, groundworks and civils, electrical and mechanical installation, fit-out and speculative development. What changes between them is the sum insured, the hazards an insurer will ask about and how existing structures are dealt with.

Who it’s for

Who Needs Contractors All Risks Insurance?

Anyone carrying the risk of physical damage to a construction project: main contractors, developers, civils and groundworks firms, electrical and mechanical contractors, fit-out specialists and subcontractors. Which of them buys the policy depends on what the contract says.

Main contractors

Running the job, carrying the works sum insured and declaring subcontractors. Often the party the contract names to insure.

Property developers

Building to sell or to let, usually with a lender making the cover a condition of drawdown.

Civils and groundworks firms

Deep excavation, drainage and infrastructure work, rated on depth and proximity to water.

Electrical and M and E contractors

Installed plant that can be damaged during commissioning as well as during the build.

Fit-out and refurbishment contractors

Working inside buildings that already exist and are often still occupied.

Specialist subcontractors

Cladding, roofing, steelwork, glazing and the rest, usually working under someone else’s main contract.

Companies running vans and vehicles between sites insure those separately, under fleet insurance or, for construction specifically, our fleet guide for construction companies. If you work under a main contractor, ask whether you are actually named on their project policy or simply required to carry your own. They are very different positions, and the answer decides whether their insurer could pursue you after a loss.

Compare the options

Annual Cover vs Single Contract Cover

An annual policy covers every job you run in the year and suits contractors with a steady flow of work. A single contract policy is bought for one project and suits a job that is much larger, longer or more unusual than the rest of your book.

Annual contractors all risks compared with single contract cover
Annual policySingle contract
Best forContractors running several jobs a yearOne large or unusual project
How it is boughtOne policy renewed annually, covering every job you take onBought for that contract and its period
Sum insuredSet by the largest contract you expect to runSet by that contract value
AdminNo need to arrange cover job by jobArranged each time, so nothing is assumed
Watch out forThe cap on contract size and length, which decides whether a big job is in at allThe period running out if the programme slips

An annual policy limits how big and how long a job it will accept. If one contract is much larger than the rest of your work, check that limit before you price the job, and ask whether it should sit on its own single contract policy instead. Larger contracting businesses often hold this alongside construction company insurance.

Pricing

How Much Does Contractors All Risks Insurance Cost?

There is no standard price. Contractors all risks is rated on the type of work you do, your turnover and largest contract, the sums insured for the works and your plant, the limits you need and your claims record. Two contractors of the same size can pay very different premiums.

What you build

  • Type of workNew build, refurbishment, civils or fit-out.
  • Annual turnoverAnd how it splits between those types.
  • Largest contractThe biggest single job you expect to run.
  • Site hazardsExcavation depth, work at height, water nearby.

What you insure

  • Contract works sumThe full value of the job, not just your labour.
  • Plant and toolsReplacement cost, and the most valuable single item.
  • Liability limitsWhat your contracts actually require.
  • ExcessWhat you are willing to carry yourself.

Your record

  • Claims historyFive years, by section.
  • Site securityCompounds, immobilisers and how plant is stored.
  • SubcontractorsHow many, and whether they carry their own cover.
  • Years tradingAnd any change of activity or ownership.

We do not publish example premiums, because no UK body collects and publishes pricing for this cover. Every average in circulation is one firm describing its own book, usually of much smaller contractors, so it tells a company with real contract values nothing.

Before you start

What Information Do I Need for a CAR Insurance Quote?

Insurers need your turnover split by type of work, your largest contract, employee and subcontractor numbers, the sums you want insured for the works and your plant, the liability limits your contracts require, and five years of claims.

About the business

  • Turnover for three years, split by type of work
  • Largest single contract, actual and expected
  • Number of employees and subcontractors
  • Five years of claims

The numbers to insure

  • Contract works sum insured at full contract value
  • Plant and tools values, owned and hired
  • Value of materials stored away from site
  • Liability limits your contracts require

From your contracts

  • Who the contract says must insure the works
  • Whether you are named on anyone else project policy
  • The rectification period you have agreed
  • Any phased or sectional handover

Compare with MyMoneyComparison.com

How to Compare CAR Insurance Quotes

Compare the sums insured before the premium, check how long cover runs after completion, and read the exclusions that bite on the work you actually do. Two quotes at the same price can be worth very different amounts.

