Furnace Repair Calgary
1-Hour Response, Any Time
When your furnace fails in a Calgary winter, you don’t have time to wait. Our licensed technicians arrive within 60 minutes — day or night, weekday or holiday — and fix all major brands on the spot.
What Calgary Homeowners Say
Our furnace shut down early in the morning, and we called Comfort Union at 6:30 AM for an emergency furnace repair. A technician arrived within 2 hours, quickly diagnosed the problem, and found that our gas …
Comfort Union was recommended to me by a friend when our furnace quit working , within a few days we had suggestions and a quote from Asif. Mohammed and Mohammed along with their…
Our furnace unexpectedly failed and we needed a replacement right away. Ian at Comfort Union made it a priority to provide a quote same day. The installation team lead by Mohammad were professional…
Calgary's Most Trusted
Furnace Repair Team
When your furnace fails in a Calgary winter, you don’t have time to wait. Our licensed technicians arrive within 60 minutes — day or night, weekday or holiday — and fix all major brands on the spot.
We guarantee a technician at your door within 60 minutes of your call — across all Calgary quadrants and surrounding communities, around the clock.
Flat diagnostic fee, no matter the time of day. You get a full upfront quote before any work begins. No surprise charges, ever — that’s our promise to every Calgary homeowner.
Our vans carry OEM-compatible parts for Calgary’s most common furnace brands. Most repairs — Carrier, Lennox, Goodman, Trane — are completed in a single visit.
If the diagnosed issue returns after our repair, we come back at no charge. We never push unnecessary replacements — if it can be repaired, we repair it.
Common Furnace Problems We Fix Same-Day in Calgary
Whatever your furnace is doing — or not doing — our Calgary technicians have seen it and fixed it. We repair all furnace makes and models, 24 hours a day.
No Heat at All
Furnace won't ignite or turn on. Could be the igniter, gas valve, control board, or thermostat, we diagnose and fix on the spot.
Furnace Blowing Cold Air
Heat exchanger, flame sensor, or gas pressure issue. A common Calgary complaint we resolve same-day in most cases.
Pilot Light or Ignition Failure
Thermocouple, spark igniter, or gas valve problems. We carry the most common igniters for all major brands in our vans.
Why Calgary Furnaces Break Down More Than Most Cities
Calgary’s climate puts unique stress on home heating systems that most HVAC companies don’t talk about. Understanding these local factors is why Comfort Union resolves more furnace repairs in a single visit than the city average.
Chinook Temperature Swings
Calgary temperatures can swing 20–30°C in a single day. This rapid expansion and contraction cracks heat exchangers, wears seals, and stresses burner assemblies faster than any other Canadian city. Most furnace failures we see in Calgary trace back to Chinook stress.
Extreme Dryness & Altitude
At 1,045m elevation with some of Canada’s lowest winter humidity, Calgary’s dry air coats flame sensors and burners with dust far faster than humid cities. A flame sensor that lasts 3 years in Vancouver can fail in a single Calgary heating season. It’s the most common repair we do all winter.
Frozen PVC Exhaust Vents
High-efficiency furnaces vent through PVC pipes near ground level. In deep freezes, condensation ices over the pipe, triggers a safety shutoff, and your furnace stops. It happens most on Calgary’s coldest nights, often after a Chinook warm spell. Fast fix, but needs a technician.
How Much Does Furnace Repair Cost in Calgary?
Most furnace repairs in Calgary cost between $150 and $700, depending on the part required and complexity. Below is a realistic breakdown based on the most common repairs we complete each heating season across Calgary.
We always provide a full itemized quote before starting any work. No surprise charges. No pressure to approve on the spot.
Flat diagnostic fee — any time, any day
Applied toward your repair cost when you proceed. Consistent pricing day or night — we don’t charge inflated emergency rates.
| Repair Type | Estimated Cost (CAD) | Notes |
|---|---|---|
| Igniter or flame sensor replacement | $150 – $300 | Calgary's most common furnace repair — dry climate accelerates flame sensor buildup |
| Thermocouple replacement | $150 – $250 | Common on older pilot-light furnaces; part usually on-hand |
| Pressure switch replacement | $200 – $350 | Often triggered by frozen exhaust vents in Calgary winters |
| Blower motor repair or replacement | $300 – $600 | Variable-speed motors cost more; ECM motors on high-efficiency units |
| Control board replacement | $400 – $700 | Carrier and Lennox boards often available same-day from local suppliers |
| Gas valve replacement | $400 – $700 | Safety-critical — always replaced with OEM or OEM-compatible parts |
| Inducer motor replacement | $350 – $650 | Common failure point on 10–15 year old furnaces |
| Heat exchanger inspection & repair | $300 – $900+ | Cracked exchangers are a CO risk — may require full system replacement |
| Capacitor or relay replacement | $150 – $280 | Quick fix — usually resolved within the first hour of the service call |
Important: These ranges reflect typical Calgary furnace repair costs. Your final cost depends on your furnace model, parts required, and repair complexity. Comfort Union provides a full itemized quote before beginning any work. There are no hidden fees.
Repair or Replace Your Calgary Furnace? Here's How to Decide
A good rule of thumb is the “5,000 Rule” used by HVAC professionals across Alberta. Multiply your furnace’s age (in years) by the estimated repair cost. If the result exceeds $5,000, replacement likely offers better long-term value than repair.
