Replacing a furnace in Canada is published between $3,000 and $12,500 installed, and the four installers on this page differ by 1.9x on their published floors alone. An Ontario contractor publishes $3,000–$8,500 all-in. A Calgary installer's cheapest single-stage furnace starts at $5,800. A Vancouver installer quotes $5,500–$12,500 installed.
Here is the part that costs Canadian homeowners real money. Every price guide on the internet hands you one national average, as if a furnace in Red Deer and a furnace in Scarborough were the same purchase. A furnace in Red Deer and a furnace in Scarborough are not the same purchase. And the moment your furnace dies at 2am in February, that fake national average is the only number in your head — which is exactly when a salesperson finds out how little you know about what the job is worth in your province.
⚡ Key insights on furnace replacement cost in Canada
- An Ontario HVAC contractor publishes a 2026 furnace replacement range of $3,000 to $8,500, including standard installation.
- A Calgary installer publishes $5,800 to $6,700 for a single-stage furnace installed — its cheapest option costs 1.9x the Ontario contractor's published floor of $3,000.
- A Vancouver installer publishes a combined furnace-plus-installation total of $5,500 to $12,500.
- A second Ontario publisher, a GTA HVAC contractor, puts furnace installation in Toronto at $4,000 to $8,000 — the same $4,000 floor as the Ontario contractor's own GTA figure, with a $1,500 higher ceiling.
- Within Ontario alone, the same contractor prices the GTA at $4,000–$6,500 and Northern Ontario at $6,000–$10,000+.
- None of the four Canadian HVAC companies on this page publishes a permit-free install: budget $100 to $300 for permits and inspection on top of the quoted price.
How much does furnace replacement cost in Canada?
Furnace replacement in Canada is published between $3,000 and $12,500 installed, and the honest way to show that is one row per publisher rather than one blended average. The table below lists what each Canadian HVAC company actually publishes on its own site, with the city it prices for, so you can see the disagreement instead of having it averaged away.
Read the Calgary single-stage row again. The Calgary installer's cheapest furnace, $5,800, costs more than the Ontario contractor's cheapest complete installation, $3,000. Compare the two published floors and they sit $2,800 apart — two Canadian companies, both publishing openly, both credible, both describing a standard gas furnace in a normal house, before anyone has looked at your basement.
Why do Canadian furnace replacement quotes differ by 1.9x on the same job?
Canadian furnace prices disagree because furnace pricing is regional, not national — and the clearest proof comes from inside a single province. The table below is one Ontario contractor's own regional ladder for the identical job, which shows the spread without changing the company, the equipment or the year.
Three mechanisms move a Canadian furnace price, and none of them is the badge on the front of the unit. Travel and crew time price a rural install above an urban one. Efficiency tier moves the equipment cost: the same Ontario contractor publishes $2,500–$4,000 for a standard-efficiency 80–85% AFUE furnace against $3,500–$5,500 for a 90–98% AFUE unit. Venting moves the labour: switching from a mid-efficiency to a high-efficiency furnace needs new exhaust venting run to the exterior, and a Calgary installer states that code deficiencies, complicated venting or relocating the furnace can add $500 or more.
What is the average cost to replace a furnace in Canada?
There is no established national average for furnace replacement in Canada, and any single figure presented as one is a guess dressed up as data. Four Canadian installers currently publish $3,000–$8,500 (Ontario, stated by that contractor as of January 2026), $4,000–$8,000 (Toronto), $5,800–$10,800 (Calgary, by stage type) and $5,500–$12,500 (Vancouver). The published Canadian furnace ranges overlap in the middle and separate sharply at both ends, so averaging them produces a number that nobody in Canada actually charges.
💡 Use the range for your city, not for your country
A Toronto homeowner benchmarking against a national average is benchmarking against Northern Ontario and Vancouver at the same time. The number that protects you is $4,000 to $6,500 for the GTA, and a second, unrelated GTA contractor publishes $4,000 to $8,000 for Toronto — two independent Ontario publishers landing on the same $4,000 floor. Quote it back to the third salesperson and watch what happens to the price.
What does an installed furnace price actually include in Canada?
An installed furnace price in Canada should name the unit, the labour and the disposal in writing, and a Vancouver installer separates the two halves plainly: the furnace itself at $4,000–$9,000, and installation at $1,500–$3,500 on top. Read the $4,000–$9,000 band closely before you lean on it. The same Vancouver installer breaks the same band down three separate ways — by fuel ($4,500–$8,000 gas, $4,000–$6,500 electric), by efficiency ($5,500–$9,000 high-efficiency, $4,000–$6,000 standard) and by house size ($4,000–$6,500 small to medium, $6,500–$9,000 larger) — and neither fuel row reaches its own $9,000 ceiling. A quote reading only “gas furnace” has answered one of those three questions and left the other two to the salesperson. Confirm all seven of the items below appear on the page before you sign anything.
✅ What a complete Canadian furnace quote names
- The model number and the AFUE rating. Without both, you cannot compare two quotes at all.
- Removal and disposal of the old furnace. An Ontario contractor prices this separately at $60–$500.
- The venting work. A Vancouver installer prices venting improvements at $500–$1,500 where the existing system needs replacing.
- Permits and inspection. An Ontario contractor prices permits and inspections at $100–$300; a Vancouver installer prices a gas fitting permit at $200–$300.
- The licensed gas connection. Ontario licenses fuel work through the Technical Standards and Safety Authority, so ask for the TSSA registration and the gas technician's certificate.
- Ductwork changes, if any. An Ontario contractor prices duct modifications at $200–$1,000.
- Both warranties, with durations. The manufacturer's parts warranty and the installer's labour warranty are two different documents.
What hidden costs get added to a furnace replacement in Canada?
