Water Heater Drain Valve Replacement Cost in Vancouver

Published: July 22, 2026 — BC Wide Home Services Ltd, doing business as BC Wide Heating & Air Conditioning — Greater Vancouver, BC

Signs of Drain Valve Failure

Water dripping from the drain valve (even when closed), the valve will not open when you try to drain the tank, the valve is stripped and the handle spins freely, or there is visible corrosion around the valve. Most factory drain valves are plastic and prone to failure.

Upgrade to Brass

Factory water heater drain valves are typically plastic with a small opening that clogs easily. Upgrading to a full-port brass ball valve improves flow for faster draining and is much more durable. Brass valve cost: $15-30. Professional installation: $200-400.

Replacement Cost

Drain valve replacement costs $200-400 including the valve ($15-30 for brass) and labour ($150-250). The tank must be drained below the valve level. If the old valve breaks off during removal, extraction may add cost. Same-day service 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.