Expert Boiler Repairs by Trusted London Engineers

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  Emergency boiler repairNo heat or no hot water tonight. We tell you on the phone whether somebody can reach you today, before you wait in.
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  Boiler repairThe rate agreed first, then the fault, the part and the labour written down before anything is touched.
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  Unvented cylinder repairNotifiable work needing G3 on top of Gas Safe. Our engineers hold both, so the boiler and the tank are one visit rather than two.
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  Boiler servicingThe visit where a scale reducer and a magnetic filter go in, which in London water is worth more than the service itself.
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  Power flushingFor cold spots at the bottom of radiators and a boiler that kettles. Worth more in a period conversion than in a new build.
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  Boiler replacementOnly when the arithmetic says so. We will tell you a boiler is worth keeping, which is not what everybody quoting you will say.
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  Landlord gas safety, CP12Certificate and any repair on the same visit where the appliance passes, so a let property is not off the market twice.
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  Electric boiler repairNo gas supply, which is a lot of London flats. Same engineers, same rate, same year on the parts.

We know London property

Terraces, mansion blocks, conversions and new builds, and every system inside them.

• Combi boilersThe wall-hung unit most London flats and smaller houses run on.
• System boilers and vented cylindersA tank in the airing cupboard fed from the loft. Standard in period houses that were never converted.
• Unvented cylindersMains-pressure hot water. Notifiable work needing G3 on top of Gas Safe, and our engineers hold both.
• Electric boilersNo gas supply at all, which is a great many London flats.

More on the tank side of it, and what G3 covers, on our unvented cylinder page.

Worcester Bosch, Vaillant, Baxi, Ideal, Glow-worm, Potterton, Viessmann, Alpha, Main, Ariston, Ferroli, Vokera, Biasi, ATAG, Keston and the rest. Each has a page explaining what its codes actually mean and what they usually turn out to be, which is not the same thing as what the manual says. The full list is on our boiler brands page.