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Whether you need a new furnace installation or a complete furnace replacement, Comfort Union installs it right with the best warranty in Calgary and same-day quotes available.
As a Carrier Authorized Dealer in Calgary, we install and guarantee every Carrier furnace we sell. Every model comes with our Lifetime Heat Exchanger Warranty and a 14-year parts and labour guarantee.
Carrier Comfort Series
Ideal for smaller Calgary homes
Up to 96% AFUE
Single-Stage Operation
12-Year Warranty Included
Carrier Performance Series
Best value for Calgary winters
Up to 97% AFUE
Two-Stage Operation
12-Year Warranty Included
Carrier Infinity Series
Greenspeed® Intelligence
Up to 98.5% AFUE
Modulating Operation
12-Year Warranty Included
New furnace installation and replacement costs in Calgary range from $4,500 to $9,000+ depending on the model, home size, and complexity. Here’s a clear breakdown so you know what to expect.
| Single-Stage Furnace | Two Stage Furnace | Modulating Furnace |
|---|---|---|
| Typical Calgary Cost (CAD)$4,900 - $7,500 | Typical Calgary Cost (CAD)$6,000 - $9,000 | Typical Calgary Cost (CAD)$8,700 - $11,000 |
| Best ForSmaller homes, budget-conscious | Best ForMost Calgary homes, best value | Best ForLarger homes, maximum comfort |
As Calgary’s trusted furnace installation company since 1995, we install all major brands with industry-leading warranties — 24 hours a day.
We back every furnace installation and replacement in Calgary with guarantees our competitors can’t match. Every promise below is in writing.
The price we quote is the price you pay. No hidden charges discovered during installation, no surprise bills afterward. Your final cost is locked at your free estimate.
The heart of your furnace — the heat exchanger — is covered for life. As long as you own your Calgary home, we cover it. No other local HVAC company offers this.
Full manufacturer-backed coverage on parts and labour for 14 years from installation date. This is among the longest coverage periods available in the Calgary market.
We guarantee your new furnace will be the correct size for your home. If the system doesn’t achieve the promised temperature range, we replace it — at no cost to you.
Our installers use floor runners and protective coverings throughout your home. In the unlikely event of any damage during installation, we repair or replace it. Period.
We commit to an installation date and we keep it. Calgary winters don’t wait, and neither do we. Same-day quotes are available for urgent furnace replacement situations.
Calgary winters demand a reliable furnace. If yours shows any of these warning signs, a furnace replacement is almost always more cost-effective than another repair. Our HVAC experts will give you an honest assessment — no upselling.
Most Calgary furnaces last 15–20 years with regular maintenance. After 20 years, efficiency drops significantly and breakdowns become more frequent. If your furnace is in this range, replacement is the smarter investment.
Older furnaces typically run at 60–70% AFUE efficiency. A new Carrier furnace runs at up to 98.5% AFUE — saving 20–30% on your natural gas bill every month. In Calgary’s climate, that adds up fast.
Unusual sounds often mean worn-out components like a failing blower motor, cracked heat exchanger, or loose parts. A cracked heat exchanger is a safety issue — carbon monoxide can enter your home.
Use the “$5,000 rule”: multiply your furnace’s age by the repair cost. If the number exceeds $5,000, replacement is the wiser choice. A new high-efficiency Carrier furnace will pay for itself in energy savings.
If some rooms in your Calgary home are warm while others are cold, your furnace may be losing the ability to distribute heat properly — a sign the system is failing.
If you’ve called for furnace repairs more than twice in the last two years, you’re in a cycle. A new furnace installation in Calgary typically costs $4,500–$9,000 — and includes a 14-year warranty.
A furnace that’s too small can’t heat your home on Calgary’s coldest nights. One that’s too large short-cycles, wears out faster, and wastes gas. General guidance: Calgary homes require 30–60 BTU per square foot, for an average Calgary home of 1,800 sq ft, that means a furnace in the 60,000–80,000 BTU range.
Our comfort advisors perform a full load calculationn during your free estimate — the right size, guaranteed
AFUE (Annual Fuel Utilization Efficiency) measures how efficiently your furnace converts natural gas to heat. Calgary’s climate dropping to -25°C makes this number critical. Switching from an old 70% AFUE furnace to a new 96% Carrier furnace typically saves Calgary homeowners $300–$700 per year in natural gas costs alone.
Every service visit follows the same 4-step process, transparent, professional, and stress-free from start to finish.
We visit your Calgary home, assess your current system, measure your space, and provide a guaranteed, no-obligation quote — same day.
We recommend the right Carrier model for your home size, budget, and Calgary climate needs. No pressure — just expert guidance.
We recommend the right Carrier model for your home size, budget, and Calgary climate needs. No pressure — just expert guidance.
Your warranties are registered, documentation is provided, and we follow up to ensure your new system is performing perfectly for Calgary winters.
We’ve been installing and replacing furnaces in Calgary homes since 1995. Here’s what sets Comfort Union apart from every other HVAC company in Calgary.
Since 1995, we've installed thousands of furnaces in Calgary homes — from Beltline condos to Airdrie new builds. We know Calgary's climate, building codes, and what your home actually needs.
As a Carrier Authorized Dealer, we have direct access to the latest Carrier technology, factory training, and the ability to register the full manufacturer warranty on your behalf.
Every Comfort Union technician is Red Seal certified and licensed by the Province of Alberta. We hold all required Calgary contractor licences (Licence #16356719). No subcontractors — ever.
Our 4.9-star Google rating from 200+ Calgary homeowners isn't an accident. It's the result of doing the job right, being honest about pricing, and standing behind our work.
