What Factors Affect the Cost of Tradesman Insurance?
The price of a trade policy is built from your trade, your turnover, your wageroll, the limits you buy and your claims record. An underwriter takes a rate for the risk your trade represents and applies it to the size of your business.
Nothing about a tradesman insurance quote is arbitrary, even when two quotes for the same van and the same work land miles apart.
This guide walks through the inputs one at a time, in roughly the order an underwriter meets them. It is about what the price is made of rather than what to do about it.
Your premium is built from five inputs: your trade, your turnover, your wageroll, the indemnity limits you choose and your claims record. Two businesses with the same van and the same work can land on very different prices once an underwriter applies their trade rate to your turnover. Knowing which lever moves the price most helps you judge whether a quote is genuinely competitive or just cheap.
Get a tradesman insurance quote and see how the price breaks down for your trade.
- How does an insurer build a tradesman insurance premium?
- Why does your trade change the price so much?
- How much does turnover move the premium?
- What does employing people do to the calculation?
- Why does the indemnity limit you choose change the price?
- How do claims and enforcement history feed into the rate?
- Which activities push you into a higher rating band?
- What else sits inside the quote that you never see?
- Frequently asked questions (FAQs)
How does an insurer build a tradesman insurance premium?
An insurer starts with a rate for your trade, applies it to a measure of your size, then adjusts for limits, claims and the specific work you declare. Tax and any credit charge go on last.
The base rate and the exposure it is applied to
The base rate comes from claims data for trades like yours. It is the insurer’s view of how often your kind of work goes wrong and how much it costs when it does.
That rate needs something to bite on, which is where turnover and wageroll come in. SimplyQuote’s tradesman cost guide puts overall annual spend across the trades at £200 to £1,200.
Where Insurance Premium Tax sits
Insurance Premium Tax is charged at 12% and is already inside the figure you are quoted. It is not an optional extra and it is not negotiable.
It also behaves differently from VAT, because a business cannot reclaim it. Every quote you compare carries the same 12% on the same base.
Any instalment charge is added after that, which is why a monthly figure multiplied by twelve rarely matches the annual price shown next to it.
Why does your trade change the price so much?
Trade is the single largest input because it sets the base rate everything else is applied to. The gap between a decorator and a scaffolder is wider than any other factor in the quote.
How insurers band trades by claims history
Underwriters group trades into bands built from years of claims data. Height, heat, water, power and the value of what sits below you are the things that push a trade up a band.
A tree surgeon and a domestic cleaner sit at opposite ends of that scale, and the difference shows up before a single other question is asked.
What the published ranges look like
SimplyQuote’s own public liability cost guide publishes annual figures by trade at £2 million of cover, which is the clearest picture of the banding in practice.
| Trade | Annual cost at £2m public liability | What sits behind the rate |
| Domestic cleaner | £50 to £80 | Low-value equipment, little height, no hot work |
| Plumber | £110 to £170 | Water damage exposure in occupied property |
| Electrician | £120 to £180 | Fire and injury exposure, occasional work at height |
| Roofer | £180 to £300 and above | Sustained work at height over other people’s property |
Source: SimplyQuote public liability cost guide.
Why your job description matters more than your trade title
Insurers rate what you do, not what you call yourself. A roofer on new build is a different risk from one stripping and replacing slate on an occupied terrace.
The same split runs through every trade. What insurance roofers need turns on the mix of work rather than the job title on the van.
How much does turnover move the premium?
Turnover is the main exposure measure for public liability, so the premium tracks it fairly closely. More work means more sites, more clients and more chances for something to go wrong.
Turnover as the exposure base
A rate per £1,000 of turnover is the usual mechanic. Double the turnover and you roughly double the amount the rate is charged on, before any other adjustment.
That is why insurers ask for a projection rather than last year’s figure. The policy is pricing the year ahead, not the one behind you.
Materials bought on the client’s account usually sit outside the declared figure. Labour-heavy turnover and materials-heavy turnover of the same size are not the same exposure.
What three worked quotes show
Money.co.uk publishes worked quotes from its own engine, which shows the effect of size more honestly than any average would.
| Example business | Cover quoted | Published quote | What changed |
| 1 employee, £50,000 turnover | £1m public liability | £6.18 a month | The baseline |
| 3 employees, £100,000 turnover | £2m public liability plus £10m employers’ liability | £12.22 a month | Staff added, turnover doubled, limit stepped up |
| £250,000 turnover with contract works | Full trade package | £66.88 a month | Turnover again, plus the works themselves insured |
Source: money.co.uk tradesman insurance quotes.
What does employing people do to the calculation?
Taking anyone on adds a compulsory employers’ liability section priced on your wageroll. It is a second exposure measure sitting alongside turnover, not a flat fee per head.
Wageroll rather than headcount
Employers’ liability is rated on what you pay out in wages, split by the kind of work each person does. Swoopfunding puts the range at roughly £60 a year for one office worker up to about £750 for five trade employees, and employers’ liability cover is compulsory from the first hire.
The statutory minimum is £5 million, though most insurers issue £10 million as standard. Trading without the cover carries a penalty of £2,500 for every uninsured day.
How labour-only subcontractors are counted
A labour-only subcontractor who works under your direction with your materials is usually treated as an employee for rating purposes. Their pay goes into the wageroll you declare.
A bona fide subcontractor with their own tools, methods and insurance is generally not. The difference between employers’ and public liability is where that distinction gets decided.
