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Once a year — and ideally before the heating season starts (August-October). Annual boiler service is the single biggest factor in extending boiler lifespan, keeping the manufacturer warranty valid, and preventing mid-winter breakdowns.
Ideally August through October, before peak heating season. Booking in winter is harder because we’re busy on emergency calls, and a planned maintenance visit gets pushed if a no-heat emergency comes in.
Schedule online or call. Most appointments within a week.
📞 (604) 359-1081 Request a quoteCANRO Heating & Cooling — TSBC Class-A gas-fitting licence · Red Seal HVAC certified · WorkSafeBC and liability insured · 4.9★ from 85+ Google reviews · Serving Metro Vancouver since 1999.
What follows is the practical information CANRO shares with Metro Vancouver homeowners about boilers during in-home consultations. Modern condensing gas boilers in Metro Vancouver operate at 92-98% AFUE, with modulating burners that match output to demand. Hydronic systems — radiators, in-floor radiant, and air handlers — deliver exceptionally even heat with very low operating noise.
Heat-pump rebates from BC Hydro, FortisBC and the federal Greener Homes program stack to as much as $11,000+ for eligible Metro Vancouver households, dramatically changing the install-cost math vs. a conventional system. CANRO has worked with boiler systems across Metro Vancouver since 1999, including installations and service calls in South Surrey, Thompson, Metrotown and Westwood Plateau.
Sizing. Boiler sizing depends on heat-loss calculations (Manual J for the home + emitter capacity check). Oversized boilers short-cycle, which is the single biggest cause of premature heat-exchanger failure in Vancouver hydronic installs.
Lifespan. A well-maintained condensing boiler typically lasts 15-20 years in Vancouver. Cast-iron heritage boilers can run 30+ years, but their efficiency (60-75% AFUE) often makes replacement worthwhile after 20 years on energy savings alone.
Warning signs. A failing boiler typically shows kettling (banging or whistling at start-up), expansion-tank pressure loss requiring frequent top-ups, sooty combustion residue, persistent error codes, or radiators that no longer balance.
A useful rule: if the boiler is more than 15 years old and the repair cost is more than 50% of replacement, replacement is the better long-term investment because newer units run at 95%+ AFUE vs 75-82% for older models — paying back the difference in energy savings over 6-10 years. CANRO gives you both quotes and lets you decide.
A typical residential high-efficiency gas boiler installation in Metro Vancouver costs $7,500-$15,000 depending on size, brand, and whether the system is heating-only or a combi unit also handling domestic hot water. Premium European brands (Viessmann, Baxi) sit at the upper end; North American brands (Navien, IBC, Rinnai) at the lower-middle.
A heating-only boiler heats only the hydronic loop (radiators, in-floor radiant, air-handler coil); a separate hot-water tank handles domestic hot water. A combi (combination) boiler heats both — eliminating the tank but requiring a higher-BTU boiler to handle peak DHW demand. Combi installs work best for 1-3 bathroom homes; heating-only + tank is usually better for 4+ bathroom homes.
Pressure loss indicates either: an expansion tank that has lost its air charge, a leak somewhere in the loop (often a tiny pinhole behind a radiator or under flooring), a weeping pressure-relief valve, or a faulty automatic fill valve. CANRO uses pressure-decay testing and infrared imaging to locate hidden leaks.
Kettling is a banging or whistling sound caused by limescale build-up on the heat exchanger, which creates localised overheating spots. It will not always cause immediate failure but it shortens boiler life significantly and should be addressed within a few weeks by descaling and water-chemistry correction.
Annual servicing is recommended for all residential boilers in Metro Vancouver. The service includes combustion analysis, heat-exchanger inspection, expansion-tank pressure check, condensate-trap cleaning, circulator pump check, and a full safety inspection. Annual maintenance is also required to keep most manufacturer warranties valid.
To book boiler service or get a free written quote for installation, call CANRO at (604) 359-1081 or email info@canroheat.ca. We service all of Metro Vancouver including South Surrey, Thompson, Metrotown and Westwood Plateau.
This guide was written by the CANRO Heating & Cooling team based on 25+ years of boiler installation, repair and annual service work across Metro Vancouver. Last reviewed May 2026.
“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.”
25+ years keeping Metro Vancouver homes comfortable. Honest advice, upfront pricing, work that lasts.