Boiler Gas Valve Replacement Cost in Vancouver

Published: July 22, 2026 — CANRO Heating & Cooling — Greater Vancouver, BC

Signs of Gas Valve Failure

The boiler fails to fire (no gas flow despite ignitor working), the boiler fires weakly with a yellow or lazy flame, the gas valve makes a clicking sound but does not open, intermittent operation where the boiler sometimes fires and sometimes does not, or a gas smell near the gas valve.

Why Professional Replacement Is Required

Gas valve replacement involves: working with gas under pressure, disconnecting and reconnecting gas piping, pressure testing for leaks, adjusting the gas pressure regulator for correct manifold pressure, and verifying combustion with a flue gas analyzer. Only licensed gas fitters should replace gas valves.

Replacement Cost

Boiler gas valve replacement costs $400-800 including the valve ($200-450 depending on brand) and labour ($200-350). Navien and Viessmann gas valves are typically more expensive than budget brands. Emergency same-day replacement available.

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Safety Reminder

If you smell gas, suspect carbon monoxide or believe there is an immediate danger, leave the property and contact emergency services or the appropriate gas emergency authority. Do not remain inside — exit the building immediately and call for help from outside.