How much does it cost to fix boiler error code Gas valve(s)?

Typical repair cost for the boiler Gas valve(s) fault is £250-£450 including labour.

Gas valve(s) High

Boiler Fault Code Gas valve(s)

Also written as GASVALVES — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Gas valve(s) appears across 1 boiler brand and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler is unable to safely control the flow of gas needed to stay lit, so it has shut down to avoid a potential hazard. (As reported on Ideal Concord CXA 40-120)

Pick your boiler brand for the Gas valve(s) fix

Ideal Gas valve(s) 2 models

Source

Information for the Gas valve(s) fault code is sourced from the official service / installation manual for each model that displays it. Read more about how we source fault codes →

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026