An annual service checks that your boiler is burning gas safely and efficiently, and catches wear before it causes a breakdown. Carried out by Gas Safe registered engineers with a full combustion analysis and written record, for homeowners and landlords across Farnham, Guildford, Godalming, Farnborough, Fleet and Camberley.
A boiler that is running does not necessarily mean that it is running safely or efficiently. Seals degrade, burners collect debris, heat exchangers pick up deposits, and safety devices can drift out of correct operation gradually, with no obvious symptom until something fails outright.
An annual service catches that drift early, while it is still a minor adjustment rather than a replacement part or a shutdown. It also provides the documented maintenance history that homeowners, landlords and warranty providers may need.
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A genuine service is a set of checks and measurements. We inspect the boiler, test safe operation and record the readings taken so that any findings can be properly understood.
The service starts with measured checks that show whether the boiler is burning gas correctly and operating within the manufacturer's specification.
Wear and restriction can develop gradually. The service looks at the components and water-side condition that can affect reliability and performance.
Every service includes a written record of the checks and readings taken, including the combustion analysis result. Keep it as a maintenance history and as evidence for a warranty claim where needed.
A service plan puts the annual service on a fixed schedule so it is not missed between house moves, tenancy changes or a busy year. It is a scheduling convenience, not a different scope of work.
The flue gas analyser measures the gases in the exhaust — principally oxygen, carbon dioxide and carbon monoxide — to confirm the boiler is burning gas completely and safely. A result outside the manufacturer's tolerance can point to a burner, gas valve or ventilation problem requiring investigation.
A boiler service and a landlord gas safety check (CP12) are not the same. A CP12 is a statutory annual safety check of every gas appliance in a rented property; a service is manufacturer-recommended maintenance focused on the boiler's performance and warranty conditions. Both can be completed on the same visit where relevant.
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If your boiler already has a fault, such as a lockout code, no heat or low pressure, it should be booked as a diagnostic repair visit rather than waiting for a scheduled service.
Call 01252 214120Once a year, in line with manufacturer requirements for most warranties. Servicing annually, even on an older boiler with no warranty condition attached, is the most reliable way to catch wear before it causes a breakdown.
No. A service is manufacturer-recommended maintenance on the boiler itself. A landlord gas safety check (CP12) is a statutory check of every gas appliance in a rented home. Both can be carried out on the same visit where relevant.
Undetected wear can continue longer than it should, and a missed service can affect a manufacturer warranty claim if a fault later occurs. It is still worth booking the next service; it should simply be treated as due.
Not necessarily. A service is a planned check and clean, not a diagnostic repair visit. If the boiler has a fault, such as a lockout code, no heat or low pressure, it should be booked as a repair call rather than waiting for a scheduled service.
Yes. Every service includes a written record of the checks and readings taken, including the combustion analysis result, which should be kept for warranty purposes and as a maintenance history for the property.
Yes. A service plan schedules and reminds you of the annual visit rather than leaving it to be booked ad hoc. The scope of the visit itself is unchanged.
A standard domestic boiler service usually takes under an hour, though this can vary if the engineer identifies something that needs a closer look or a repair quote.
Tell us your boiler make and model and we'll confirm what a full service on it involves and get you booked in.
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Message the ComGas office on 01252 214120.