Why does the indemnity limit you choose change the price?
A higher limit means the insurer is exposed to a bigger single loss, so the rate rises with it. The rise is real, but it is much flatter than the jump in the headline number.
What the step between limits looks like
SimplyQuote’s cost guide puts £1 million of public liability at roughly £106 a year and £5 million at roughly £140. The cover multiplies by five while the price moves by about a third.
| Indemnity limit | Who typically asks for it | Published annual cost |
| £1 million | Domestic sole traders, now widely treated as the bare minimum | Around £106 |
| £2 million | The practical standard across most trades | Between the two figures published |
| £5 million | Councils, NHS trusts, schools, social housing and main contractors | Around £140 |
| £10 million | Infrastructure, rail and utilities adjacency, large venues | Not separately published |
Sources: SimplyQuote public liability cost guide, ABI guidance on indemnity limits.
Why the step is not proportional
Most claims are small. The extra layer between £1 million and £5 million is rarely touched, so the insurer charges relatively little for it.
That is why £10 million of cover costs far less than ten times a £1 million policy, and why the limit is a weak lever on the total price.
How do claims and enforcement history feed into the rate?
Past claims are the strongest single predictor an underwriter has, so they carry weight out of all proportion to their size. Enforcement action is read the same way.
The lookback window
Most insurers ask about the last three to five years and price on what they find. A claim stops counting once it falls outside that window, though it may still need declaring if the question is asked.
Fault is not always the deciding factor. A claim made against you sits on the record whether or not it was ever paid.
Notified incidents that never became claims count too. Underwriters read them as a picture of how often something goes wrong on your jobs.
What enforcement action signals
Prohibition notices, improvement notices and prosecutions tell an underwriter something about how a site is run. HSE construction guidance sets the standard those notices are measured against.
Health and safety fines are unlimited in both courts and banded by turnover. A bricklayer with a clean record and documented method statements presents very differently from one without.
Which activities push you into a higher rating band?
Height, heat, asbestos and excavation are the four that move a quote hardest. Each of them turns a routine job into one where a single incident can be catastrophic.
Working at height and hot works
Height changes both the injury severity and the damage below. Insurers usually ask for a stated maximum working height and rate against it.
Hot works bring fire into an occupied building, so they are commonly conditioned rather than simply priced. Fire watch periods and clearance distances often appear as policy conditions.
Asbestos, excavation and demolition
Asbestos is usually excluded outright unless you hold the right licences and declare the work. HSE asbestos guidance governs who may do what, and insurers follow it closely.
Excavation depth and demolition are treated the same way. Both create exposure to services, neighbouring structures and collapse that ordinary trade rates do not contemplate.
Insurers often set a stated maximum depth in the same way they set a maximum height. Going beyond it puts the job outside the terms you were rated on.
Undeclared work
Anything left off the schedule is unrated, which means it is also uninsured. A plumber who occasionally takes on a bit of roofing has changed the risk without changing the policy.
That is the mechanism behind most declined claims rather than any exotic exclusion. What a trade policy covers is defined by the activities on the schedule.
What else sits inside the quote that you never see?
Postcode, time in the trade, the excess and how you choose to pay all sit in the final figure. None of them outweighs trade and turnover, but together they explain most of the remaining gap.
Postcode and where you work
Theft rates, property values and local claims patterns all vary by area. Insurers usually ask for a home postcode and a main working area, and rate against both.
Higher property values raise the cost of the damage you might cause, which feeds through into public liability pricing rather than into the tools section.
Time in the Trade
Years of experience act as a proxy for competence when there is no claims record to read. A newly qualified electrician starts without the history that would otherwise argue in their favour.
Age itself is rarely rated the way it is in motor insurance. Time doing this work, and time trading under the same business name, are the variables that matter.
A career changer who has retrained starts the clock again on the new trade. The years spent in the old one count for very little in the new rating band.
Excess and payment basis
The excess you accept changes how many small claims the insurer expects to pay, so it moves the premium directly. Each section can carry its own figure.
How you pay changes the total as well, because monthly instalments are a credit agreement rather than a discount.
Which? research on car and home policies puts typical APRs for monthly payment at around 21 to 23%.
That research covers general insurance rather than trade cover, and no trade insurer publishes an APR of its own. The charge still lands on top of the same underwritten premium.
Frequently Asked Questions (FAQs)
Your trade, because it sets the base rate every other figure is applied to. Turnover and wageroll then decide how much of that rate you pay.
The two trades sit in different claims bands. Fire, shock and work at height give electrical work a different loss profile from bench and fitting work.
It does, through theft rates, local claims patterns and property values. Most insurers rate both your home postcode and the area you mainly work in.
No, the 12% is already inside the price you are shown. Unlike VAT, a business cannot reclaim it.
On wageroll rather than headcount, split by the type of work each person does. Two firms with three staff each can pay very different amounts.
Most insurers look back three to five years. Once a claim falls outside that window it stops driving the price, though you may still be asked to declare it.
No. Published figures put £1 million at around £106 a year and £5 million at around £140, so five times the cover is nowhere near five times the price.
The policy prices the year ahead. A projection that turns out well short of reality can be adjusted at renewal or challenged at a claim.
Yes, every activity belongs on the schedule. Work that was never declared was never rated, and it is generally not covered either.
It raises both the chance of injury and the severity of a fall, so it is rated. Insurers usually ask for a maximum working height and price against that figure.