Plain-English answers to the questions London asks us every day: what that error code means, what a repair should cost, and when to stop repairing altogether. No jargon, no scare tactics, and every guide ends with what to do next.
F22 means low water pressure. Repressurise to 1.5 bar in five steps, and know when it is a leak.
The three causes of a dropping pressure gauge, and when a top-up is masking a leak.
Real 2026 London prices for the common repairs, what moves the number, and how to avoid overpaying.
Ignition failure on Vaillant boilers, what causes it and what the fix costs.
The most common Worcester lockout code, decoded.
Twelve things to check before calling an engineer when the taps run cold.
The honest maths on when a repair stops being worth it.
The winter lockout every London boiler risks, and the ten-minute thaw.
Boiler broken right now? Skip the reading. Call 020 3000 0000, engineers answer 24/7.
Call 020 3000 0000