Boiler service cost (UK, 2026)
£70 to £120
per service, typical UK range, 2026
An annual service keeps the manufacturer warranty valid, catches small faults before they strand you in January, and takes under an hour.
Prices cluster tightly across the UK, with London and the South East at the top of the range.
These are honest typical ranges, not promises: your job, your area and access all move the number. Use them to sanity-check quotes, then get itemised ones.
What moves the price
- Where you live (London and the South East run higher)
- Combi vs system vs back boiler (older and rarer costs more)
- One-off visit vs a service plan subscription
A fair quote includes
- Flue gas analysis with a meter, not just a look
- Case off: burner, heat exchanger and seals inspected
- Gas pressure checked against the data plate
- A written record: you need it for the warranty
Ask these before you say yes
- 1.Are you Gas Safe registered, and can I see the card? (Any legitimate engineer expects this question)
- 2.Is the flue gas reading included in the price?
- 3.Will I get a written service record?
Worth a second look if
- A 'service' that takes ten minutes with the case never removed
- Pressure to sign up to a monthly plan on the doorstep
- Quotes without a company name or landline anywhere
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