New furnace installations and replacements are a significant investment. Our financing options let you spread payments with 0% interest for 6 months on approved credit.
When your furnace fails at midnight in a Calgary January, you need someone to answer the phone. We're available 24/7, 365 days a year. Your comfort doesn't keep business hours.
Hi we are johnny and Jackie from airdrie our furnace died and reached out to comfort union for a replacement the staff there was extremely polite starting with Ian who went over all the details and was true his word the technicians they sent Mohamed and Darryl were very professional and Mohammed stayed extra hours to make sure everything was right good job and much appreciated
I had Asif and Mo replace our 33 year old natural gas furnace with an IBC combi boiler, IBC air handler and Gree heat pump & coil. They took extra time to explain how the system works and addressed all my many questions!!! Thank you! Looking forward to reliable and safe heating, cooling and hot water for years to come.
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, took the time to explain the new furnace and left the house tidy. I would recommend this company.
We install new furnaces across all four Calgary quadrants, same-day quotes available, with installations typically completed within 1–2 days.
Tuscany, Royal Oak, Scenic Acres, Hawkwood, Edgemont, Varsity, Dalhousie, Montgomery, Bowness and all NW communities.
Skyview Ranch, Saddle Ridge, Martindale, Taradale, Temple, Pineridge, Rundle, Marlborough and all NE communities.
Signal Hill, West Springs, Aspen Woods, Cougar Ridge, Springbank Hill, Pump Hill, Lakeview, Glamorgan and all SW communities.
Auburn Bay, Mahogany, Cranston, McKenzie Towne, Copperfield, New Brighton, Douglasdale, Riverbend and all SE communities.
Furnace installation in Calgary typically costs between $4,900 and $11,000 all-in, depending on the model, home size, and installation complexity. Single-stage furnaces run $4,900–$7,500, two-stage furnaces $6,000–$9,000, and modulating furnaces $8,700–$11,000. All Comfort Union quotes include equipment, labour, City of Calgary permits, and inspection, no hidden costs. Financing is available from $70/month with approved credit.
Most furnace installations in Calgary take one day, typically 4–8 hours. This covers removing the old unit, installing the new furnace, connecting venting and gas lines, filing City of Calgary permits, and a full system test before the technician leaves. More complex jobs involving ductwork changes or venting relocation may require two days. Comfort Union confirms the timeline at your free estimate so there are no surprises.
Yes, a permit is required for virtually all furnace installations and replacements in Calgary. The City of Calgary issues a gas permit to a licensed gas fitter covering the appliance, venting, and gas line. Comfort Union handles all permits and City of Calgary inspections on your behalf, included in your installation price. You never deal with paperwork, we manage everything so your installation is fully legal, warranted, and documented.
Use the $5,000 rule: multiply your furnace’s age by the repair cost. If the result exceeds $5,000, replacement is almost always the better investment. For example, a 15-year-old furnace with a $400 repair = $6,000, replacement makes sense. Under 10 years old with a minor repair, fix it. Calgary’s extreme winters also accelerate furnace wear, so furnaces over 15 years old typically benefit from replacement even before they fully fail.
Calgary homes generally require 30–60 BTU per square foot. An average 1,800 sq ft Calgary home typically needs a furnace in the 60,000–80,000 BTU range. However, proper sizing requires a full Manual J load calculation, which accounts for your home’s insulation, ceiling height, windows, and layout. Comfort Union performs this calculation at your free in-home estimate at no charge. An oversized furnace short-cycles and wears out faster; an undersized one can’t keep up on Calgary’s coldest nights.
For Calgary’s climate, with winters regularly dropping to −25°C, a high-efficiency two-stage or modulating furnace rated 96% AFUE or higher is the best choice. Comfort Union recommends the Carrier Performance Series (97% AFUE, two-stage) as the best value for most Calgary homes, and the Carrier Infinity Series (98.5% AFUE, modulating) for maximum comfort and energy savings. Both include a 14-year parts and labour warranty and Lifetime Heat Exchanger Warranty.
Replacing an old 60–70% AFUE furnace with a new 96–98.5% AFUE Carrier furnace typically saves Calgary homeowners $300–$700 per year in natural gas costs. Calgary’s long heating season often 6+ months means efficiency improvements have a larger impact here than in most Canadian cities. A high-efficiency furnace generally pays for itself in energy savings within 7–10 years, while providing significantly better comfort throughout.
Yes. Comfort Union offers 0% financing for 6 months on approved credit, with monthly payments starting from $70/month. A new furnace is a significant investment, financing lets you replace your furnace immediately without delaying until it fails completely, which in Calgary can mean a cold home in the middle of winter. Ask about financing options when you book your free in-home estimate.
Every furnace Comfort Union installs includes a Lifetime Heat Exchanger Warranty, as long as you own your Calgary home. Parts and labour are covered for 14 years through our manufacturer-backed warranty, one of the longest coverage periods in the Calgary market. All warranties are registered on your behalf and provided in writing at the time of installation. If the system doesn’t achieve the promised temperature range, we replace it at no cost, that’s our Right-Size Guarantee.
Look for a company that is a licensed Alberta contractor, carries WCB coverage, has verifiable Google reviews from real Calgary homeowners, and provides a written quote with no hidden costs. Ask specifically whether they handle City of Calgary permits, what warranty covers both parts and labour, and whether they perform a load calculation to properly size your furnace. Comfort Union is a Carrier Authorized Dealer, BBB Accredited, and holds Alberta contractor licence #16356719, all verifiable credentials.
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