How much does a boiler service cost in London?
An annual boiler service in London typically costs £80–£150, with most around £110. Servicing yearly keeps warranties valid, catches faults early, and keeps the boiler safe and efficient.
Low
£80
Typical
£110
per service
High
£150
Based on London market research, updated July 2026. First-party London Heroes data will replace this as jobs complete.
What a proper service includes
A genuine service is more than a visual once-over: flue gas analysis, burner and heat exchanger inspection, seal checks, gas pressure check, and a safety device test. Expect 45–60 minutes. If an engineer is done in 15 minutes, that was not a service.
Book in summer or early autumn — prices are steadier and you avoid the October rush when everyone turns their heating on and discovers a fault at once.
Common questions
How often should a boiler be serviced?
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Reviewed by the London Heroes Operations Team · Last reviewed: . This guide is general information, not a quote or a substitute for advice from a qualified professional.