How Much Public Liability Insurance Does a Tradesman Need?

What determines how much public liability cover you need?

Your client list, not your trade. The limit that clears your most demanding contract is the limit you buy, because you cannot hold two policies for two types of job.

Start with your biggest client, not your average job

Buying for the average job is how trades get locked out of the good work. One tender asking for £5 million turns a cheap policy into a lost contract.

Look at the work you want next year rather than the work you did last year. The limit has to be in place before you bid, not after you win.

Why the trade matters less than you think

Trade drives the premium far more than it drives the limit. A landscaper on a council framework needs the same £5 million as the groundworker beside them.

Where the trade does matter is in worst-case severity. Anything involving height, heat, water or power can produce a claim far larger than the job value.

What a serious injury claim can reach

A catastrophic injury claim is not paid on the accident alone. It is paid on a lifetime of lost earnings, care and adapted housing.

That is why £1 million stopped being a sensible ceiling. A single life-changing injury can absorb it before the legal costs are counted.

Property claims behave differently. They are usually smaller but they arrive far more often, which is why the limit protects you against the rare event rather than the routine one.

Which clients ask for which limit?

Domestic clients rarely ask at all, councils and NHS trusts usually specify £5 million, and main contractors set their own threshold in the subcontract. Infrastructure work starts at £10 million.

Domestic clients and private householders

Householders almost never name a figure. They ask whether you are insured, and a certificate at any level usually satisfies them.

That is why a sole trader public liability policy doing kitchens and bathrooms can sit comfortably at £2 million for years.

Local authorities, schools and nhs trusts

Public sector buyers work from standing terms, and those terms name a number. £5 million is the level most councils, schools, NHS trusts and social housing providers write into their contracts.

There is no negotiating it down. The requirement sits in the framework agreement and the buyer has no authority to waive it for you.

Expect the certificate to be checked rather than glanced at. Procurement teams look at the limit, the expiry date and whether the trade description matches the work you are bidding for.

Main contractors and pre-qualification

Main contractors check cover at pre-qualification, alongside accreditations like CHAS and Constructionline. A shortfall on the limit fails the questionnaire before anyone reads your rates.

The larger the principal contractor, the higher the bar. A bricklayer subcontracting to a national housebuilder is usually asked for more than one working directly for homeowners.

Infrastructure, rail and utilities

Work near rail, highways, water and power comes with its own tier. Damage there is measured in network downtime, not in repair costs.

Those clients set high limits because a single incident can stop a service. The limit is a condition of access rather than a judgement on your competence.

Is £1 million enough for a tradesman?

It is the floor rather than the answer. £1 million still clears small private work, but it fails most commercial terms and leaves no headroom on a serious injury claim.

Where £1 million still works

Low-value domestic jobs with little public exposure sit inside it. Think a handful of private customers a month and no site work.

Even then it is a starting position rather than a settled one. The moment you take on a commercial client, it stops being enough.

Where £1 million locks you out

It fails almost every tender, framework and subcontract in the country. It also falls short of what most trade schemes expect, which is why whether sole traders need public liability is really a question about the limit, not the policy.

The cost of moving up is small and the cost of being turned away is not. That trade-off is the whole argument for a higher limit.

It also dates you in front of a client. A £1 million certificate now reads as a business that has not reviewed its cover in a decade, whether or not that is fair.

When is £2 million the right limit?

£2 million is the practical standard for UK trades. It handles domestic work, light commercial work and most private client contracts without pricing you out.

The de facto trade standard

Most trade policies are quoted at £2 million as standard because it satisfies the widest range of clients for the smallest jump in premium.

It is the level a broker will put in front of you unless you say otherwise. For a busy domestic trade, it usually stays right for years.

Trade schemes and membership bodies pitch their expectations at the same level. Holding £2 million keeps you inside almost every private sector requirement without a conversation.

Domestic plus occasional commercial work

£2 million covers the mixed workload most trades actually have. Private jobs during the week, a shop fit or an office refurb every few months.

