CANRO Heating & Cooling repairs, installs, maintains and supplies parts for U.S. Boiler Alta condensing boilers — combi and heat-only — across Greater Vancouver from our Burnaby shop.
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Quick answer: CANRO Heating & Cooling services U.S. Boiler Alta condensing boilers — both the combi and heat-only versions — throughout Greater Vancouver. Our Burnaby-based, Technical Safety BC licensed gasfitters handle Alta diagnostics, repairs, parts replacement, annual maintenance and full installations or replacements. Call (604) 359-1081 for same-day service and a free written quote after diagnosis.
Want a straight answer for your home? Call (604) 359-1081 or request a free written quote.
The Alta is U.S. Boiler Company's modern wall-hung condensing gas boiler line, sold in two main configurations: a combi version that provides both space heating and on-demand domestic hot water from a single compact unit, and a heat-only version that pairs with an indirect tank or serves hydronic heating alone. Both are condensing, mid-90s AFUE class appliances that extract extra heat from flue gases, which is exactly the kind of efficiency that pays off through a long, damp Lower Mainland heating season.
One of the Alta's defining features is its gas-adaptive combustion system. Rather than relying on a technician manually tuning a gas valve with a combustion analyzer at every adjustment, the Alta continuously monitors and self-adjusts its air-fuel mixture. In practice this makes commissioning more forgiving, but it does not make the boiler maintenance-free — the condensing heat exchanger, condensate system, venting and sensors still need qualified annual attention, especially in Metro Vancouver's wet climate.
We see Altas in detached homes, townhouses and laneway houses from Vancouver and Burnaby out to Surrey, Coquitlam, Richmond, North Vancouver and the rest of the region. They frequently replace older cast-iron boilers or first-generation condensing units, and the wall-hung format suits the small mechanical closets common in newer Lower Mainland construction.
Alta boilers are designed to protect themselves, so most problems show up as a lockout or degraded performance before they become a full breakdown. Call us if you notice any of the following:
During Lower Mainland cold snaps, an Alta running flat out will expose weak components first — a marginal ignitor, a tired circulator or a partially blocked condensate trap that behaved fine in October can take the system down in January. If your boiler is showing warning signs, it is far cheaper to fix them in shoulder season than during an outage.
Our gasfitters carry combustion analyzers, manometers, multimeters and refractometers, and we diagnose the Alta methodically rather than swapping parts on guesswork. A typical diagnostic visit covers the control's fault history, gas supply pressure, flame signal, ignition sequence, venting and condensate drainage, system water pressure and quality, and on combi units the domestic hot water plate exchanger and flow sensing.
Because the Alta's combustion system is self-adjusting, some faults that look like ignition failures are actually caused upstream — undersized or restricted gas lines, blocked intake or exhaust terminations, or a flooded condensate trap. Coastal BC adds its own wrinkles: sidewall vent terminations take wind-driven rain, and condensate lines routed through unheated garages or exterior walls can freeze during a cold snap. We check all of it before recommending a repair.
We charge a straightforward diagnostic visit fee and then give you a free written quote for the repair before any work proceeds. No surprise line items, and you decide before we open the boiler up.
Rather than listing every code, here are the fault patterns we most often resolve on Alta boilers in Greater Vancouver, described by symptom:
If your Alta is displaying a specific code, note it down (and whether it recurs) before you call — it shortens the diagnosis. But do not keep resetting a lockout repeatedly; the boiler is locking out to protect itself.
Thinking about installing a new Alta, or replacing an aging one? CANRO handles the complete project: heat-loss-informed sizing, combi versus heat-only selection, gas line verification, venting design, condensate routing and neutralization, system flushing, and commissioning with a combustion analyzer. Every gas boiler installation we do is permitted and inspected through Technical Safety BC — that is not optional in BC, and it protects you at insurance and resale time.
Sizing matters more with modulating condensing boilers than it did with old cast-iron units. An oversized Alta will short cycle, wearing components and wasting the efficiency you paid for. We size to the home's actual heat loss and, on combi models, to your realistic domestic hot water demand — a two-bathroom Burnaby home and a five-bathroom Coquitlam home are not the same job.
Typical pricing in Greater Vancouver: boiler installation runs $6,500–$14,000+ and boiler replacement $7,500–$15,000+, depending on venting complexity, gas line upgrades, condensate routing, zoning and whether an indirect tank is part of the project. We give you a fixed written quote before work begins.
