Vaillant boiler repair and servicing across London

About Vaillant

Vaillant is German, and it’s been in the UK for a long time. In London you’ll see its ecoTEC boilers everywhere, especially in flats and converted houses. They’re compact, so they fit the small cupboards conversions tend to leave. No boiler brand gets searched for by name in London more often. Usually that means you’ve already got one and want an engineer who knows it well.

Faults we often find on a Vaillant

• Pressure that won’t stay up because the expansion vessel has failed
• Ignition or flame-sensing faults on ecoTEC boilers that have done a lot of hours
• Boilers squeezed into cupboards, leaving little room to service them

This is what tends to crop up, not a verdict on yours. An engineer checks your boiler in person and finds the fault before giving you a price.

Asked about Vaillant

Why does my Vaillant keep losing pressure — is it the boiler or the system?

It could be either. Find out which before you spend anything. If pipework or a radiator is leaking, you can sometimes spot the water. If the expansion vessel has failed, the pressure drops and nothing looks wet. Vessels often fail on boilers of this age. It’s a repair, not a reason to replace the boiler.

Can you fix and service my Vaillant?

We can. Our gas work is done by Gas Safe registered engineers. By law, that is what any gas boiler needs, whatever the make.