How Much Does Roof Replacement Cost in Ontario
2026 Ontario roof replacement costs: per-square-foot ranges for asphalt, metal, and flat roofs, what drives the bill, and when a permit is needed.
How Much Does It Cost to Install a Furnace in Ontario
Furnace installation costs in Ontario in 2026 for new builds and homes getting first-time heating: installed ranges by home size ($3,500–$8,500), full ductwork costs ($7,000–$12,000+), Enbridge's new gas service rules (20 metres free, $170.06/metre beyond), and why new builds don't qualify for retrofit rebates.
Applies in: Ontario
A replacement guide tells you what a new furnace costs when one already sits in your basement. This page is for the other two situations: a new build where the furnace has never existed, and an existing home getting ducted heating for the first time. Both are more expensive than a swap, and both have cost traps a replacement quote never shows.
Every range below comes from current 2026 Ontario installer pricing and is attributed. Prices are quoted before Ontario's 13% HST unless stated otherwise.
The headline numbers
Installed-price ranges in Canadian dollars for natural gas furnaces, typically before HST:
| Home size | Furnace capacity | Installed range |
|---|---|---|
| Under 1,200 sq ft | 40,000–60,000 BTU | $3,500–$5,000 |
| 1,200–1,800 sq ft | 60,000–80,000 BTU | $4,000–$6,000 |
| 1,800–2,500 sq ft | 60,000–80,000 BTU | $4,500–$6,500 |
| 2,500 sq ft and up | 80,000–100,000+ BTU | $5,500–$8,500 |
Most Ontario homeowners land between $4,500 and $6,500 installed. The ranges above assume ductwork, gas service, and venting exist or need only standard work. The situations below are where the number leaves the range.
Situation 1: new construction
In a production build, you are not really buying a furnace — it is buried inside the builder's package. The money question is the upgrade: builders install an entry-level unit and sell stepped-up equipment as an upgrade option. The upgrade price is the only furnace number you negotiate, so ask for the exact model, AFUE, staging, and blower of both the included unit and the upgrade. The price difference should roughly track the equipment difference; if it doesn't, price the same equipment from an independent installer after possession and compare.
In a custom or owner-managed build, the furnace is a real line item and you pay the full installed range above. Two timing decisions save real money: rough the AC lines in at the same time (a furnace plus AC combo runs $7,500 to $14,000 installed, versus two separate mobilizations later), and finalize the furnace choice before drywall so the ductwork is designed around it rather than adapted afterward.
Situation 2: a home with no ductwork
This is the expensive version of the job, and it is what most of the "furnace installation cost" searches are actually asking about. A home heated by baseboards or space heaters needs the entire distribution system built from scratch, and the full project can run $7,000 to $12,000 or more.
The ductwork is the controlling line item. A major ductwork overhaul on an existing system already adds $3,000 to $7,000; a full fresh install is at the top of that band and beyond. Ask for the ductwork priced as its own line, and ask whether exposed runs through unfinished spaces (basement, closets, attic) can substitute for finished-wall routing — it is the cheapest legitimate way to trim this number. The furnace unit itself costs the same as in the table above; the duct system is what makes the quote look unfamiliar.
Getting gas to the property
If the lot has no gas service, this is a separate project with its own rules, and it needs to start early — Enbridge requires the new customer account created and a completed application from your heating contractor before it commits to a connection date.
For new residential services, Enbridge installs one service line per civic address at no charge provided the distance from the property line to the meter location is 20 metres or less. Longer runs are charged at $170.06 per metre beyond the 20-metre allowance, invoiced on the first gas bill. If no gas main exists at the street, Enbridge decides feasibility case by case, and customers may have to pay a contribution in aid of construction — that number is project-specific and should be nailed down before the furnace quote is finalized.
Two smaller line items to know: the first safety inspection when gas is first introduced to a premise is free, and temporary construction heat activation is $128.35 per occurrence.
What a new-install quote should itemize
A quote that is one big number is a quote you cannot compare. For a new install, expect these line items, each priced separately:
- Furnace unit and standard installation labour: installation labour alone typically runs $1,000 to $3,000 depending on complexity.
- Ductwork: full install, partial, or modification — the largest swing line.