A licensed CANRO technician can assess it honestly — no supplier quotas, no pressure.
📞 (604) 359-1081Request a free quoteWhen a component fails, you want it replaced correctly and quickly — not a pitch for a whole new boiler if the unit has life left. We stock or can source Alta-compatible parts through Metro Vancouver hydronic wholesalers, and U.S. Boiler is well distributed in Canada, so most common components are available same-day or within a few days. Parts we regularly replace on Alta boilers include:
Every parts repair starts with a diagnostic visit and ends with a free written quote — we do not publish flat parts prices because the right price depends on the exact component, sourcing and labour involved. If your Alta's heat exchanger is within its warranty period, we will help you document the claim; parts warranties typically cover the component but not labour, and we are upfront about that distinction.
We also flag repairs that do not make economic sense. If a major component fails on an older unit with other wear showing, we will lay out the repair-versus-replace math honestly and let you decide.
Condensing boilers earn their efficiency through a heat exchanger that runs wet with acidic condensate — which is precisely why they need annual service. In Metro Vancouver, where boilers run most of the year and the air carries plenty of moisture, skipping maintenance is the most common root cause of the mid-winter breakdowns we attend.
A CANRO annual tune-up on an Alta includes:
Annual service also protects your manufacturer warranty position — U.S. Boiler, like every manufacturer, expects documented maintenance by qualified technicians. We leave you a written service record after every visit.
A dead boiler in a January cold snap is not a wait-until-next-week problem. CANRO offers same-day service across Greater Vancouver whenever our schedule allows, and after-hours availability for genuine no-heat and no-hot-water emergencies. Being based in Burnaby at 7325 6th Street puts us within a short drive of Vancouver, New Westminster, Coquitlam, Richmond, Surrey and the North Shore.
Our service vans carry the diagnostic tools and common universal components to resolve many Alta faults in a single visit. When a model-specific part has to come from a wholesaler, we secure the boiler safely, order the part and return as soon as it lands.
| Service | What to Expect |
|---|---|
| Repair diagnosis | Diagnostic visit fee, then a free written quote before any repair proceeds |
| Parts replacement | Quoted in writing after diagnosis — price depends on the exact component and labour |
| Annual maintenance | Flat-rate tune-up; ask for current pricing when you book |
| New Alta installation | $6,500–$14,000+ depending on venting, gas line, zoning and hot water configuration |
| Boiler replacement | $7,500–$15,000+ depending on removal, retrofit complexity and system upgrades |
We do not quote repairs over the phone because honest pricing requires seeing the boiler. What we can promise: a clear diagnostic fee stated up front, a free written quote before work starts, and no pressure to replace a boiler that is worth fixing.
If you are upgrading from an older non-condensing boiler to a high-efficiency Alta, you may qualify for support. The federal Canada Greener Homes Grant closed to new applicants in 2024, but the Canada Greener Homes Loan remains available for interest-free financing of eligible home energy upgrades. Provincially, CleanBC and FortisBC run rebate programs for qualifying high-efficiency heating equipment — program rules, eligible models and amounts change, so we confirm current eligibility for your specific project rather than quoting numbers that may be stale.
Most programs require installation by a licensed contractor with proper permits — which is how CANRO works on every job anyway. We will point you to the current program details and make sure your paperwork supports the application.
CANRO Heating & Cooling is an independent, licensed gas contractor — not a dealer for any brand — which means our only incentive is fixing your boiler properly. We have served Metro Vancouver since 1999, and hydronic heating is our core trade, not a sideline.
Whether your Alta needs a same-day repair, a new part, its annual tune-up, or you are weighing a full replacement, call CANRO at (604) 359-1081 or email info@canroheat.ca. We will give you a straight answer and a written quote.
⚠️ Safety note: If you ever smell gas near your boiler, do not attempt a reset or repair. Leave the building immediately, call FortisBC's emergency line at 1-800-663-9911 from a safe location, and then call CANRO at (604) 359-1081 once the gas utility has made the site safe.
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📞 (604) 359-1081Request a free quoteReviewed by the CANRO Heating & Cooling service team — July 06, 2026. Technical Safety BC gas licence LGA0043870 · boiler licence LBP0046450 · Red Seal certified · WorkSafeBC and liability insured · 4.9★ from 85+ Google reviews · serving Metro Vancouver since 1999 · (604) 359-1081.
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