Our technicians will always give you an honest, pressure-free recommendation — including what we’d do if it were our own furnace.
If result > $5,000 → Consider replacement
If result < $5,000 → Repair is likely smarter
Furnace Brands We Repair in Calgary
Our technicians are factory-trained on all major brands installed in Calgary homes. We carry OEM-compatible parts for the most common makes in our service vehicles.
Carrier Furnace
Carrier Infinity, Performance, and Comfort series. Common repairs: error codes 33 & 14, inducer motor failures, SureLight igniter replacements, and variable-speed blower issues.
Lennox Furnace
Full Lennox lineup including SLP98V, EL296V, and ML196E series. We handle pressure switch faults, draft inducer failures, and Lennox-specific control board diagnostics
Trane Furnace
Trane S9V2, XC95m, and XV80 series. We diagnose limit switch tripping, TEM4 faults, and ComfortLink communication errors — common Trane issues in Calgary's climate.
Goodman & Amana Furnace
Budget-friendly options with advanced technology like two-stage and modulating systems. Compact models for homes with limited space.
Call us — our technicians can assess and service virtually any residential gas furnace installed in a Calgary home. If we can’t fix it, we’ll tell you honestly.
Furnace Repair Across All of Calgary
We maintain technicians in all four Calgary quadrants so we can reach any neighbourhood within 60 minutes — 24 hours a day.
Furnace Repair NW Calgary
Tuscany, Royal Oak, Scenic Acres, Hawkwood, Edgemont, Varsity, Dalhousie, Montgomery, Bowness and all NW communities.
Furnace Repair NE Calgary
Skyview Ranch, Saddle Ridge, Martindale, Taradale, Temple, Pineridge, Rundle, Marlborough and all NE communities.
Furnace Repair SW Calgary
Signal Hill, West Springs, Aspen Woods, Cougar Ridge, Springbank Hill, Pump Hill, Lakeview, Glamorgan and all SW communities.
Furnace Repair SE Calgary
Auburn Bay, Mahogany, Cranston, McKenzie Towne, Copperfield, New Brighton, Douglasdale, Riverbend and all SE communities.
Frequently Asked Questions About Furnace Repair in Calgary
How much does furnace repair cost in Calgary?
Most repairs fall between $150 and $700 depending on the part. Simple fixes like a flame sensor or thermocouple run $150–$300. Major components like a control board or gas valve reach $400–$700. Our diagnostic fee is $99–$129 flat — applied toward your repair when you proceed.
How quickly can you respond to an emergency furnace repair?
We guarantee a technician at your door within 60 minutes — 24 hours a day, 7 days a week including holidays. We have technicians in all four Calgary quadrants so no neighbourhood waits longer than anyone else. Same rate day or night — we don’t charge emergency premiums.
Do you repair all furnace brands in Calgary?
Yes — Carrier, Lennox, Trane, Goodman, Amana, Keeprite, Daikin, American Standard, Ruud, Bryant and more. Our vans carry OEM-compatible parts for all major brands so most repairs are done in a single visit. If we can’t fix it, we’ll tell you honestly.
Should I repair or replace my furnace?
Use the 5,000 Rule — multiply your furnace’s age by the repair cost. Over $5,000 means replacement is worth considering. Under $5,000 and under 15 years old, repair is almost always the smarter choice. Our technicians give you an honest recommendation with zero pressure.
Do you offer a warranty on furnace repairs?
Yes — our Done-Right Guarantee means if the same issue returns after our repair, we come back at no charge. We also honour manufacturer warranties on all installed parts. We never recommend a part that doesn’t need replacing.
What are the most common furnace problems in Calgary?
Flame sensor buildup from Calgary’s dry air, frozen PVC exhaust vents from Chinook cycles, igniter failures, short cycling, and pressure switch faults. Most are same-day repairs. Calgary’s climate is harder on furnaces than most Canadian cities — annual maintenance prevents the majority of these.
Is it safe to run my furnace if it's making a loud noise?
It depends on the noise. Rattling is usually a loose panel — less urgent. Loud banging when starting is serious and can indicate a cracked heat exchanger — stop running the furnace and call immediately. Any noise you don’t recognise is worth a same-day diagnostic.
How do I know if my furnace has a cracked heat exchanger?
Warning signs include a carbon monoxide alarm, a yellow flickering pilot light, a burning smell when the furnace runs, and soot marks near the unit. If you suspect a cracked heat exchanger, turn off your furnace immediately and call us — this is a carbon monoxide risk and should not be ignored.
How often should I service my furnace in Calgary?
Once a year — ideally in September before heating season. Annual maintenance catches small issues early, keeps efficiency high, and is often required to maintain your manufacturer warranty. Furnaces that are serviced annually consistently last 3–5 years longer than those that aren’t.
What should I do if my furnace stops working at night?
Check your thermostat is on Heat mode, check the furnace circuit breaker, confirm the furnace power switch is ON, and check if your filter is clogged — a blocked filter can trigger a safety shutdown. If none of these work, call (403) 399-7903. We respond within 60 minutes anywhere in Calgary, same rate as a daytime call.
Everything we share from pricing to repair advice is 100% upfront and honest. Your family’s comfort and safety matter, and we treat every Calgary home like it’s our own.
Everything we share from pricing to repair advice is 100% upfront and honest. Your family’s comfort and safety matter, and we treat every Calgary home like it’s our own.
Contact Our Calgary Furnace Repair Team
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