Public liability insurance for a UK mobile car detailer typically costs £120 to £300 per year for £1m of cover. It pays out when you damage a customer's vehicle, property, or person while working — which, when you're polishing £30,000 cars in a customer's driveway, is the single biggest financial risk you carry.
This guide covers how UK detailing insurance actually works: what's covered, what cover level you need, the real-world scenarios premiums exist for, the brokers UK detailers tend to use, and the mistakes that void policies. If you're starting a mobile car detailing business in the UK, sorting insurance is the second thing you do, after registering with HMRC. Don't take a single booking without it.
What public liability insurance actually covers
Public liability (PL) is third-party cover. It pays out when your work damages someone else's property or injures them. For a mobile detailer, that means a customer, their vehicle, their home, their driveway, or anyone passing by while you're working.
Three categories matter most:
- Vehicle damage. Paint correction gone wrong, swirl marks from incorrect technique, ceramic coating that fails or stains, water damage to electronics or interiors, scratches from grit in a wash mitt.
- Property damage. Chemical run-off staining a customer's driveway, water damage to a garage floor, snow foam etching a polished concrete surface, machine polisher cable causing trip hazards.
- Bodily injury. A customer slipping on water you've put down, your pressure washer hose tripping a passer-by on a public pavement, a child touching a hot polisher pad.
What public liability does not cover: damage to your own kit, theft of your equipment, your van, your stock of products, or your loss of income if you're injured yourself. Those are separate policies (tools-in-transit, van insurance, personal accident, income protection).
How much cover you actually need
Three levels are standard in the UK: £1m, £2m, and £5m.
£1m is the floor. It's enough for a solo detailer working on private vehicles up to roughly £75,000. Most premium one-off claims stay well below this number. Insurance brokers typically lead quotes with this level.
£2m becomes worthwhile if you regularly work on higher-value cars (Porsche, Range Rover Sport, Bentley, AMG) or if you invoice commercial customers. Most dealerships, leasing companies, and corporate fleet contracts require £2m as a contractual minimum.
£5m is unusual unless a specific contract demands it — some larger commercial sites, prestige brand main dealers, and fleet management companies do. The premium difference between £2m and £5m is usually small, so if you're already at £2m and one big customer asks, it's an easy bump.
Real scenarios — what claims actually look like
Scenario 1: Polisher slip on the bonnet
You're correcting a black BMW paintwork. The polisher catches an edge, leaves a deep scratch. Bonnet repaint and blend cost £1,800. Your PL policy pays the £1,800 minus your excess (typically £250–£500). You pay the excess. Premium might rise next renewal.
Scenario 2: Water ingress into electronics
You're cleaning the engine bay of a 2022 Mercedes. Water gets into the wrong connector. Customer's car won't start the next morning. Diagnostic and repair cost £2,400. Covered. This is one of the most common claims for mobile detailers.
Scenario 3: Driveway staining
You use an iron remover on a wheel. The runoff sits on the customer's pale block-paved driveway and stains it. Pressure-washing won't lift it. Customer wants the driveway re-laid: £3,200. PL covers the third-party property damage. Your policy may exclude run-off claims unless specifically included — check the wording.
Scenario 4: Tripping hazard
Your hose runs across the pavement outside a customer's house. A pedestrian trips and breaks a wrist. Personal injury claim against you for £15,000. PL covers it. Your premium goes up at renewal.
None of these are rare. Every one of them happens to UK detailers every month. PL is the difference between a stressful renewal and a closed business.
Tools-in-transit cover
If your kit is worth more than a few hundred pounds, tools-in-transit cover is worth adding. It pays out when equipment is stolen from your van overnight or during the day. Detailing kit — machine polishers, pressure washers, ceramic coating supplies, vacuums — is a frequent van-break-in target because it's portable and resells.
Typical add-on cost: £40 to £100 per year for £3,000–£5,000 of cover. Worth it.
Motor trade vs standard cover
Most solo mobile detailers don't need motor trade insurance. You work on parked vehicles, the customer drives the car to and from you (or you visit them), and you don't drive customers' cars on public roads.
Motor trade cover becomes necessary if you regularly move customers' vehicles on public roads — for example, picking up a car from a dealership, driving it to your unit for correction work, then returning it. If that's your workflow, you need road risk cover under a motor trade policy. If it's not, save the money.
Where UK detailers actually buy insurance
A handful of UK brokers specialise in detailing and valeting cover. They tend to price more accurately than generic small-business insurers because they understand what we actually do (mobile, paint correction, ceramics, products used).
Names that come up regularly in UK detailing communities: Tradesman Saver, Constructaquote, Westshield, Hiscox, and Insure The Box's trade arm. There are others. The right choice depends on your specific work mix — correction-heavy detailers tend to find different prices to maintenance-only operators.
Get three quotes. Read the wording before paying. Pay attention to whether your specific processes (chemical use, ceramic coating, pressure washing on driveways) are listed as covered or excluded.
Common mistakes UK detailers make with insurance
- Buying generic small-business PL and assuming it covers detailing. Some generic policies exclude vehicle work entirely. Always declare the specific trade.
- Not declaring ceramic coating or paint correction work. Some insurers price these higher; if you don't declare and a claim involves them, the policy may be void.
- Skipping tools-in-transit. One overnight van break-in can cost more than ten years of premiums.
- Buying minimum £1m and then taking on commercial work. Commercial contracts almost always require £2m. Your £1m policy fails the contract requirement and you can't legally bill the customer.
- Letting the policy lapse. No grace period. A single uninsured day with one bad claim is the end of the business.
- Not telling the insurer about a previous claim. Non-disclosure voids future claims, even unrelated ones.
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Visit the DetailBook homepage →This article is general guidance for UK car detailing businesses and does not constitute insurance, legal, or financial advice. Insurance products and pricing change. Always read full policy wording, declare your specific trade and processes accurately, and speak to an FCA-regulated broker before buying cover.