Boiler service vs gas safety check: the difference
4 min read · Updated 25 Aug 2026 · Reviewed by accredited engineer
A Gas Safety Certificate (CP12) is a legal safety check confirming your gas installation is currently safe. A boiler service is a mechanical maintenance procedure designed to clean burners, check internal wear, maintain efficiency, and preserve manufacturer warranties.
Save money by combining both
Instead of booking separate visits, combining an annual boiler service and CP12 inspection on the same day costs £120, saving time and money.
Deep cleaning of heat exchangers and condensate traps
Analysis of combustion efficiency to lower tenant heating bills
Preserves manufacturer warranties that require annual servicing