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Furnace Installation Cost in Ontario 2026: What You'll Actually Pay?
If you're comparing quotes for a new furnace this year, you've probably noticed the numbers vary wildly — one contractor says $4,000, another says $9,000, and you have no idea which one is padding the bill. Here's an honest breakdown of what actually drives furnace pricing in Ontario in 2026, so you can compare quotes with confidence.
The short answer
A new gas furnace installed in Ontario in 2026 typically costs $3,500–$10,000, with most homeowners landing between $4,500 and $7,000 for a standard replacement. The provincial average sits around $6,800 before tax, though a straightforward job in Toronto or Ottawa with an accessible mechanical room and existing ductwork in good shape often comes in below that.
What drives the price
1. Efficiency rating (AFUE)Ontario requires a minimum 95% AFUE for new gas furnace installations, so budget-tier "80% AFUE" furnaces you may see quoted elsewhere generally aren't an option here anymore. Within the 95–98% range:
Single-stage, 96%+ AFUE: roughly $4,000–$6,000 installed
Two-stage, 96%+ AFUE (the tier our York TM9Y and Goodman GCEC96 fall into): roughly $5,000–$7,500 installed
Modulating, 98% AFUE: roughly $7,000–$10,000+ installed
The gap between a 95% and a 98% AFUE furnace typically only saves $50–$100 a year on a standard 1,500 sq ft Ontario home — so a modulating furnace's higher price tag can take 15+ years to pay for itself in gas savings alone. Most homeowners are better served by a good two-stage furnace than by chasing the absolute highest efficiency number.
2. Brand Furnace brands cluster into pricing tiers. A mid-tier brand and a premium brand (think Lennox or Carrier) can carry the same AFUE rating, but the premium brand often costs 40–60% more for comparable performance — you're largely paying for extended warranties and dealer network reputation rather than a meaningfully better heat.
3. Installation complexity This is the variable most homeowners underestimate — and the one most worth asking about before signing anything. A simple like-for-like swap with existing venting and ductwork is inexpensive labour. Add any of the following and the price climbs:
Converting from a traditional metal flue to PVC venting (required for high-efficiency condensing furnaces)
Ductwork modifications or repairs
A tight or hard-to-access mechanical room
New gas line runs
4. Permits Ontario municipalities require a permit for furnace installations, typically $150–$350 depending on your city. A properly licensed contractor pulls this as a standard part of the job — if a quote doesn't mention it, ask why.
What "installed" should include
When a contractor quotes an "installed" price, it should cover:
The furnace unit itself
Removal and disposal of your old furnace
All labour — mounting, gas and electrical connections, venting, ductwork tie-in
Startup and combustion safety testing
The municipal permit
Basic thermostat connection
If a quote doesn't break these out, ask for an itemized version before you sign.
Rebates worth checking
Furnace-only upgrades qualify for more modest incentives than a full heat pump system, but it's still worth checking current programs before you buy:
Ontario Home Renovation Savings Program (via saveonenergy.ca) — eligibility and amounts depend on your specific equipment
Enbridge Gas rebates — available on qualifying high-efficiency furnaces, especially when paired with other upgrades
These programs change without much notice, so confirm current amounts directly rather than relying on last year's numbers.
Our current furnace lineup
We carry two-stage, 96%+ AFUE furnaces from three manufacturers, priced to reflect real Ontario market rates rather than a rock-bottom teaser number that grows once the crew shows up:
York TM9Y — 96% AFUE, multi-position ECM blower
Goodman GCEC96 — 96% AFUE, budget-friendly two-stage option
KeepRite G96CTN — 96.7% AFUE, variable-speed blower, dual fuel capable
Every installation includes a free in-home assessment, so the price you see is confirmed against your actual home before any work begins — not adjusted upward once the crew arrives.
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