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GTA installers publish about $4,500 to $6,500 installed for a high-efficiency furnace (price pages read September 19, 2026).
What changes the price of a furnace replacement, what rebates apply, and how to pay for it in the Greater Toronto Area.
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Read all reviewsGTA installers publish about $4,500 to $6,500 installed for a typical high-efficiency new furnace in Toronto. The final cost depends on efficiency, brand, home size and installation. We give you a written quote for your home before any work starts. Government rebate programs currently focus on heat pumps, not standard gas furnaces.
Typical published price
$4,500–$6,500
Installed, high-efficiency furnace
Full published spread
$4,000–$8,000
Modulating models at the top
Where it comes from
5 GTA installers
Price pages read September 19, 2026
We read the public price pages of five GTA installers. Here is what each one says a furnace replacement costs installed, with the date on its page.
Across the five pages we read, most published ranges centre on about $4,500 to $6,500 installed for a high-efficiency furnace. The full spread runs from about $4,000 to $8,000, and modulating models sit at the top.
| Installer | Published price | Scope | Page date |
|---|---|---|---|
| Installer AGTA | $4,300 – $7,000 | Installed; most $4,500 – $6,500 | Updated Aug 24, 2026 |
| Installer BGTA baseline | $4,000 – $6,500 | Including standard installation | Updated Sep 16, 2026 |
| Installer CToronto | $4,000 – $7,000 | Installed | May 20, 2026 |
| Installer DToronto | $4,000 – $8,000 | Installed | Updated Apr 24, 2025 |
| Installer EGTA | From $4,791 | Installed, 96% two-stage model | Updated May 12, 2026 |
These are other companies' published figures, not Imperial Heating prices, read on their own pages on September 19, 2026. Most are guides, not quotes for a specific home, and most do not say whether HST is included. Prices on those sites may have changed. We keep the source pages on file. We quote your home in writing.
Furnace prices vary with the efficiency rating. Higher-efficiency models cost more upfront but use less natural gas. Ask for a written quote to see the difference for your home.
| Furnace Type | Efficiency (AFUE) | Upfront Cost | Best For |
|---|---|---|---|
| Mid-Efficiency | 80% AFUE | Lower | Budget-conscious, rental properties |
| High-Efficiency | 96%+ AFUE | Higher | Most homeowners |
| Modulating / Variable Speed | 97%–98% AFUE | Highest | Maximum comfort, quietest operation |
Note: Mid-efficiency (80% AFUE) furnaces are being phased out across Canada. Most new installations in Ontario use high-efficiency models. Current government rebate programs do not cover standard gas furnaces. They focus on cold-climate heat pumps and heat-pump water heaters.
We give you a written price for the brand and model that fits your home. Here are furnace brands we install, including Kepler and Lennox.
Canadian brand, built for Canadian winters
Ask for a written price on a Lennox furnace
We will recommend the furnace that fits your home size, budget, and comfort needs. Learn more about our heating services.
No two furnace installations are identical. Several factors determine your final price beyond the cost of the unit itself. Understanding these variables helps you budget accurately.
Larger homes need higher-BTU furnaces. A 1,200 sq ft bungalow may only need a 60,000 BTU unit, while a 3,000 sq ft two-storey home could require 100,000+ BTUs. Bigger units cost more.
If your existing ductwork is undersized, damaged, or poorly sealed, modifications may be needed. Duct repairs or upgrades add to the installation cost.
Higher AFUE means more of every dollar of gas is converted to heat. A 96% AFUE furnace costs more upfront than an 80% model, but uses less gas, which lowers your heating bills.
The brand and model change the price. Features like variable-speed blowers and modulating gas valves add to it.
Switching from mid-efficiency to high-efficiency requires new PVC venting. Difficult access, gas line upgrades, or electrical work can increase labour costs.
The City of Toronto requires permits for furnace installations. Permit fees are separate from the equipment price. A reputable installer handles the permit process for you.
Not every furnace issue requires a full replacement. Here is how to determine whether a furnace repair makes more sense than investing in a new unit.
Not sure which option is right for you? Our technicians provide honest assessments. We will never recommend a replacement when a repair will do. Book a diagnostic appointment and we will give you a straightforward recommendation. The thresholds we use are laid out in our repair vs replace guide. If you are in North York, our shop is on Don Mills Rd., and you can contact us for a written quote.
Standard gas furnaces and air conditioners are not covered by current Ontario or federal rebate programs. Current programs focus on cold-climate heat pumps and heat-pump water heaters. Here is what is actually available when buying a new furnace.
Ontario’s Home Renovation Savings Program targets cold-climate heat pumps, not standard gas furnaces. Standard furnaces are not rebated under any current federal or provincial program. See our heat pump cost guide if you are weighing that option.
While not a rebate, Enbridge’s Sustain program provides lease-to-own financing for furnaces, ACs, and heat pumps with $0 down. Imperial Heating offers Enbridge Sustain. Check our financing page for current terms.
Manufacturers sometimes run seasonal promotions. Ask us at your quote what applies to the model you are considering.
$0 Down, 15-Year Term
Our Enbridge Sustain lease-to-own program lets you get a new furnace with no upfront cost. Service and repairs are at no charge for the term, and approval is up to Enbridge Sustain. The monthly rises once a year by 2.5% or CPI, whichever is greater. Learn more about financing options.
In-house rebates available. Ask at your quote. We don’t file government rebate paperwork for customers.
No government rebate applies to standard furnaces. Government programs set their own amounts and rules; the current Home Renovation Savings terms are at homerenovationsavings.ca. For the heat pump option, see our heat pump cost guide.
A new furnace is a significant investment, but it does not have to strain your budget. Enbridge Sustain lease-to-own is our lead option, and we go over the ways to pay on your written quote.
$0 down on a 15-year (180-month) term, subject to Sustain approval. Own it at the end of the term. The monthly rises once a year by 2.5% or CPI, whichever is greater.
Learn MoreProper sizing is critical. An undersized furnace will struggle to heat your home on the coldest Toronto winter days, while an oversized unit will short-cycle, wasting energy and wearing out components faster. Here are general guidelines based on home size.
| Home Size (sq ft) | Recommended BTUs |
|---|---|
| 800 – 1,200 sq ft | 40,000 – 60,000 BTU |
| 1,200 – 1,800 sq ft | 60,000 – 80,000 BTU |
| 1,800 – 2,500 sq ft | 80,000 – 100,000 BTU |
| 2,500 – 3,500+ sq ft | 100,000 – 120,000+ BTU |
These are estimates for standard Toronto-area homes. Factors like ceiling height, insulation quality, number of windows, and sun exposure all affect actual requirements. A professional heat loss calculation ensures accurate sizing. Book a free phone quote.
Answers to the most common questions Toronto homeowners ask about furnace pricing, installation, and rebates.
Disclaimer: Actual costs vary based on home size, equipment selection, installation requirements, and current market conditions, and are confirmed on your written quote. Rebate amounts and eligibility are subject to change by the issuing authority. Contact us for a free, accurate quote for your home.
Every home is different. Let our licensed technicians give you a free quote by phone; in-person inspections start at $150. We serve Toronto, Scarborough, Markham, North York, and all GTA areas.
