What is public liability insurance, and do you need it?
Reviewed by Matthew Bartlett, Director, Apex Insurance Brokers Limited · Last reviewed 2026-08-05
If a customer slips on a wet floor in your shop, a passer-by is hurt by your equipment, or you damage a client's home while working there, they can hold your business liable. Public liability insurance exists to meet those claims — both the compensation and the legal costs of defending yourself — without the bill landing on your own finances.
What does public liability insurance actually cover?
A public liability (PL) policy responds when a third party — someone who is not you or your employee — suffers injury or property damage that is your business's fault. Typical claims it deals with include:
- Injury to a member of the public — a visitor trips over a trailing cable at your premises or event.
- Damage to third-party property — a tradesperson cracks a customer's bathroom tiles or floods a floor.
- Legal defence costs — solicitors' fees and court expenses in defending a claim, even one that ultimately fails.
- Claimant costs and compensation — the damages awarded, plus the other side's costs, where you are found liable.
Cover is usually arranged with an indemnity limit — commonly offered as £1m, £2m, £5m or higher — which is the most the insurer will pay for any one claim. The right limit depends on your work, your premises and, often, what your contracts demand.
Is public liability insurance a legal requirement?
No. Unlike employers' liability insurance — which is compulsory under the Employers' Liability (Compulsory Insurance) Act 1969 for most businesses that employ staff — public liability cover is not required by law in the UK.
In practice, though, it is frequently mandatory in other ways. Commercial landlords, local authorities issuing market or event permits, main contractors, and many corporate clients will not let you work or trade without a minimum level of PL cover in place, and will ask to see your certificate. So while the state does not force it on you, the marketplace often does.
Who needs public liability insurance?
If your work brings you into contact with members of the public, or takes you onto other people's property, you are exposed. Businesses that most commonly need it include:
- Tradespeople — builders, electricians, plumbers, decorators and other contractors working in clients' homes and premises.
- Shops, cafes, salons and other premises the public visit.
- Market traders, stallholders and event organisers.
- Consultants, cleaners and mobile services who attend client sites.
- Charities, clubs and community groups that run public activities.
If nobody outside your own team ever visits you and you never attend anyone else's site, your exposure is lower — but that is a narrower category than most business owners assume.
Not sure how much cover you need, or what your contracts require? Apex will find and explain the right policy for your business.
Get a public liability quote →Public liability vs professional indemnity: what's the difference?
These two covers are often confused, but they protect against very different risks. Public liability deals with physical harm — injury and property damage. Professional indemnity (PI) deals with the financial consequences of your professional advice, designs or services going wrong. Many businesses need both.
| Public liability | Professional indemnity |
|---|---|
| Covers injury to the public and damage to their property | Covers financial loss caused by professional mistakes, advice or negligence |
| Physical harm — a slip, a spill, a dropped tool | Intangible harm — a flawed design, a missed deadline, bad advice |
| Most relevant to trades, retail, hospitality and events | Most relevant to consultants, designers, advisers and IT |
| Not legally required (but often contractually required) | Not legally required, but mandated by some regulators and professional bodies |
A quick test: if the harm someone suffers is physical, public liability is the relevant cover. If the harm is financial and flows from your professional work, professional indemnity is what responds. A builder typically needs PL; an architect advising on that same project may need both. Tell us what you do and we will map your real exposures.
What public liability insurance does not cover
It is just as important to know the boundaries. Public liability generally will not respond to:
- Injuries to your own employees — that is what employers' liability insurance is for.
- Faults in a product you have designed, manufactured or supplied — that usually falls to product liability cover.
- Financial loss from professional advice — the domain of professional indemnity.
- Damage to your own tools, stock or premises — covered under commercial property or contents policies.
Because these covers interlock, many businesses hold public liability as part of a wider combined or package policy. A broker's job is to make sure there are no gaps where one policy ends and the next should begin.
How Apex helps
Apex Insurance Brokers is an FCA-authorised broker based in Bristol. We assess your activities, premises and contractual obligations, then source public liability cover — and any related employers', product or professional indemnity cover — at a limit that matches your genuine exposure rather than a guess. If a claim arises, we help you manage it.
Common questions
How much public liability cover do I need?
It depends on your work and, crucially, what your contracts require. Many clients and local authorities stipulate a minimum — often £1m, £2m or £5m. If you regularly work on larger sites or for corporate clients, higher limits are common. We match the limit to your obligations and risk.
Does public liability cover my employees if they are hurt?
No. Injuries to your own staff are dealt with by employers' liability insurance, which is a legal requirement for most businesses with employees. Public liability covers members of the public and other third parties only.
Can I get public liability and professional indemnity together?
Yes. Many businesses need both, and they are frequently arranged within a single package policy. Speak to Apex and we will confirm which covers apply to you and put them in place without overlap or gaps.
Apex Insurance Brokers Limited is authorised and regulated by the Financial Conduct Authority (FRN 724952). This guide is general information, not advice on a specific policy or a substitute for your policy wording.