How Much Does Furnace Repair Cost in Canada?

Furnace problems always seem to happen at the worst possible moment — usually the first cold snap. Most Canadian furnace repairs cost between $200 and $1,200, with the actual price depending on which part has failed, the age of your furnace, and whether it’s a scheduled visit or a 2 a.m. emergency call.

This guide gives you typical Canadian price ranges for the most common furnace problems, when repair is worth it, and when replacement is the smarter call.

Common furnace repair costs

• Diagnostic / service call fee: $80–$200 (often credited to repair if you proceed)
• Thermostat replacement: $150–$500 (more for smart thermostats)
• Igniter or flame sensor: $200–$500
• Capacitor replacement: $150–$400
• Blower motor: $400–$1,200
• Heat exchanger crack: $1,500–$3,500 (often the trigger for replacement instead)
• Gas valve: $400–$900
• Control board: $500–$1,200
• Inducer motor: $400–$800

Emergency vs. scheduled service

After-hours, weekend, and holiday service calls in Canada typically run 1.5–2x the standard rate. A $400 weekday repair can be $700–$800 on a Saturday night. If your furnace fails on Friday afternoon and you can survive with space heaters or a fireplace until Monday, you’ll often save hundreds.

When to repair vs. replace

Repair usually makes sense when:

• Your furnace is less than 10 years old
• The repair is under $500
• It’s the first major issue in the furnace’s lifetime
• The heat exchanger is intact

Replacement usually makes sense when:

• Your furnace is 15+ years old (typical Canadian furnace lifespan is 15–25 years)
• The repair is more than $1,500 — or more than 50% of replacement cost
• The heat exchanger is cracked (this can release carbon monoxide)
• You’re paying for the second or third repair in 2–3 years
• Your AFUE rating is below 90% (modern high-efficiency furnaces are 95–98% AFUE)

Replacement cost ranges

• Mid-efficiency furnace (rare now): $2,500–$4,000 installed
• High-efficiency furnace (95–98% AFUE): $4,000–$8,000 installed
• Premium variable-speed high-efficiency: $6,000–$12,000 installed
• Heat pump replacement (electric, replacing gas): $8,000–$18,000 installed

Replacement pricing varies significantly by Canadian region and the complexity of your existing ductwork. A simple like-for-like swap is the cheapest scenario.

Rebates and incentives

• Federal support such as the Canada Greener Homes Initiative has funded energy-efficient upgrades in the past, but federal intake has since closed — confirm current federal, provincial, and utility rebates before budgeting.
• Enbridge HER+ (Ontario) — rebates for high-efficiency furnaces and other measures
• Provincial programs — Save on Energy (ON), Rénoclimat (QC), Efficiency Nova Scotia, and others run periodic furnace incentives

How to find a trustworthy HVAC technician

A few rules that protect Canadian homeowners from bad furnace work:

• Verify they have TSSA (Ontario), provincial gas-fitter licensing, and current liability insurance
• Ask for the diagnostic in writing, including the part numbers being replaced
• Don’t accept a "your heat exchanger is cracked" diagnosis without seeing the crack — request a video inspection
• Get a second opinion on any repair quote over $1,000

Annual maintenance ($150–$250 in most Canadian markets) catches small issues before they become big ones and extends furnace life. Most warranties also require it.

Find a vetted professional near you

Need a technician now? Browse vetted furnace repair companies across Canada on Experts.ca and request service in your area.

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