Annual boiler servicing by Gas Safe registered engineers
Boiler Servicing
Boiler servicing is an annual safety and efficiency check of a gas boiler, carried out by a Gas Safe registered engineer, which is also usually required to keep the manufacturer's warranty valid.
Definition
What boiler servicing involves
An annual service checks the boiler is operating safely and efficiently: checking for gas leaks and correct combustion, inspecting the flue, testing safety devices, and checking system pressure. Most boiler manufacturers require an annual service to keep the warranty valid, and it's also good practice for safety.
Suitable for
- Annual boiler servicing to maintain manufacturer warranty
- Landlords needing an annual gas safety check alongside servicing
- Homeowners wanting peace of mind on boiler safety and efficiency
Not suitable for
- Anyone other than a Gas Safe registered engineer carrying out the service — this is a legal requirement
Process
How the work is carried out
- 01
Visual inspection
Checking the boiler, flue and surrounding installation for visible issues.
- 02
Combustion check
Testing combustion performance and gas pressure.
- 03
Safety device check
Testing safety devices are functioning correctly.
- 04
Certification
Providing a service record, and a Gas Safety Certificate (CP12) where required for landlords.
Typical timescale
A standard boiler service is typically completed within 30-45 minutes.
Cost guidance
Priced as a standard service visit, with any faults found quoted separately as identified.
Limitations and exclusions
- Servicing is carried out only by Gas Safe registered engineers, in line with legal requirements
- Faults found during a service are explained and quoted separately rather than assumed to be included
Areas we cover
Boiler Servicing across Sussex, Surrey, Kent and South London
Local property styles, planning authorities and neighbourhood coverage for boiler servicing in each town we work in.
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FAQs
Boiler Servicing FAQs
Why does my boiler need an annual service?
It's usually a condition of the manufacturer's warranty, and it checks the boiler is operating safely and efficiently — catching minor issues before they become costly failures or, in rare cases, safety risks.
Discuss your boiler servicing project
Tell us about the property and what you have in mind, and we'll arrange a site visit.
Last reviewed 2026-07-19.