  1. Compare the sums, not just the price

    A cheaper quote with a lower contract works figure is not cheaper, it is less cover. Line the sums insured up side by side first.

  2. Check what happens after completion

    How long cover runs once the job is handed over, and whether that matches the rectification periods in your contracts.

  3. Read the exclusions that apply to your trade

    Faulty workmanship, existing structures and site security conditions are where quotes differ most.

Tell us about the company once and specialist UK brokers can come back to you. We are an introducer rather than a broker, so we do not sell the policy or recommend one. Our editorial policy explains how we work.

Cutting costs

How Can I Reduce the Cost of Contractors All Risks Insurance?

Better site security, accurate sums insured and a precise description of the work are the three things that move the price most. Separating an unusually large contract onto its own policy and reviewing the excess can also help.

Tighten site security

Locked compounds, immobilisers, keys removed and plant marked. It reduces the claims that push renewals up.

Get the sums insured right

Understating the works figure saves very little and can cut a claim. Overstating it just costs you.

Describe the work accurately

A vague trade description gets rated cautiously. A precise one usually gets rated better.

Separate the outlier job

If one contract is far bigger than the rest, insuring it on its own can be cheaper than stretching the annual policy.

Report changes as they happen

New activities, bigger contracts and new plant are cheaper to declare than to argue about later.

Review the excess

Carrying a larger excess on small, frequent losses can bring the premium down noticeably.

Premises, stock and business interruption sit on a separate policy again. Ours is commercial property insurance.

Jargon buster

Contractors All Risks Jargon, Explained

The terms that come up most when you read a contract works schedule.

Contract works
The job itself, the permanent and temporary works and the materials going into them.
Sum insured
The most the policy will pay for that item. For the works it should be the full contract value.
Joint names
A policy naming more than one party, so each is insured in their own right.
Maintenance period
The time after completion when you return to finish snagging, and cover can continue.
Free issue materials
Materials the client supplies for you to install. They still need insuring.
Underinsurance
Setting a sum insured below the true value, which can reduce what a claim pays.
Existing structures
The building already standing before you started, which needs its own arrangement.
Excess
The first part of any claim that you pay yourself.

Why MyMoneyComparison.com

Comparing Specialist Contract Works Cover

MyMoneyComparison.com is an FCA-authorised UK comparison service that introduces companies to specialist brokers. We do not sell insurance and we do not give advice: the broker you choose arranges the policy. Comparing is free and there is no obligation.

1

Form for the whole company

Describe the business, the contracts you run and the cover you need once instead of repeating yourself to each broker.

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Advice given

We are an introducer, not a broker. We do not sell policies and we do not recommend one. Read our editorial policy.

FCA

Authorised and regulated

MyMoneyComparison.com Ltd appears on the FCA register under FRN 916241.

2013

Comparing since

A UK company since 2013, working with specialist brokers across the country.

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FAQs

Contractors All Risks Insurance FAQs

The questions UK contractors and developers ask most about contract works cover.

What is contractors all risks insurance?

It is a policy that protects a construction project, the materials going into it and the equipment used to build it against physical loss or damage, and in most UK policies it is packaged with public liability cover. It is also called contract works insurance, which in practice means the same thing.

Is contractors all risks insurance a legal requirement?

No. No UK law requires it. What does require it is the building contract you work under, and often a lender or warranty provider as a condition of funding. Employers liability, once you employ anyone, and motor cover for vehicles on the road are the only insurances UK law requires of a contractor.

Who is supposed to take out the policy?

Whoever the contract names. On new build work it is commonly the main contractor, and on work to an existing building it is often the employer or developer instead. Read the insurance section of your contract before you buy, because contractors regularly assume the duty is always theirs when it is not.

What is the difference between contractors all risks and contract works insurance?

In UK practice they mean the same cover. Contract works is usually the section name inside a combined commercial policy, and contractors all risks is the name of the standalone product. Some policies split the works, plant, tools and hired-in plant into separate sections with separate sums insured, so read the schedule rather than the title.

Does it include public liability?

Usually, yes. Most UK contractors all risks policies are sold as a package with public liability, so damage to the job and injury or damage to other people are dealt with in one arrangement. Employers liability is normally added alongside. Check your schedule, because a standalone works-only policy does exist.

Does it cover my tools and plant?

Normally yes, under their own section with their own sums insured. Owned and hired-in plant is usually covered on site and in transit, and hand and power tools carry a per-item limit. Many policies apply a lower limit, or no cover at all, for tools left in a vehicle overnight.