- Venting: switching or adding venting runs $500 to $1,500.
- Gas piping or electrical changes: $200 to $700 where line work is needed.
- Thermostat: $150 to $400, with smart models at the high end.
- Permits and inspections: $50 to $300; the installer normally handles the paperwork.
- Electrical panel work: $1,500 to $4,000 where a panel upgrade is required (electric furnaces and heavy electrical additions).
Get three itemized quotes and compare line by line, not totals. Rural properties often run higher — fewer installers, equipment transport, and limited contractor availability add to the bill.
Fuel choice for a new install
Since every new gas furnace in Canada is 95% AFUE or higher, the fuel decision matters more than the efficiency tier. Gas furnaces cost more upfront — the unit runs $3,000 to $4,500 with total installed costs of $4,000 to $7,500 — but are the cheapest to run. Electric furnaces are cheaper to buy ($1,500 to $2,500 for the unit, $3,000 to $5,500 installed) but cost two to three times more to operate at Ontario's time-of-use electricity rates, roughly 11 to 17 cents per kWh. Electric makes sense where there is no gas main and no plan to get one, or in smaller well-insulated homes. Oil sits in the rural middle: $5,500 to $8,500 installed with variable operating costs, and many rural Ontario homeowners are switching to propane or electric.
Rebates: why new builds pay full price
Ontario's current program, Home Renovation Savings, is a retrofit program: it is built around pre- and post-installation energy assessments of existing homes, and a gas furnace is not itself a rebated measure under the program. New construction does not fit that program design, so budget the install at full price. The interest-free Canada Greener Homes Loan (up to $40,000) closed to new applicants on October 1, 2025, so it cannot be counted on for a new install either. Confirm any program's current terms before counting on a rebate — and never let a promised rebate decide a purchase before the program administrator confirms eligibility in writing.
Rebate and loan status, checked November 10, 2026
Two program facts on this page changed after it was written, and both were re-checked against the programs' own pages on November 10, 2026. Home Renovation Savings pays for heat pumps and the other upgrades listed above, not for a gas furnace, and its bundled path requires the energy assessments before and after the work. The Canada Greener Homes Loan is closed to new applicants: October 1, 2025 was the last day to apply, and existing approved borrowers continue under their own loan terms.
One newer program does not change the new-build picture yet. The federal National Heat Pump Rebate was announced on October 8, 2026, with a retroactivity period starting November 1, 2026 and applications opening in early 2027. It pays for heat pumps, not gas furnaces, so a new gas install still budgets at full price. Price a heat-pump option before committing to gas if the rebate could apply to your home.
The Enbridge service charges on this page were also re-checked in the Rate Handbook effective October 1, 2026: the extra-length charge is $170.06 per metre beyond the free 20 metres, before HST; temporary construction heat activation is $128.35 per occurrence; and the first safety inspection when gas is first introduced to a premise is free.
The install sequence in a build
Get the order right and nothing gets ripped out:
- Heat-loss calculation first — the BTU band, not square footage, picks the furnace.
- Gas service application early — the contractor's paperwork and your Enbridge account gate the connection date.
- Permits pulled by the installer; only a TSSA-certified G2 or G3 gas technician does the gas work.
- HVAC rough-in before drywall — furnace, ducts, venting, gas piping, electrical all in one stage.
- Commissioning, inspection sign-off, and documentation: model, install date, and warranty paperwork filed with the new-home documents, since the heating system falls under the new-home warranty rather than any retrofit rebate program.
Related guides
- How much does furnace replacement cost in Ontario: the companion page for homes that already have a furnace — replacement ranges, the extras that change a swap quote, the TSSA licensing rules, and the door-to-door sales ban.
- How much does a heat pump cost in Ontario: the 2026 rebate picture for heat pumps — worth pricing before committing to a new gas install.
- How much does an electrician cost in Ontario: panel upgrades and electrical work often appear as line items on a furnace quote — here are the 2026 Ontario rates.
- How to become a gas technician (G3/G2) in Ontario: the licence behind the furnace installer's invoice — how technicians earn the G3 and G2 certificates.
