Public Liability Insurance for established UK firms
Public liability insurance pays compensation and legal costs when your business injures a member of the public or damages their property. Compare limits and terms through specialist brokers who place liability risks for firms with staff, sites and contracts.
- Limits set to match client and contract demands
- Claims handled and defended by the insurer
- Cover at your premises and on customers' sites
Reviewed October 2026 by the MyBusinessComparison.com editorial team
What is public liability insurance?
Public liability insurance covers your business against claims from third parties, such as customers, visitors, passers-by and clients, who are injured or whose property is damaged because of your work or premises. It meets the compensation awarded and the legal costs of defending it, up to the limit shown on your schedule.
It does not cover your own staff, who are protected by employers' liability insurance, or faults in goods after they leave your hands, which fall under products liability cover. Most insurers write public and products liability as one section, and most firms buy employers' liability on the same policy.
Cover is usually written on an occurrence basis: the policy in force on the date the injury or damage happened responds, even if the claim arrives years later. The limit applies to each occurrence, and many contracts, landlords and public bodies set a minimum before you can start work.
Public liability cover in brief
- Protects against
- Injury to third parties and damage to their property
- Compulsory?
- No, but clients, landlords and councils often insist on it
- Limit basis
- Usually any one occurrence, with defence costs often paid on top
- Claims trigger
- Occurrence: the policy in force when the incident happened
- Priced on
- Activities, turnover or wage roll, work locations and claims
- Usually paired with
- Employers' liability and products liability
What public liability insurance covers
A public liability section responds to accidents your business causes to people outside it. These are the parts of the cover that come up most often when claims are made.
Injury to members of the public
A customer slips on a wet floor at your premises, or a passer-by is struck by materials dropped from scaffolding. The policy pays compensation for the injury, lost earnings and care costs.
Damage to third party property
Accidental damage to a client's building, a neighbour's wall or a car parked beside your site, including repair costs and any resulting loss the owner can claim.
Defence costs
Solicitors, expert reports and court costs to defend an allegation, usually paid in addition to the limit when the claim is covered. The insurer takes over handling from first notification.
Work away from your premises
Liability arising while staff work in customers' homes, offices, sites and public spaces, subject to any limits the insurer sets on heat, height or depth.
Read more about liability for construction and trade firms
Premises you rent or hire
Depending on the insurer, an extension for damage to premises you lease or hire for a short period, which the owner's insurer may otherwise pursue you for.
Read more about commercial property insurance
Indemnity to principals
When a contract asks you to protect the client against claims arising from your work, most policies extend to cover that principal, provided the claim stems from your negligence.
Cross liabilities
Where more than one party is named on the policy, each is treated as if insured separately, so a claim by one named party against another can still be considered.
Loading, unloading and plant as a tool
Accidents while goods are loaded or unloaded, or caused by vehicles working as tools off the public road, where a motor policy may not respond.
Read more about commercial vehicle insurance
Sudden pollution incidents
Injury or damage from a sudden, identifiable, unintended and unexpected incident, such as a burst tank or a spill. Gradual seepage and contamination need separate cover.
Read more about environmental liability insurance
Covers that often sit alongside public liability
- Products liability: claims caused by goods you make, supply, install or repair after they leave your control
- Employers' liability: compulsory cover for injury and illness suffered by your own staff
- Professional indemnity: claims for financial loss from advice, design or specification you provide
- Contractors' all risks: damage to the works themselves, which liability cover does not pay for
- Commercial legal expenses: contract and employment disputes that a liability policy will not defend
Which businesses buy public liability insurance?
Any firm whose work brings it into contact with customers, visitors or other people's property needs it. These are the businesses that tend to need higher limits or specialist terms.
Working in a specialist trade? Many trade firms buy public liability inside a wider package. See insurance for trade businesses or browse cover by industry.
- Building and construction contractors: main contractor agreements usually set the limit, and heat, height and depth all affect terms
- Electrical and mechanical contractors: installation work in occupied buildings, where damage to existing fixtures is a regular source of claims
- Groundworks and civil engineering firms: strikes on underground cables and pipes are a common claim, so insurers ask how services are located
- Retailers: slips, trips and falling stock are the classic shop claims, and multi-site groups need one limit across every branch
- Hotels, pubs and restaurants: high footfall, events and busy kitchens, with scalds, slips and broken glass behind many claims
- Leisure venues and attractions: gyms, soft play centres and attractions where the activity itself carries a higher chance of injury
- Event organisers: temporary structures, crowds and venue hire agreements that demand evidence of cover
- Cleaning and facilities firms: work across clients' buildings, where wet floors and damage to fittings drive claims
- Security companies: guarding and patrols that bring staff into regular contact with the public
- Manufacturers with visitors on site: customers, drivers and contractors on the premises, alongside products cover for the goods made
- Wholesalers and distributors: yards with forklifts and visiting drivers, and goods delivered into customers' premises
- Property maintenance companies: repairs in occupied homes and commercial buildings for landlords and managing agents
How much does public liability insurance cost?
Premiums reflect how likely your work is to hurt someone or damage property, and how large a claim could be. Insurers look closely at the following.
What you do and where
Scaffolding, occupied buildings, roadside work and hot works carry more weight than office or showroom activity. Work at height or depth is often rated separately.
