What insurance does a gas engineer need?

Gas work carries more risk than most trades. One loose union, one missed flue reading, and the damage isn't a scuffed skirting board. Insurance is how you make sure a bad day doesn't end the business, and the right set of covers is smaller and simpler than the brokers make it sound.

What does public liability insurance cover?

Public liability is the core cover for a gas engineer. It pays out if your work injures someone who isn't your employee, or damages their property: a fitting that lets go and floods a kitchen, a customer tripping over your tools, a fire traced back to your work. It typically covers the compensation and the legal costs of defending the claim.

Policies are commonly sold at £1 million, £2 million or £5 million of cover. Those are market conventions, not a recommendation. The right level depends on the work you do and who you do it for: domestic-only engineers often carry £2 million, while commercial contracts frequently specify £5 million before you can get on site. Ask a broker rather than guessing.

Does Gas Safe registration require insurance?

No. Gas Safe registration is about competence, your ACS qualifications and your legal right to work on gas. The Register doesn't ask for proof of public liability insurance, and holding it isn't a condition of registration. That surprises people, and it means the decision to insure is entirely yours.

It shouldn't be a hard decision. Given what gas can do when work goes wrong, trading without public liability cover is a gamble with your house as the stake. And plenty of customers, and almost all letting agents and commercial clients, will ask to see it anyway.

Do you legally need employers' liability insurance?

Yes, if you employ anyone. The moment you take someone on, the law requires employers' liability insurance of at least £5 million from an authorised insurer, under the Employers' Liability (Compulsory Insurance) Act 1969. It covers claims from an employee injured or made ill by the work. You can be fined up to £2,500 for every day you're not properly covered, and £1,000 more for not displaying the certificate. Businesses that only employ close family members are generally exempt.

Job titles don't decide it; the working relationship does. An apprentice counts. A labour-only subbie working under your direction, with your materials, may well count too. If other people work on your jobs in any form, check HSE's guidance before assuming you're exempt.

What other covers are worth having?

• Professional indemnity: covers claims arising from advice, design or specification rather than the physical work. It becomes more relevant once you're specifying systems on commercial jobs.
• Tools cover: theft or loss of tools and your analyser, usually with strict conditions about vans left unattended overnight.
• Van insurance for business use: a policy for social and commuting use won't cover a van used for work, so make sure the class of use matches reality. Consider goods-in-transit cover for boilers and parts.
• Personal accident or income protection: if you're off the tools with a broken wrist, nothing else on this list replaces your income.

What moves the premium?

• The level of cover: £5 million costs more than £1 million.
• Turnover and headcount: more work and more people means more exposure.
• The mix of work: commercial, LPG and anything unusual tends to cost more than domestic servicing.
• Claims history: a clean record keeps prices down, and a claim follows you for years.
• The excess you're willing to carry.

Premiums vary too much by circumstance for any figure here to be useful. Get like-for-like quotes, meaning the same cover level, the same excess and the same declared activities, or the comparison tells you nothing.

What should you check in the small print?

Two clauses catch gas engineers out more than any others. The first is the heat or hot works condition: rules about how you use a blowtorch, keeping an extinguisher within reach, and checking the work area for a set period after you finish. Break the condition and a fire claim can be refused. The second is the activity definition: a generic “plumber” or tradesman policy can exclude gas work entirely, which makes it worthless for most of what you do. Make sure gas work is a declared, covered activity in writing.

Also worth a look: limits on working at height or depth, whether subcontractors are covered, tools-in-van conditions, and whether the policy pays to put right your own defective work. Most don't; they cover the damage it causes, not the rework.

Who will ask for proof of insurance?

Letting agents almost always ask before adding you to their contractor list, usually for the policy schedule showing the cover level and expiry date. Commercial clients and housing associations often set a minimum, £5 million is common, and re-check it every year. Keep a PDF of your current schedule on your phone so the request never holds up onboarding, and diary the renewal date the way you diary ACS.