Furnace Replacement Cost in Ontario (2026): Furnace vs. Heat Pump for Windsor-Essex Homes
What a new gas furnace costs in Windsor-Essex in 2026, how heat pumps compare in our mild humid climate, and which Ontario rebates may apply.
Updated · LocalHomePro editorial team · Windsor, ON
A high-efficiency gas furnace installed in Windsor-Essex costs $4,800 to $8,500 in 2026. Replacing the furnace and air conditioner together runs $9,500 to $16,000. A cold-climate heat pump, which replaces your air conditioner and takes over most of your heating, costs $9,000 to $19,000 before rebates.
Which one makes sense depends on your house, your current equipment and what the rebate programs are doing this year. Here is how to think it through.
Furnace replacement costs in Windsor-Essex
| Equipment | Installed cost (2026, CAD) | Notes |
|---|---|---|
| Single-stage 96% AFUE gas furnace, 60 to 80k BTU | $4,800 to $6,500 | The budget option. Fine for small bungalows. |
| Two-stage or modulating 96 to 98% furnace | $6,000 to $8,500 | Quieter, better humidity control, more even heat. |
| Furnace + central AC (2 to 3 ton) together | $9,500 to $16,000 | Most common replacement in 1990s to 2000s homes. |
| Cold-climate heat pump + air handler (all-electric) | $11,000 to $19,000 | Replaces furnace and AC. Best where gas is unavailable. |
| Cold-climate heat pump paired with new gas furnace (hybrid) | $13,000 to $22,000 | Heat pump does most of the work; gas covers the coldest days. |
| Ductless mini-split, single zone | $4,500 to $8,000 | For additions, century homes without ducts, or suites. |
The spread inside each row comes from brand tier, whether new venting or electrical is needed, duct modifications, and whether you are converting from a mid-efficiency furnace (which means a new sidewall vent and condensate drain).
Prices are estimates. Insist on a written quote that names the exact model.
When to replace instead of repair
Furnaces in Windsor last 18 to 25 years. The common rule is to replace if the unit is past 15 years and the repair exceeds about a third of the cost of a new one. Beyond the math, replace sooner if:
- The heat exchanger is cracked (a carbon monoxide risk; the technician will shut the unit down)
- It is a mid-efficiency (80% AFUE) unit from the 1990s and your gas bills are high
- It short-cycles or cannot keep the house even, which often means it was oversized to begin with
- You are already replacing the air conditioner, since the bundle saves on labour
The case for a heat pump in Windsor-Essex
Windsor is one of the mildest places in Canada. The design temperature for heating is around minus 17, and most winter days are between minus 5 and plus 5. Modern cold-climate heat pumps keep close to their full rated capacity at minus 15 and still produce useful heat at minus 25 and below. Our climate is close to ideal for them.
The summer side matters just as much. Windsor has the most humid summers in Ontario, and a variable-speed heat pump running long, slow cycles pulls far more moisture out of the air than a conventional single-stage air conditioner. Many homeowners who switch notice the house feels less clammy before they notice the bills.
All-electric vs. hybrid. If you are on Enbridge natural gas, a hybrid (dual-fuel) system is the usual recommendation: a heat pump handles the shoulder seasons and most of winter, and the gas furnace takes over below a set outdoor temperature when gas becomes cheaper per unit of heat. It also means you are not betting the house on your electrical panel and ductwork being up to the job. If you heat with propane, oil or electric baseboards, as many homes in rural Lakeshore, Essex, Kingsville and Leamington do, an all-electric cold-climate heat pump usually pays back fast.
Ducts and panels. Older homes in Walkerville and Sandwich Town often have large gravity-era trunk ducts that work well with a heat pump, while 1990s to 2010s homes in LaSalle and Tecumseh with flex duct in the attic may need upgrades. Expect $500 to $2,000 if a panel or circuit upgrade is needed, more if you have a 100 amp panel that is already full.
Operating cost comparison
With Ontario electricity around 10 to 18 cents per kWh depending on the plan and time of use, and natural gas (including carbon charge and delivery) around 35 to 50 cents per cubic metre, a hybrid system typically saves 20 to 40 percent on heating versus a furnace alone, and the heat pump beats a standard AC on cooling as well. Against propane or oil, savings are usually 40 to 60 percent. Your contractor can run your actual bills through a calculation.
Rebates and financing (verify before you count on them)
Programs have changed several times in the past three years, and the details below may be out of date by the time you read this. Confirm current terms before you sign anything.
- Ontario Home Renovation Savings Program (delivered through Save on Energy and Enbridge) has offered rebates for cold-climate heat pumps, often in the thousands of dollars, along with rebates for insulation, air sealing, windows and smart thermostats. Eligibility has at times depended on what fuel you currently heat with and whether a pre- and post-retrofit energy assessment is done.
- Canada Greener Homes Loan has provided interest-free loans of up to $40,000 over 10 years for eligible retrofits including heat pumps, with an energy audit required before and after.
- Enbridge has periodically offered rebates for high-efficiency furnaces, smart thermostats and whole-home retrofits for gas customers.
Your HVAC contractor should know which programs are currently paying out and handle the paperwork. If a salesperson promises a rebate but cannot show you the program’s current eligibility page, treat the quote as if the rebate does not exist.
Who is allowed to do the work
In Ontario, anyone installing or servicing a gas furnace must hold a TSSA gas technician licence (G2 or G1 for residential). The electrical connection needs an ESA permit. The company should carry WSIB coverage and liability insurance. Also know that since 2018 it has been illegal in Ontario to sell furnaces, air conditioners, water heaters and similar equipment door to door without an appointment, so a knock on the door is itself a warning sign.
Sizing: smaller than you think
Most Windsor-Essex homes between 1,200 and 2,000 sq ft need a 60,000 to 80,000 BTU furnace and a 2 to 3 ton heat pump or air conditioner. A proper contractor does a CSA F280 heat loss and gain calculation rather than copying the old unit’s size. Oversized equipment short-cycles, dehumidifies poorly and dies young.
Getting quotes
Get two or three written quotes that name the exact models, list included electrical and duct work, state the warranty terms (parts and labour), and show any rebate as a separate line so you can see the real price. Ask each contractor to explain why they picked the size they did.
We match Windsor-Essex homeowners with TSSA-licensed HVAC contractors who install furnaces, heat pumps and hybrid systems every week and know which rebates are live. Quotes are free with no obligation. Get free HVAC quotes.
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