2026 Ontario installed-price ranges by home size
| Under 1,200 sq ft (40,000–60,000 BTU) | $3,500–$5,000 installed |
|---|---|
| 1,200–1,800 sq ft (60,000–80,000 BTU) | $4,000–$6,000 installed |
| 1,800–2,500 sq ft (60,000–80,000 BTU) | $4,500–$6,500 installed |
| 2,500 sq ft and up (80,000–100,000+ BTU) | $5,500–$8,500 installed |
| Full duct install (home with no ducts) | $7,000–$12,000+ total |
| Furnace + AC combo | $7,500–$14,000 installed |
Ranges in Canadian dollars, typically quoted before 13% HST. Ranges drawn from current 2026 Ontario installer pricing; the prose above explains each figure.
The new-install sequence
- Size it properlyA proper heat-loss calculation picks the BTU band for the actual house — ceiling height, insulation, and windows included, not just square footage
- Get gas to the propertyEnbridge installs one residential service line free within 20 metres of the property line; longer runs are charged per metre and main extensions may need a construction contribution
- Permits and the right technicianThe installer pulls the permits and a TSSA-certified G2 or G3 gas technician does the gas work; installation passes inspection before the drywall closes
- Install during rough-inIn new construction the furnace, ductwork, venting, gas piping, and electrical all go in during the HVAC rough-in stage
- Commission and documentSystem tested and balanced, inspection signed off, and the model, install date, and warranty paperwork filed with the new-home documents
Questions people ask
How much does it cost to install a furnace in a new build in Ontario?
For a natural gas furnace in new construction, 2026 installed ranges run $3,500 to $5,000 for a home under 1,200 sq ft, $4,000 to $6,000 for 1,200 to 1,800 sq ft, $4,500 to $6,500 for 1,800 to 2,500 sq ft, and $5,500 to $8,500 for 2,500 sq ft and up. In a production build the furnace is part of the builder's package — you pay for it indirectly, and the only decision is whether the builder-grade unit is worth upgrading before drywall.
How much does it cost to add a furnace to a house with no ducts?
This is the expensive version of the job. A full duct installation in a home heated by baseboards or space heaters can push the total project to $7,000 to $12,000 or more, before HST. The ductwork alone is the line item that separates this from a like-for-like swap, so get it priced separately and ask whether running exposed ducts in unfinished spaces (basement, closets) can trim the number.
How much does Enbridge charge to run a gas line to a new house?
For a new residential service, Enbridge installs one service line per civic address at no charge as long as the distance from the property line to the meter location is 20 metres or less. Beyond 20 metres, you pay an extra-length charge of $170.06 per metre (per the current Rate Handbook). If no gas main exists at the street, the extension may require a contribution in aid of construction, and that number is project-specific.
What size furnace do I need for a 2,000 square foot home in Ontario?
A 2,000 sq ft home typically falls in the 60,000 to 80,000 BTU band, with 2026 installed costs of $4,500 to $6,500. Have the installer run a proper heat-loss calculation rather than sizing by square footage alone — ceiling height, insulation, and window area all move the number, and an oversized furnace short-cycles and costs more to buy.
Are all new gas furnaces in Canada high-efficiency?
Yes. Every new gas furnace sold in Canada is 95% AFUE or higher — the old mid-efficiency 80% tiers no longer exist. So the efficiency question for a new install is no longer 'high-efficiency or not' but which tier of high-efficiency: 95–96% single-stage entry units versus 96–98% two-stage or modulating units.
Should I get a gas or electric furnace for a new install in Ontario?
Compare the full picture. A gas furnace costs more to install — the unit runs $3,000 to $4,500 with total installed costs of $4,000 to $7,500 — while an electric furnace unit costs $1,500 to $2,500 with totals of $3,000 to $5,500. But electric heating runs 2 to 3 times the operating cost of gas at Ontario's time-of-use electricity rates (roughly 11 to 17 cents per kWh), so gas usually wins on lifetime cost wherever a gas main is available.
Do new builds qualify for furnace rebates in Ontario?
Generally no. The current provincial program, Home Renovation Savings, is a retrofit program built around pre- and post-installation energy assessments of existing homes, and a gas furnace is not itself a rebated measure under the program: its published upgrade lists cover heat pumps, insulation, windows and doors, air sealing, solar and batteries, and smart thermostats. Budget the new install at full price and treat any rebate as a bonus only if the program administrator confirms eligibility in writing.