Check the paperwork on the commercial ones. A managing agent or a small builder acting as principal contractor may still specify a higher figure.

Who actually needs £5 million?

Anyone working for the public sector or under a main contractor. £5 million is the most commonly demanded contractual level in UK construction and maintenance.

The most commonly required contract level

If your work touches councils, schools, hospitals or housing stock, assume £5 million. It appears in so many standing terms that trades bidding for that work simply hold it as a baseline.

The same applies to most construction site subcontracting. The principal contractor sets one requirement and applies it to every trade on the job.

Social housing and framework contracts

Repairs and maintenance frameworks are long-term and heavily conditioned. Cover levels are checked at award and again at every renewal of the framework.

Occupied properties raise the stakes further. CDM 2015 applies to domestic work too, and client duties pass to the contractor where there is only one.

Employing staff and working at height

More people on site means more chances for something to go wrong. A scaffolder with a crew is a different risk from a one-person business, whatever the turnover says.

Remember that staff injuries are a separate policy. Employers’ liability is compulsory from your first hire, at a legal minimum of £5 million.

Do you ever need £10 million?

Only when a client demands it. £10 million is an access requirement for infrastructure, rail, utilities and large venue work rather than a level any trade chooses voluntarily.

Infrastructure, rail and utilities adjacency

Working beside a live railway, a trunk road or a substation puts you next to assets worth millions. That is where £10 million of public liability stops being excessive.

You do not need to be the principal contractor to be asked. A single day of work inside the boundary can carry the same condition as the whole scheme.

Large venues and high footfall

Stadiums, shopping centres, transport hubs and event sites all measure exposure by the number of people passing through. One incident can involve many claimants at once.

Most small trades will never see this level. If you are asked for it, the requirement will be in writing and there will be no room to move.

Some insurers write £10 million on request rather than as a standard option. Give your broker notice rather than expecting to buy it online the night before a site induction.

What does it cost to step up a limit?

Less than most trades expect. SimplyQuote’s own public liability cost guide puts a £1 million policy at around £106 a year against roughly £140 a year at £5 million.

The step costs less than the job you lose

On those figures, five times the cover costs about a third more in premium. What public liability insurance costs in the UK sets out how the rest of the premium is built.

Compare that against one lost tender. A single council job usually pays for the difference several times over.

Why the limit is not the main price driver

Your activities, turnover and claims history move the premium far more than the limit does. Tradesman insurance pricing follows the same pattern across the whole trade package.

Insurers price severity as well as frequency. Most claims settle well below £1 million, so the extra layers cost proportionally less than the first one.

Where the cost curve steepens

The jump from £5 million to £10 million is proportionally bigger than the earlier steps. By that point you are buying capacity for rare, very large losses.

Buy it when a contract requires it rather than in advance. Cover you never need is still cover you pay for every year.

The exception is a business that bids constantly. If half your tenders ask for the higher figure, carrying it year round costs less than adjusting the policy every few months.

How do you check and change your limit?

Read the contract before you price the job, then set the limit to match. Insurers will increase cover mid-term, usually for an adjustment premium and a small fee.

Reading the contract before you quote

The insurance clause is usually buried near the indemnity provisions. Look for the required limit, whether it is any one occurrence, and whether the client wants to be named.

Public liability is normally written for any one occurrence, while products liability is often written in the aggregate. How public liability works explains why that difference matters on a big job.

Increasing cover mid-term

You do not have to wait for renewal. Ask for a mid-term adjustment and get the new certificate before the higher-value work starts.

Never start on the strength of a promise to sort it out later. Cover cannot be backdated, so the gap stays a gap forever.

Review the limit at every renewal as well. A business that has added staff, turnover or a new type of client has changed its exposure whether or not it noticed.

Trade schemes and accreditation

Scheme membership is the other reason to keep cover live. Gas Safe registration renews annually, and working on gas unregistered is a criminal offence.

Bricklayers, groundworkers and general trades face the same annual checks through their own bodies, as the cover bricklayers need sets out.