Boiler service cost: the average boiler service cost and boiler servicing cost in Great Britain, how much does a boiler service cost, boiler service cost uk and boiler service london cost figures, what an annual boiler service buys, and where a commercial boiler service cost, an lpg boiler service cost and a back boiler service cost differ

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• Gas safety certificate cost
• Gas safety check cost
• Landlord gas safety certificate cost
• Oil boiler service cost

How gas safety and boiler services works

1. Separate the service from the safety check. A landlord must have every gas appliance and flue checked annually by a Gas Safe registered engineer and give the tenant a record of it. A service is the manufacturer's maintenance schedule for the appliance. A quote for one is not a quote for the other, and a combined visit should say what it includes for each.
2. Count the appliances, not the property. A boiler, a gas fire, a hob and a flue in the same house are four things to inspect. Most quotes assume one appliance and price extras separately, so a property with a fire in the lounge and a gas hob costs more than the headline number for the same visit.
3. Ask what the service actually covers. A full service follows the manufacturer's schedule: casing off, components checked, burner and heat exchanger inspected and cleaned as required, seals and flue checked, gas pressure and combustion tested, and the results written down. A visual check and a flue gas reading is not a service, however quickly it is done.
4. Fuel and appliance type change the price. Oil and LPG appliances are a different trade and a different registration, and a back boiler behind a fire takes longer to reach than a modern wall hung combi. Commercial appliances are priced per appliance and by size, and the certificates carry different codes.
5. Book both together and get one visit. Where a property needs both, one engineer doing both in one attendance is almost always cheaper than two visits. Ask for the combined price and for what the record and the service report will each say.

Paperwork and evidence

Common questions

Is an annual boiler service a legal requirement?

Not for a homeowner. Manufacturers require it to keep a warranty valid, and landlords must separately have an annual gas safety check by a Gas Safe registered engineer, which is a legal duty.

What is the difference between a service and a safety check?

A safety check confirms the appliance is safe and produces a record for the duty-holder. A service is maintenance to the manufacturer's schedule. Many engineers do both in one visit and issue both documents.

Does a service include repairs?

No. A service diagnoses; parts and repairs are quoted separately. Ask what the callout covers if a fault is found on the day.

How long does a service take?

Usually under an hour for a straightforward domestic boiler, longer for a back boiler, an older appliance or a property with several appliances.

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