A faulty gas control valve on a Port Moody water heater controls both the pilot and main burner, so a failure here usually means no hot water at all.
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Quick answer
Replacing the gas control valve on a residential gas water heater in Port Moody typically costs $200–$1,100 for the part and labour combined, on top of the standard $90–$150 service call. This is a wide ballpark based on 2026 public market data for the Lower Mainland, not a fixed quote, because control valve designs and prices vary significantly by manufacturer and model. CANRO's certified gas technicians confirm the exact price once they identify the specific valve your tank uses.
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The gas control valve is the central component that regulates gas flow to both the pilot and the main burner on a standard gas water heater, and it typically houses the thermostat dial homeowners use to set water temperature. On many modern tanks it also integrates electronic ignition control and safety shutoffs, meaning a single valve failure can take out ignition, temperature regulation, and safety monitoring all at once.
Because it does so much, it is also one of the pricier individual components on a water heater, and its cost varies more between brands and models than almost any other part, which is why the ballpark range for this repair is wider than most.
This has one of the widest published ballparks of any single component, reflecting how much valve design varies:
| Line item | Typical range (CAD) |
|---|---|
| Service call / diagnostic | $90–$150, usually credited toward the repair |
| Licensed labour | $95–$165 per hour |
| Gas control valve, parts and labour combined | $200–$1,100 |
These are 2026 public-market ballpark figures for Metro Vancouver, not a quote for your specific tank. CANRO's certified gas technicians confirm the exact price once they have identified your tank's make and model and sourced the correct matching valve.
Because a gas control valve sits toward the higher end of individual component costs, this is one of the clearer moments to weigh repair against full tank replacement, particularly on an older tank. If your technician quotes toward the top of that range because your specific valve is hard to source or unusually expensive, and the tank is already well into its expected service life, it is worth asking directly whether that money is better spent on a new water heater with a full warranty. On a newer or mid-life tank, replacing the valve is almost always the more sensible choice.
Port Moody's mix of older character homes near Moody Centre and newer construction on the hillsides above the inlet means water heater installations vary quite a bit in age and design across the city, which is part of why control valve replacement costs vary so much here — an older standing-pilot tank has a very different valve than a newer electronic-ignition unit. Your technician will confirm which type you have before quoting.
Because this work directly involves the gas control system, it must be performed by a Technical Safety BC licensed gas fitter, who will test the pilot, ignition, and safety shutoff functions after the new valve is installed. A like-for-like valve swap does not typically require a separate City of Port Moody permit.
Safety note
The gas control valve manages gas flow to the burner and pilot directly, so this repair must be performed by a Technical Safety BC licensed gas fitter who will test the safety shutoff function before finishing the job. If you ever smell gas near your water heater, leave the home immediately and call FortisBC's emergency line at 1-800-663-9911.
If the pilot lights but goes out repeatedly, the gas control valve's safety mechanism or the thermocouple feeding it could be the cause, and a technician will test both to identify which one is actually failing.
Gas control valves vary enormously by manufacturer and by whether they include electronic ignition features, which is why the price range spans further than most other water heater components.
If the dial no longer changes actual water temperature, the valve's internal thermostat mechanism has likely failed and adjusting the dial further will not help — this needs a technician's diagnosis.
In many cases a correctly matched universal valve performs just as reliably as an original manufacturer part, and your technician can advise on the best option for your specific tank and budget.
A straightforward valve swap with the part on hand is typically a same-visit job of a few hours, including testing pilot, ignition, and safety functions afterward. A special-order part adds wait time.
That depends on the tank's age and overall condition — your technician can walk you through the trade-off honestly rather than defaulting to either option.
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