How long does a new furnace installation take?
In an existing home, most installs take one to two days depending on complexity. In new construction, the furnace goes in during the HVAC rough-in stage, before drywall — the equipment install itself is quick, but it is sequenced with ductwork, venting, gas piping, and electrical work, so the mechanical contractor coordinates it with the rest of the build.
Who is allowed to install a gas furnace in Ontario?
Only a TSSA-certified gas technician holding a G2 or G3 certificate. That applies to new builds and retrofits alike — an unlicensed install can void the manufacturer warranty and create insurance problems. Ask for the technician's certificate number before work begins.
Should I install the air conditioner at the same time as the furnace?
If you want cooling eventually, yes — doing it together is one of the cheapest timing decisions on this page. A furnace plus AC combo runs $7,500 to $14,000 installed, versus paying for two separate mobilizations later. The equipment is matched, the ductwork is designed for both, and the labour overlaps.
Sources
- Dynamic Heat & Cool, New Furnace Cost in Ontario — new furnace $3,500–$7,500 installed, most homeowners $4,500–$6,500; size table by home size and BTU; every new gas furnace in Canada is 95% AFUE or higher; Canada Greener Homes Grant closed, Home Renovation Savings is the current program.
- Dynamic Heat & Cool, New Furnace Cost Ontario 2026: What Nobody Tells You About Pricing — gas furnace unit $3,000–$4,500, electric unit $1,500–$2,500; electric heating 2–3x the operating cost of gas at 11–17 cents per kWh; oil $5,500–$8,500 installed; ductwork overhaul $3,000–$7,000; panel upgrade $1,500–$4,000; Greener Homes Loan closed to new applicants October 1, 2025.
- ALP Heating, What Is the Cost of Installing a Furnace in Ontario? — average installation $3,500–$7,500, high-efficiency models up to $9,000 or more; installation labour $1,000–$1,500 in major cities; TSSA-licensed technicians required.
- RB Heating ClimateCare via Urban Splatter, How Much Does a Furnace Replacement Cost in Ottawa? (2026 Price Guide) — labour $1,000–$3,000; full duct install pushes the total to $7,000–$12,000+; venting $500–$1,500; thermostat $150–$400; permits $50–$300; gas or electrical changes $200–$700; no rebate on a gas furnace under Home Renovation Savings.
- LG Home Comfort, New Furnace Cost in Ontario: 2026 Pricing Guide — furnace-only $4,000–$9,500; furnace + AC combo $7,500–$14,000; City of Toronto $750 furnace incentive plus $250 ECM bonus (Toronto only); Enbridge Home Winterproofing Program covers insulation, draft-proofing, and smart thermostats, not furnaces.
- Enbridge Gas, Rate Handbook (effective October 1, 2026) — Extra Length Charge $170.06 per metre beyond the free 20 metres, measured from the property line to the meter location; Construction Heat Activation $128.35 per occurrence; Safety Inspection $128.35 per premise with the first inspection free when gas is first introduced; rates excluding HST.
- Enbridge Gas, Conditions of Service for General Service Customers (June 1, 2026) — one service line per civic address at no charge within 20 metres of the property line; excess length charged per metre under Rider G of the Rate Handbook; main extensions that are not feasible require a contribution in aid of construction.
- Home Renovation Savings, Energy Assessment Required Upgrades — assessment path requires pre- and post-installation energy assessments and two or more upgrades (heat pump water heater, windows and doors, air sealing, insulation); no-assessment measures are heat pumps, solar panels plus battery storage, and smart thermostats; no gas furnace measure.
- Government of Canada, Closed: Greener Homes Grant — Ontario — program closed; December 1, 2025 was the deadline for Ontario applicants to complete their post-retrofit EnerGuide evaluation; HER+ closed intake February 5, 2024.
- Government of Canada, National Heat Pump Rebate — online portal in early 2027; $2,000, or up to $10,000 for low- to median-income households; installs from November 1, 2026 eligible retroactively; expected to close March 2034; parameters still being finalized.