Public Liability Limits for Cleaning Contracts Explained

Most UK cleaning contracts specify a public liability limit of between £1 million and £5 million. Small domestic and sole-trader work is usually happy with £1m or £2m. Once you move into offices, schools, retail units, managing agents and facilities work, £5 million becomes the everyday expectation. £10 million is asked for by a narrower group of buyers: NHS trusts, airports and rail, large housing associations, universities, some local authorities and national facilities management firms who pass their own client requirements down the chain.

The limit in a contract is not a measure of how careful you are. It is the buyer's way of making sure that if something goes badly wrong on their site, there is enough money behind your business to deal with it without them being dragged into it. That is why the number is often set by a procurement template rather than by anyone who has looked at what cleaning actually involves, and it is why a two-person office cleaning firm can find itself asked for the same £10m limit as a groundworks contractor.

This guide explains what a limit really covers, how the common limits compare, what different types of cleaning work tend to need, and the practical steps to take when a tender asks for more cover than you currently hold. If you want the cover detail alongside it, our contract cleaners insurance page sets out how these policies are usually built.

What does a public liability limit of indemnity actually mean?

The limit of indemnity is the most your insurer will pay for a single claim made against you by a third party, whether a client, a member of the public, a tenant or a passer-by, for injury or property damage you are legally liable for. It normally includes the legal costs of defending the claim, and those costs alone can be substantial even when a claim is eventually dropped.

Two details matter more than most people realise:

• "Any one claim" versus "in the aggregate". Public liability is usually written on an "any one claim" or "any one occurrence" basis, meaning the full limit is available for each separate incident during the policy year. Some sections, pollution or products for example, may be capped in the aggregate, which means the limit is the total for the whole year however many claims arise. A contract asking for "£5m any one occurrence" will not be satisfied by £5m in the aggregate.
• Sub-limits inside the policy. The headline number rarely applies to everything. Damage to property worked upon (harm to the actual item or surface you were cleaning, such as a carpet that shrinks or a stone floor that etches) is often subject to a much lower inner limit, and in some wordings is excluded altogether. The same goes for loss of keys, damage to underground services, and damage caused by heat or water application. We cover this gap in detail in our guide to treatment risks and standard public liability.

There is also the excess: the first part of each claim you pay yourself. A £5m limit with a high property damage excess can be less useful day to day than a £2m limit with a modest excess, because most cleaning claims are small breakages and marks, not catastrophes. If you have not seen how the smaller claims add up, our guide on the true cost of a cleaning claim is worth ten minutes.

£1m, £2m, £5m or £10m: how the common limits compare

A point worth making to nervous clients: moving from £2m to £5m does not usually double your premium. Insurers price mainly on your activities, turnover, wage roll and claims history, which is to say what you do and how much of it. The limit is a factor, but a smaller one than most buyers assume. If a contract worth real money hinges on the limit, it is nearly always worth asking us to quote both.

How do contract buyers decide what limit to ask for?

In practice, four things drive the number:

• The buyer's own contracts. A facilities management company cleaning a bank's head office will be required to hold, say, £10m, and will push the same requirement onto every subcontractor so there is no weak link. This is the single most common reason a small firm gets asked for a figure that looks disproportionate.
• The value and visibility of the site. A glass-fronted atrium, a listed building, a data centre, a hospital ward or a school full of children all raise the potential consequences of a mistake. Higher footfall means a greater chance that a wet floor injures someone who is not an employee.
• Procurement templates and insurers' advice. Many public bodies use a standard schedule of insurance requirements across all suppliers, from window cleaners to construction. Nobody sat down and decided cleaners specifically need £10m.
• Worst-case injury cost. Serious injury claims involving long-term care and loss of earnings can run into seven figures once damages, care costs and legal fees are added together. A buyer setting a £5m or £10m limit is thinking about that scenario, not about a scratched desk.

Could a cleaning claim really reach millions?

Most cleaning claims are modest. The ones that are not tend to share a pattern: the cleaning itself was routine, but the consequences spread.

• A visitor slips on a freshly mopped hard floor in a busy reception, hits their head, and is left unable to return to work. Damages for care, adaptations and lost earnings over decades sit in a different bracket to a broken lamp.
• A tap or hose left running overnight in a fourth-floor kitchenette floods three floors of a let office building. The claim is not just the carpets. It is IT equipment, drying and reinstatement, and the tenants' loss of use of the space.
• A pressure washer used near a client's electrical intake or a window cleaner's pole contacting an overhead line escalates instantly from property damage to serious injury.
• A cleaning chemical decanted into an unlabelled bottle is used by a client's staff member, causing burns and a regulatory investigation. Our plain-English guide to COSHH covers the controls that stop this happening.

The point is not to frighten anyone. It is that the limit exists for the tail end of the distribution, and that tail is what a buyer is buying protection from.

What limit does your type of cleaning usually need?

Every contract differs, but these are the patterns we see across cleaning businesses:

• Domestic cleaning and housekeeping: £1m to £2m satisfies almost all private clients, though agencies and introducer platforms often set £2m as their floor. See domestic cleaners insurance for what else these policies typically include.
• Office and commercial cleaning: £2m for small independent premises, £5m once managing agents, landlords or national tenants are involved. Our commercial and office cleaning insurance page explains the usual structure.
• Contract cleaning with employees across multiple sites: £5m as standard, with £10m needed for some frameworks. Employers' liability sits alongside it.
• Window cleaning: £1m to £2m for domestic rounds, £5m for commercial blocks and anything at height. If you work above ground floor level, check the height and access conditions on your window cleaners insurance.
• Carpet, upholstery and hard floor cleaning: the limit matters less than the treatment risk and property worked upon cover on your carpet and upholstery cleaners insurance, because the likely claim is the item itself.
• End of tenancy work: £2m is common, with agents increasingly asking for £5m plus loss of keys cover.
• Pressure washing and exterior cleaning: £5m is often required on commercial forecourts and car parks, partly because of overspray, run-off and surface damage exposures.
• Specialist and deep cleaning (biohazard, post-incident, kitchen ducting): usually £5m upwards, and the activity description matters as much as the number.

