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Durham Region Furnace prices Checked Nov 2026
New Furnace Prices in Oshawa and Durham Region (2026): Oshawa, Whitby, Ajax, Pickering
What Durham heating contractors publish for a furnace replacement, what a two-stage or furnace-and-AC job adds, and the rebates that are real in 2026.
Short version: Most furnace replacements in Durham Region are priced between $4,500 and $6,500. Published ranges run from about $3,200 for a basic 96% furnace to $9,500 for a two-stage or variable-speed unit. A furnace and central air together: $6,500 to $12,000 (an Ajax contractor’s price list). There is no Ontario rebate for a gas furnace in 2026.
Durham Region furnace price estimator
What Durham Region furnace contractors are publishing
We checked the price pages Durham Region heating contractors published in 2026. Four contractors cluster at $4,500 to $6,500 for a typical job.
| Source (published price page) | What it says | Date on page |
|---|---|---|
| Cassar Heating & AC (Oshawa) | Mid-efficiency two-stage furnace $3,500-$6,000 fully installed, incl. removal and connection to existing ducts and gas line. | Jul 2026 |
| Aire One East (Whitby) | Oshawa: 96%+ $5,500-$8,500; two-stage or variable speed $6,500-$9,500. | Jul 2026 |
| HVAC Center | Oshawa 96% furnace $4,500-$5,500, incl. removal, permit and PVC venting. | Feb 2026 |
| Madina Mechanical (Ajax) | 96% $3,200-$4,800; 97-98% $4,500-$7,000 (its furnace prices are stated as including HST); furnace + AC $6,500-$12,000. | Sep 2026 |
Ranges as each company published them, checked November 2026. Most pages do not say whether HST is included; Madina Mechanical says its Ajax furnace prices include HST. These are planning numbers, not quotes.
What moves the price in Durham Region
- Efficiency and stage: moving from a 96% single-stage to a 97-98% two-stage or variable-speed furnace adds roughly $1,000 to $3,000 in these price lists.
- Venting or duct changes: $300 to $1,500 (Aire One East).
- Furnace and AC together: $6,500 to $12,000 (Madina Mechanical, Ajax).
- What is included: some Oshawa prices include removal, permit and PVC venting; others do not. Compare like with like.
Permits and who can do the work
We did not find a published Durham Region fee for a stand-alone furnace permit to quote here. The contractor price pages we checked either include the permit or list $100 to $400 for it. Ask whether a permit is being pulled and whether it is in the price.
Only a TSSA-registered contractor with a certified gas technician should disconnect and connect a gas furnace. Ask for the registration number on the quote.
Rebates in 2026: what is real
There is no Ontario rebate for a new gas furnace in 2026. The Home Renovation Savings Program pays for heat pumps, not furnaces, and Enbridge’s Home Efficiency Rebate ended intake on January 27, 2025. Be wary of any quote that promises a furnace rebate.
- Home heated with natural gas: a cold-climate air-source heat pump earns $500 per ton, up to $2,000; ground-source $3,000.
- Home heated with electricity, oil, propane or wood: $1,250 per ton, up to $7,500; ground-source $2,000 per ton, up to $12,000.
- Federal: on October 8, 2026 Ottawa announced a heat pump rebate of up to $10,000 for households below the median income and $2,000 for other eligible homeowners, for cold-climate air-source heat pumps.
If you are replacing a furnace anyway, price a heat pump or a dual-fuel setup at the same time: heat pump cost in Ontario and heat pump rebates.
How to get a fair Durham Region quote
- Get two or three quotes on the same written scope: furnace model and efficiency, stage (single, two-stage or modulating), venting, duct changes, permit, removal and warranty.
- Ask for HST shown as a separate line.
- Ask whether the price includes a load calculation or just matches the old furnace size. See HVAC sizing mistakes.
- Have us look at the quote: free HVAC quote review and how to compare HVAC quotes.
Furnace prices in other citiesToronto, Mississauga, Brampton · Markham, Vaughan, Newmarket, Aurora · Guelph · Ottawa
Questions people ask
How much is a new furnace in Oshawa in 2026?
Published Oshawa prices run from $3,500 to $6,000 fully installed for a two-stage furnace (Cassar) to $4,500 to $5,500 for a 96% furnace including permit and venting (HVAC Center). Two-stage and variable-speed units run up to about $9,500.
What does a furnace cost in Ajax, Pickering or Whitby?
An Ajax contractor lists $3,200 to $4,800 for a 96% furnace and $4,500 to $7,000 for 97-98%, including HST. We found no Pickering-specific page; Durham prices are close across the region.
How much is a furnace and AC together in Durham?
$6,500 to $12,000, according to an Ajax contractor’s published price list.
Is there a furnace rebate in Ontario in 2026?
No. Home Renovation Savings pays for heat pumps, and Enbridge’s Home Efficiency Rebate closed to new applicants on January 27, 2025.
Do these prices include HST?
Most pages do not say; the Ajax contractor says its furnace prices include it. Ask for HST as a separate line.
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Prices compiled from published price pages of Cassar Heating & AC, Aire One East, HVAC Center, Madina Mechanical, checked November 2026. City permit fees and rebate amounts from the official pages linked above. Ranges, not quotes.