Turnover or wage roll
Shops and service firms are usually rated on turnover, while contractors are often rated on manual wage roll plus payments to subcontractors.
Limit of indemnity
A higher limit costs more, though not in direct proportion. Matching the limit to what your contracts actually ask for avoids paying for headroom nobody needs.
Subcontractor controls
Insurers want to see that subcontractors hold their own liability cover and that you check it. Without that, their work may be rated as your own.
Footfall and premises
For shops, venues and hospitality, visitor numbers, floor surfaces, lighting and cleaning routines all shape the rate.
Claims record
Past injury and damage claims, their causes and what changed afterwards. A clean, well documented record helps at renewal.
What public liability insurance does not cover
These are the gaps insurers most often point to when declining or reducing a public liability claim.
- Injury or illness to your own employees, which needs employers' liability cover
- Defects in goods after they have left your control, unless products liability is included
- Financial loss from advice, design or specification, which falls under professional indemnity insurance
- Damage to the part of a building you are actually working on, and to the works themselves, which belong under contractors' all risks cover
- Accidents involving vehicles on the road, which a fleet or motor policy deals with
- Liability you accept under a contract beyond what you would owe anyway, unless the insurer agrees it
- Gradual pollution and contamination, unless separate environmental cover is in place
- Claims where conditions on hot works, height or depth were not followed
Public liability or employers' liability: which do you need?
The two are often confused because they sit on the same policy. The difference is who brings the claim.
| Feature | Public liability | Employers' liability |
|---|---|---|
| Who can claim | Customers, visitors, clients and the general public | Your employees, including temporary, seasonal and labour-only staff |
| Compulsory | No, though contracts and landlords often insist on it | Yes, for most businesses with employees |
| Typical claim | A visitor trips over a cable, or a client's floor is damaged | A worker is hurt by machinery or develops industrial deafness |
| How it is rated | Turnover or wage roll and the nature of the work | Wage roll, split between office and manual staff |
| Proof of cover | A schedule or certificate when a client asks for one | A certificate that must be available to staff |
How to arrange public liability cover
A clear picture of your work and your contract requirements lets the broker approach the right insurers first time.
Describe every activity
Include secondary work, work at height or depth, hot works and any work outside the UK, even if it is occasional.
Check contract requirements
Pull the insurance clauses from your main contracts, leases and frameworks so the limit and indemnity to principal terms match.
Gather turnover and wage roll
Split figures by activity where you can, and include payments to subcontractors and labour-only workers.
Set out claims and safety records
Recent claims with their causes, plus method statements, risk assessments and training records for higher hazard work.
Compare conditions as well as the limit
Look at excesses, heat and height restrictions, subcontractor conditions and whether defence costs sit inside or outside the limit.
Need evidence of cover for a contract?
Share your activities, turnover and contract requirements and a specialist broker will compare liability cover.
Get a quotePublic liability insurance questions
How much does public liability insurance cost?
It depends on your trade, the work you do and where, your turnover or wage roll, the limit you need and your claims record. A contractor working at height will pay a very different rate from a showroom with the same turnover. A broker can show you what is driving your premium.
Is public liability insurance compulsory for a business?
No. Unlike employers' liability, there is no general requirement to hold it. In practice most clients, councils, landlords and main contractors will not let you on site or sign a contract without it, so for most trading firms it is essential.
What limit of public liability cover do I need?
Start with your contracts. Public bodies, main contractors and landlords usually state a minimum limit, and some ask for more on higher risk projects. Where no contract sets one, a broker will look at the worst realistic claim your work could cause, such as a serious injury or damage to a large building.
Does public liability cover damage to the property I am working on?
Only in part. Most policies exclude damage to the specific part of the property you are working on, and some cap cover for property in your care. Damage to the rest of the building is normally covered. On contracts, the works themselves need contractors' all risks insurance.
Do my subcontractors need their own public liability insurance?
Most insurers expect independent subcontractors to hold their own cover at a limit at least equal to yours, and expect you to check it. Labour-only workers you direct and supply with materials are normally counted as staff, so they sit under your employers' liability cover instead.
Is public liability the same as products liability?
No. Public liability covers accidents caused by your activities and premises, while products liability covers injury or damage caused by goods after they leave your control. Firms that make, supply or install anything usually need both, and most insurers write them together. See products liability insurance for detail.
Does public liability insurance cover work outside the UK?
Most policies cover temporary business visits abroad, such as attending a trade show, but manual work overseas is often excluded or needs to be agreed in advance. Work in the USA and Canada usually needs specific agreement from the insurer.
What should I do if someone makes a claim against my business?
Tell your broker or insurer straight away and do not admit fault or offer payment. The insurer will investigate, appoint solicitors where needed, and negotiate or defend the claim. Keep incident reports, photographs, witness details and CCTV, as these often decide the outcome.
How do I get a public liability insurance quote?
Request one through this page and you will be put in touch with a broker who places liability risks. Have a description of your work, turnover, wage roll, subcontractor spend, the limit your contracts require and recent claims ready, so insurers can price the risk quickly.
Compare public liability cover for your business
Limits matched to your contracts and terms that fit the work you actually do, arranged by brokers who place liability risks every day.