Does it pay to put right my own faulty workmanship?

No. Redoing the work that was done badly is your cost. What most policies do cover is the damage that faulty work causes to the rest of the job, which is often far the bigger number. The wording differs between insurers, so it is worth reading your own exclusion.

Am I covered for the building I am working on?

Not as standard. Cover applies to the works you are carrying out, and the structure that was already there is excluded unless you add it. On refurbishment and fit-out work that is an important gap to close, and who arranges it usually depends on what the contract says.

Is theft of materials from site covered?

Usually, subject to the security conditions in your policy. Insurers commonly ask for materials and plant to be stored securely, for keys to be removed and for immobilisers to be used. Meeting those conditions is what keeps the cover live, and not meeting them is a common reason claims are argued about.

How long does cover last after the job finishes?

Cover normally runs until the job is completed or handed over, then continues for a limited period while you carry out snagging. That period varies between policies. Check it against the rectification period in your contracts, because if the contract runs longer than the policy the difference is uninsured.

Should I buy an annual policy or insure one contract?

An annual policy suits a contractor running a steady flow of work, because every job is covered without arranging cover each time. A single contract policy suits one project that is much larger, longer or more unusual than the rest of your book. Many contractors hold an annual policy and buy single cover for outliers.

What happens if a job is bigger than my annual policy allows?

Annual policies limit the size and length of contract they will accept, and going over that limit can leave the job uninsured rather than merely underinsured. It is one of the most common gaps in contracting insurance. Check the limit before you price a large job and tell your broker if you expect to exceed it.

What should the contract works sum insured be?

The full value of the contract, including materials and labour rather than just your own element, plus an allowance for professional fees and for clearing debris after a loss. Setting it too low can reduce what a claim pays, and on many policies it is applied proportionately, so a shortfall becomes a shortfall in the settlement.

Do free issue materials need insuring?

Yes, and they are easy to miss. Materials the client supplies for you to install still sit at risk on your site, and policies treat them differently: some include their value in the contract value, others expressly leave it out. Ask which yours does and make sure the figure reflects the answer.

Am I covered if I am named on the main contractor policy?

If you are genuinely named as a joint insured, you have real protection. But being required by your subcontract to carry your own cover is not the same as being named on theirs, and contractors often assume it is. Ask which position you are in before you sign, because it decides who can pursue you after a loss.

Does it cover delay or lost profit?

No. Penalties for finishing late, lost profit and other knock-on losses are excluded, even where the delay was caused by damage the policy did pay for. That is a contractual risk to manage in the contract itself rather than an insurable one, and it is worth pricing when you agree damages for delay.

What about design errors?

A design that is simply wrong, where nothing has been physically damaged, is not a contract works claim. That is what professional indemnity insurance is for. Where a design error causes something to fail physically, your contract works policy deals with the resulting damage on whatever basis your exclusion sets.

How much does contractors all risks insurance cost?

There is no standard price and we publish no examples, because no UK body collects and publishes pricing for this cover. What moves your premium is the type of work you do, your turnover and largest contract, the sums insured for the works and plant, the limits you need and your claims record.

Ready when you are

Compare CAR Insurance Quotes

Tell us what the company builds, the largest contract you run and the limits your contracts require, and specialist UK brokers can come back with quotes. Free to use, with no obligation to buy.

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  • Works, materials, plant and liability
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About this page

This page explains what contractors all risks insurance is, what it covers, who needs it and what moves the price, for UK contracting companies and developers with employees rather than one-person businesses. It is general information rather than advice. Policies differ, so read your own schedule and put the questions here to your broker. For building contractors see construction company insurance, for ground and infrastructure work see civil engineering insurance, and for electrical and M and E work see electrical contractors insurance.

How we researched this page

  • Five UK and London market contract works wordings, read clause by clause and compared on cover, exclusions, sums insured and the period after completion
  • The insurance provisions of the two standard form UK building contract suites, for who is required to insure the works
  • Health and Safety Executive guidance on compulsory employers liability insurance

We publish no example premiums, because no UK body collects and publishes pricing for this cover. Where wordings differ we say they differ rather than picking one and calling it the market. Three things in wide circulation are corrected here: that this cover is required by law, that the contractor is always the party who must buy it, and that a policy will pay to redo work that was done badly.