What to do when a tender asks for more cover than you hold

Do not withdraw and do not tick the box hoping nobody checks. Buyers verify certificates, and a false declaration in a tender is a contractual problem as well as an insurance one. Work through this instead:

1. Read the exact wording. Is it "£5,000,000 public liability" or "£5,000,000 any one occurrence, unlimited in the period"? Does it also demand employers' liability of £10m, professional indemnity, or cover for damage to property in your care, custody and control? Copy the clause out in full before you ask anyone to price it.
2. Check whether the requirement is conditional on award. Many tenders accept a broker letter confirming that the required limits can be put in place if the contract is won. That is normal and we provide it regularly.
3. Ask us to quote the higher limit. Increasing from £2m to £5m, or £5m to £10m, is often straightforward once the insurer understands the work. Send the tender clause with your contract cleaners insurance enquiry so it is priced against the actual requirement rather than a guess.
4. Look at the additional clauses, not just the number. Tenders commonly require indemnity to principal (extending your cover to the client in respect of your work), a waiver of subrogation (your insurer giving up the right to recover from the client), a cross liability clause, or 30 days' notice of cancellation. These have to be checked against the policy wording, and some are simply not available from every insurer.
5. Negotiate if the limit is disproportionate. If you clean a village hall twice a week and the council template demands £10m, it is reasonable to ask whether £5m is acceptable for this scope. Buyers do sometimes flex. Put the request in writing early, not after award.
6. Get the certificate right. The legal entity name on the certificate must match the name on the tender, and the described business activities must cover everything you will do on site. A certificate that says "office cleaning" will be queried if the contract includes external window cleaning and jet washing.

The other covers a cleaning contract usually asks for

Public liability is rarely the only line in the insurance clause. Expect some combination of:

• Employers' liability if you have any staff. The Employers' Liability (Compulsory Insurance) Act 1969 requires a minimum of £5 million, most policies are issued at £10 million, and the HSE can fine up to £2,500 for each day you trade without valid cover. Our guide to employers' liability for cleaning companies covers who counts as an employee, including casual and zero-hours staff. If the difference between the two liability covers is still fuzzy, read public liability versus employers' liability.
• Loss of keys and keyholding cover where you hold access devices. Replacing a suited master key system or reprogramming fobs across a block is expensive, and standard property damage wording may not reach it. See loss of keys insurance and our keyholding risks guide.
• Professional indemnity where you advise on specifications, TUPE, cleaning regimes or infection control, or where a facilities contract includes a service level guarantee. Details on professional indemnity for cleaning and facilities companies. Watch the retroactive date, the earliest date of work the policy will respond to, because a new policy may not cover advice you gave two years ago.
• Tools, equipment and stock, sometimes required so the buyer is not left without machinery mid-contract. See tools and equipment insurance for cleaners.

Checklist before you sign a cleaning contract

• Copy the full insurance clause into a document and tick each requirement off against your schedule, not your certificate summary.
• Confirm the basis of the limit: any one claim or occurrence, versus in the aggregate.
• Check the property worked upon and treatment risk sub-limits against the value of what you handle.
• Check the care, custody and control position for client property you move, store or hold keys to.
• Confirm the excess for property damage and make sure you could fund it on every site you run.
• Make sure every activity in the specification appears in your policy's business description, including any at height, external, pressure washing or specialist work.
• Identify whether you use labour-only subcontractors, meaning workers you supply and supervise who do not bring their own materials or tools, and confirm they are treated as employees under the policy rather than left uncovered.
• Ask whether indemnity to principal, waiver of subrogation and cancellation notice periods can be granted in writing.
• Diarise your renewal date against the contract term so cover never lapses mid-contract, and send the new certificate to the client automatically.
• Tell your broker about any change in activities, sites, turnover or staff numbers during the year. Under the duty of fair presentation in the Insurance Act 2015, commercial customers must disclose everything a prudent insurer would want to know; getting this wrong can reduce or void a claim.

Choosing your limit when no contract specifies one

If you work mainly for private clients, nobody is going to hand you a number. Set it by asking what the worst realistic incident on your rounds looks like. A domestic cleaner working alone in modest houses is in a different position to a team cleaning a busy dental practice, a nursery or a hotel kitchen. Consider the number of people around while you work, the value of the building and its contents, whether you use water or heat, and whether you work at height.

In our experience £2m is the sensible floor for anyone entering client premises for money, and £5m is the pragmatic choice for any business that wants to bid for commercial work without re-papering its insurance every time a tender lands. You can compare the full range of covers on our cleaning insurance hub, or browse the rest of our cleaning business guides for the practical side of claims and site risk, including what to do in the first hour after accidental damage.

Getting the right limit in place

Limits are easy to change and awkward to get wrong halfway through a contract. If you have a tender on your desk with an insurance schedule you are not sure about, send it over with your details and we will tell you plainly whether your current cover meets it and what the higher limit would look like. Our questionnaire only asks the questions that apply to cleaning businesses, so you are not answering irrelevant trade questions to get a sensible answer.

Start with a contract cleaners insurance quote, or use the general enquiry form if your work spans several types of cleaning. This guide is general information rather than personal advice. Cover always depends on the policy wording, the insurer's acceptance and your own circumstances, so talk it through with a broker before you commit to a contract.