Boiler Gas Safety Checks in Kingston upon Thames

Boiler gas safety checks in Kingston upon Thames, carried out by Gas Safe registered engineers. We test combustion, flue performance, seals and ventilation, and tell you straight away whether the boiler is safe to keep using.

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Testing How the Boiler Burns

The engineer uses a flue gas analyser to measure what the boiler is producing. Those readings show whether it is burning cleanly or running rich, which is the earliest sign of a problem. Readings are recorded so you can compare them next year.

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Flues, Seals and Ventilation

A boiler is only as safe as the flue taking the fumes outside. We check the flue route, the terminal position and the case seals, and confirm there is enough air getting to the appliance. Blocked or damaged flues are the fault that matters most.

Older Boilers and Room Sealed Units

Older open flued boilers need more attention than modern room sealed ones, because they draw air from the room itself. If yours sits in a cupboard or a converted space, the ventilation is worth checking properly rather than assuming it was right when fitted.

Frequently Asked Questions

How do I know if my boiler is unsafe?

Warning signs include a yellow or orange flame instead of blue, black marks around the casing, more condensation than usual in the room, and a pilot light that keeps going out. If you notice any of these, stop using the boiler and book a check.

Does a boiler gas safety check include a service?

Not automatically. The safety check confirms the boiler is safe to use. A service also strips and cleans the burner and heat exchanger and replaces worn parts. Booking both together is usually cheaper than two separate visits and keeps the warranty valid.

How long does a boiler safety check take in Kingston upon Thames?

Around thirty minutes for a single boiler in an accessible spot. It takes longer if the boiler is boxed in, in a loft, or if the flue runs a long way. Clearing space around the boiler before we arrive keeps the visit short.

About us

A boiler gas safety check is the part of the job we are asked about most often after certificates. Quick Call Gas Certificates has worked on domestic boilers around Kingston upon Thames for more than 20 years, across every common make, so worn parts and early warning signs are familiar ground.