Hidden costs on a Canadian furnace replacement are the line items that sit outside the advertised install price, and Canadian installers publish most of them openly. The table below collects the published add-ons so you can budget for them before a technician names them in your basement.
Add the published add-ons together and a $5,000 Canadian furnace quote can invoice past $7,000 without a single dishonest line on it. An invoice past $7,000 on a $5,000 furnace quote is not fraud. That invoice priced the furnace and left the job out — and the only defence is a written scope before the truck is booked.
Is it worth replacing a 30 year old furnace?
Replacing a 30-year-old furnace in Canada is normally worth it, because a furnace that old is past the service life its installer would have promised. A Calgary installer states the position plainly: a properly installed furnace lasts more than 20 years, while a poorly installed one may not last 10. At 30 years the equipment is running on borrowed time, parts availability is thinning, and each repair is spent on a unit with no remaining life to protect.
The decision is arithmetic rather than sentiment. Price the replacement against your own region — $4,000–$6,500 in the GTA, $5,800–$6,700 for a single-stage unit in Calgary — and compare it against the repair quote in front of you. A repair that costs a meaningful fraction of a full replacement, on a 30-year-old furnace, is money spent on a machine you will replace anyway.
What furnace sales tactics should Canadian homeowners refuse?
Furnace sales tactics land hardest on Canadian homeowners in a January breakdown, when the house is cold and comparing quotes feels like a luxury. Refuse all five of these on the spot, and refuse them by phone before anyone is standing in your basement.
🚩 Five furnace quote red flags in Canada
- A price with no model number and no AFUE rating. A quote that will not name the equipment cannot be compared against any other quote.
- A "today only" price on a furnace. Furnace pricing is regional and seasonal, never hourly. A deadline measured in hours is a sales device.
- "We can skip the permit to save you money." An Ontario contractor prices permits and inspections at $100–$300. Anyone offering to save you $300 by working uninspected on a gas appliance is telling you what else they skip.
- Most of the money before any work starts. Tie payment to completion and inspection, not to the signature.
- No proof of gas licensing or workers' compensation coverage. In Ontario, ask for the TSSA registration and the gas technician's certificate before booking, not on the day.
How do you compare furnace quotes in Canada without paying lead fees?
Every furnace quote that reaches you through a lead-selling directory arrives with a cost you never see printed on it. Lead-generation platforms charge the contractor for the introduction, sell the same homeowner's request to several companies at once, and collect the fee whether that contractor wins the job or loses it. Contractors do not absorb that lead fee — they price it into your furnace quote. You pay for the four quotes you did not hire.
TaskRight breaks that mechanic deliberately. Pros pay a flat subscription and nothing else — zero commission, so the price you agree is the price the installer keeps. No per-lead fees, no request resold five times, no lead cost quietly financed out of your furnace quote.
TaskRight is a verified, zero-commission home services platform in Canada. Describe the job once — your city, your fuel type, the age of the furnace you are replacing — and compare real installed quotes side by side, free, with no obligation to book any of them.
👈 Compare verified furnace quotes in Canada →
Frequently asked questions about furnace replacement in Canada
How many years should a furnace last?
A furnace in Canada should last more than 20 years when it is properly installed, and a Calgary HVAC installer states that a poorly installed furnace may not last 10. Installation quality, not the brand on the cabinet, is what separates those two outcomes, which is why the installer you screen matters more than the badge you buy.
Should a 25 year old furnace be replaced?
A 25-year-old furnace in Canada is at or past the end of a well-installed unit's expected life, so plan the replacement rather than wait for the failure. Replacing on your schedule lets you collect three quotes against your regional range — $4,000 to $6,500 in the GTA — instead of accepting whatever a February emergency call produces.
Is a 40 year old furnace safe?
A 40-year-old furnace in Canada should be inspected by a licensed gas technician before another heating season, because age raises the risk of heat exchanger cracks and combustion problems. In Ontario, fuel work is licensed through the Technical Standards and Safety Authority, so ask for the TSSA registration and the technician's gas certificate before booking the inspection.
What is the average cost to replace a furnace in Ontario?
Furnace replacement in Ontario is published at $3,000 to $8,500 including standard installation by an Ontario HVAC contractor. The same contractor splits that by region: $4,000 to $6,500 in the GTA, $4,200 to $6,800 around Hamilton and Burlington, $5,200 to $8,500 in rural southwestern Ontario, and $6,000 to $10,000 or more in Northern Ontario.
Are furnace prices going up in 2026?
None of the four Canadian HVAC companies on this page publishes a furnace price trend for 2026, so treat any forecast as a sales line rather than data. What they publish is the range itself: $3,000 to $8,500 installed in Ontario, stated as of January 2026, $4,000 to $8,000 in Toronto, $5,800 to $10,800 in Calgary, and $5,500 to $12,500 all-in in Vancouver.
Do you need a permit to replace a furnace in Ontario?
Budget for a permit on an Ontario furnace replacement: an Ontario HVAC contractor prices permits and inspections at $100 to $300 as a standard line item. Ontario licenses fuel work through the Technical Standards and Safety Authority, and a reputable installer handles the permit for you rather than offering to skip it.
Last updated: August 2026. Methodology: every CAD figure on this page is a price published by a named Canadian company on its own website and is attributed by role and city — an Ontario HVAC contractor, a GTA HVAC contractor, a Calgary HVAC installer and a Vancouver HVAC company, four independent businesses with separate contact details. Ontario is carried by two independent publishers rather than one. Figures are advertised Canadian prices, not TaskRight quote data, and not a quote for your home. Where those publishers disagree, this page shows the disagreement rather than averaging it. Taxes are extra and vary by province. Prices are re-checked every six months.
