Expert GSW Water Heater service, repair and high-efficiency installation across Metro Vancouver — factory-trained technicians, upfront pricing, trusted since 1999.
⏱️ Same-day response · Next-day appointments for non-emergency work
Tell us what you need—we’ll call you back fast.
GSW is known for Canadian-made water heaters. CANRO’s Red Seal technicians service the full GSW range, diagnose faults accurately, and install correctly-sized systems with the available rebates handled for you.

Not sure of your model? We service the full GSW range—just tell us what you have.
GSW has manufactured water heaters in Canada since 1847, and that long domestic history shows in how well their tanks suit BC housing. The ProLine gas series is the most common GSW unit our technicians see in Metro Vancouver condos, townhomes, and older detached homes, typically in 40- or 50-US-gallon sizes, often installed in utility closets where space is tight. The EnviroSense line adds an ultra-low-NOx burner that meets BC air-quality standards without sacrificing recovery rate, making it a sensible choice for homeowners who want to stay ahead of evolving municipal regulations.
Power-vent GSW models are common in Metro Vancouver suites and basement installations where a conventional B-vent chase is not available. They draw combustion air from the room and exhaust through a PVC or ABS pipe run horizontally to an exterior wall, useful in airtight construction, but they add an electrical component (the blower motor) that conventional tanks lack. CANRO technicians size and route GSW power-vent installations to BC Safety Authority requirements, including minimum clearance distances from windows, doors, and gas meters. Sizing a replacement correctly, factoring in household size, peak demand, and available gas BTU input, determines whether a direct swap or a larger-capacity model is the right call. Call us at (604) 359-1081 or visit our contact page for a no-obligation sizing assessment.
GSW ProLine and power-vent tanks are generally reliable, but our technicians see a handful of recurring issues in BC conditions. Hard Lower Mainland water accelerates sediment buildup at the bottom of the tank, which shortens the life of the lower element on electric models and produces the rumbling noise homeowners often describe. Annual flushing and anode rod inspection after year three extends tank life considerably. On power-vent units, the blower motor and pressure switch are the most common failure points; a motor that runs but does not produce enough pressure to satisfy the switch will lock out the burner entirely, leaving the home with no hot water. Our contact line at (604) 359-1081 connects you directly to a licensed technician for same-day diagnosis.
Switch to a heat pump or high-efficiency system and stack rebates from CleanBC, BC Hydro, FortisBC and the federal Greener Homes program. We’re a registered contractor—and we handle the paperwork for you. Ask about the interest-free Greener Homes Loan.
“Canro does an amazing job! Super professional and skilled with everything—boilers, furnaces, and AC. Always a pleasure working with them!”

“Five stars for Canro. We needed a replacement of a 30-year-old boiler. A new high-efficiency unit was installed—clean, professional work.”

“I can’t speak highly enough about George, who was recommended for a boiler service call for my parents’ home. George is excellent.”

We’re factory-trained across every major brand. Explore another, or call and we’ll handle whatever you have.
Tell us what’s going on. Most calls are answered the same business day.
A licensed tech diagnoses the issue and gives you honest options—no surprises.
We do the work cleanly, walk you through it, and handle any rebate paperwork.
25+ years keeping Metro Vancouver homes comfortable. Honest advice, upfront pricing, work that lasts.