How much does a boiler service cost in the UK?
A boiler service costs £70 to £130 in the UK, typically around £90 for a service. Prices reviewed June 2026.
A one-off annual gas boiler service in the UK usually costs £70 to £130, with most people paying around £90. A landlord service with a gas safety certificate (CP12) sits higher, at roughly £110 to £160.
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Boiler service cost breakdown
What a boiler service typically costs, by option:
| What you need | Typical UK cost |
|---|---|
| Standard annual service | £70 to £120 |
| Landlord service + gas safety certificate (CP12) | £110 to £160 |
| Service on a one-off callout / premium brand | £80 to £140 |
What's included in the price?
A typical boiler service price includes:
- Visual inspection of the boiler, flue and gas connections
- Checks on gas pressure, flow and the burner combustion figures
- Testing of safety devices and the seals on the case
- Cleaning of key internal parts where needed
- The service recorded in your Benchmark book or a digital service history
- A written report noting anything that needs attention
What changes the price?
The things that move a boiler service price most:
Whether you add a gas safety certificate (CP12) for a let property
Boiler type and brand, as some premium models take longer
Your region, with London and the South East charging more
Whether the visit is a one-off callout or part of a cover plan
Any extra appliances, such as a gas hob or fire, checked on the same visit
How the price is built up
The price is built around a Gas Safe registered engineer's time for a visit of 30 to 60 minutes, plus their travel, insurance and registration costs. A landlord CP12 adds the extra appliance checks and the certificate paperwork, which lifts the total. A one-off callout on a premium brand can sit at the top of the band where the model takes longer to strip down and check. A boiler service is almost entirely labour, as it is the engineer's time and expertise rather than any parts, which are only charged if a repair is needed.
Ways to keep the cost down
- Book the service and a CP12 together if you are a landlord, as the package usually saves £20 to £40
- Get two or three quotes from local Gas Safe engineers, as independents often undercut the large firms
- Schedule the service in spring or summer when engineers are quieter and demand is lower
- Only choose a cover plan if you genuinely want the repair cover, not just the service
Does where you live change the cost?
London and the South East run around £110 to £130, while much of the North and Midlands sits closer to £70 to £95.
Common questions
Boiler service prices in 2026 run from about £70 to £130 for a one-off annual gas service, with most households paying around £90. London and the South East tend to charge £110 to £130, while parts of the North and Midlands come in nearer £70 to £95. Oil boilers cost more, at roughly £120 to £150, because they take longer to check and clean.
Boiler servicing covers a visual inspection of the boiler, flue and gas pipework, then checks on gas pressure, combustion figures and the flow rate. The engineer tests the safety devices, inspects the seals, cleans internal parts where needed, and records the work in your Benchmark book. You get a written report, usually the same day, noting anything that needs a repair or a closer look.
Boiler warranties from brands such as Worcester Bosch, Vaillant and Ideal require a service by a Gas Safe registered engineer every 12 months, with the paperwork to prove it. Skip a year and the manufacturer can void the cover, leaving you to pay the full cost of any repair. At around £90 a year, a service is far cheaper than losing warranty protection on a boiler that can cost £2,000 or more to replace.
Landlord gas safety certificates cost about £60 to £90 for a single appliance in 2026, rising to £85 to £120 where a boiler, hob and gas fire are all checked. Many engineers offer a combined service and CP12 package for £110 to £160, which usually saves £20 to £40 against booking the two separately. Landlords must arrange this check every 12 months by law.
Boiler servicing is a planned annual check to confirm the appliance is safe and running efficiently, and it does not fix a fault. A repair addresses a specific problem, such as no hot water or a fault code, and is charged separately, often £150 to £400 depending on the part. A service can flag an early issue, but the repair itself is a further job with its own cost.
Boiler cover plans include the annual service in the monthly price, so you avoid a separate £70 to £130 bill. Plans such as British Gas HomeCare start at around £24 a month and bundle breakdown cover and callouts alongside the service. Over a year that is more than a one-off service alone, so a plan only saves money if you also value the repair cover it provides.
These are independent guide prices based on typical UK jobs in 2026. Your actual cost depends on your property, spec, access and where you live. Always get at least three written quotes before committing.