Boiler repair and servicing

Boiler not firing, losing pressure, locking out or making a noise it did not used to make? We diagnose and fix breakdowns across West London, and service every major brand.

• Same day attendance wherever the diary allows
• Common spares carried, so many faults are fixed on the first visit
• Full annual service: combustion analysis, seals, gas pressure, safety devices
• Written service record for your warranty or landlord file
• Honest advice when a boiler is not worth repairing
• All major brands, including older units other firms will not touch

Common faults, and what they usually mean

A boiler losing pressure is normally a leak somewhere, often at a radiator valve or a failed expansion vessel rather than the boiler itself. Repeated lockouts with a fault code usually point at the ignition, the flame sensor or a blocked condensate pipe, which in cold weather is the single most common winter callout there is and one of the cheapest to fix. Hot water that runs lukewarm on a combi is usually a scaled plate heat exchanger, which West London's hard water brings on faster than most of the country.

None of that is a diagnosis over the phone, but it does mean it is worth calling rather than assuming the worst. Plenty of boilers we are called out to condemn turn out to need one inexpensive part.

What an annual service includes

A proper service is not a five-minute look and a sticker. We check the gas rate and burner pressure, run a combustion analysis with the flue gas analyser, strip and clean the burner and heat exchanger where the boiler allows, check the seals, test every safety device, check the condensate run and flue integrity, and check the system pressure and expansion vessel charge. You get a written record at the end.

Doing this every year keeps the manufacturer warranty valid, and it catches the small problem before it becomes the expensive one.

When to stop repairing

There is a point where a boiler stops being worth spending money on: parts becoming hard to source, a failed heat exchanger, or a unit over about fifteen years old needing a second significant repair in a year. We will tell you when you have reached it, give you the repair price and the replacement price side by side, and leave the decision with you. There is no commission in it for us either way.