Ontario · 16 local services · checked September 28, 2026

Home energy audits and home testing in Toronto

Toronto gets about 3,559 heating degree-days a year, 46% of its houses were built before 1961, and 28 NRCan-licensed service organizations list its postal codes. Pick a service for the local details.

Energy audits in Toronto → All 16 services
A Victorian red-brick semi-detached house with a front porch in autumn

How Toronto is built

Toronto's houses by when they were built Ten house shapes, one for each tenth of Toronto's 455,985 houses. Before 1961: 46%, 1961–1990: 35%, 1991–2000: 6%, 2001 or later: 13%. Older houses glow hotter.
  • Before 1961 46%
  • 1961–1990 35%
  • 1991–2000 6%
  • 2001 or later 13%
Each house stands for one in ten of Toronto's 455,985 houses (single-detached, semi-detached, row and duplex), drawn by when it was built. The glow shows the usual pattern: older houses tend to be leakier and less insulated. Snowfall scales with heating degree-days. Sources: Statistics Canada 2021 Census (table 98-10-0233-01), NRCan HOT2000 climate data.

Toronto at a glance

Climate

Toronto gets about 3,559 heating degree-days a year and has a winter design temperature of −16.3°C, according to NRCan's HOT2000 climate data for Toronto City Centre.

Housing

Of Toronto's 455,985 houses (single-detached, semi-detached, row houses and duplexes), 46% were built before 1961 and 81% before 1991, according to the 2021 Census. The typical house dates from 1961–1970.

Heating

In the Toronto area, 59% of households heat mainly with a forced-air furnace, 8% with a boiler and radiators, 5% with electric baseboards and 4% with a heat pump; natural gas is the main heating energy for 52% of households and electricity for 18% (Statistics Canada, 2023).

Radon

Health Canada's 2012 survey found 2.7% of 73 homes tested in the City of Toronto Health Unit health region above the guideline. The larger 2024 Cross-Canada survey reports 4.5% (1 in 22) of houses at or above the guideline for Toronto Metro Area (Toronto CMA).

Local service guides for Toronto

Energy audits and tests

An energy advisor’s kit on a front-hall bench: infrared camera, pressure gauge with tubing, tape measure, headlamp and a floor sketch

Home energy audit

28 licensed organizations
A red blower-door panel with a large fan fitted into the front doorway of a brick bungalow, a pressure gauge on a stool inside

Blower door test

3,559 degree-days
Hands holding an infrared camera aimed at a ceiling corner beside a frosty window; the screen shows a cold streak

Thermal imaging inspection

3,559 degree-days
A kitchen table with a house floor plan, a laser measure, a tape measure and a laptop showing the plan

Heat loss calculation

Design temp −16.3°C
A duct-testing fan on a basement floor connected by flexible duct to a furnace, a pressure gauge hanging from a joist

Duct leakage testing

59% forced-air
A gloved hand inserting a combustion analyzer probe into a furnace flue pipe in a basement

Combustion safety test

52% heat with gas
A heat recovery ventilator on a basement wall with four insulated ducts running up between the joists

Ventilation and humidity assessment

12% built since 2001
Loose-fill insulation between attic joists, a yellow ruler showing its depth and frost on the roofing nails above

Attic insulation inspection

81% built before 1991
Utility bills and a phone showing a monthly energy-use chart on a kitchen table

Energy bill analysis

Toronto Hydro

Home health tests

A small digital radon monitor on a bookshelf in a finished basement family room

Radon testing

4.5% at or above guideline (2024)
A carbon monoxide alarm on an upstairs hallway wall outside the bedrooms at night

Carbon monoxide testing

Required by law
A moisture meter pressed into water-stained basement drywall, an air-sampling pump on a tripod nearby

Mold and air quality testing

81% built before 1991
A gloved hand holding a sealed sample bag above vermiculite insulation between attic joists

Asbestos and vermiculite testing

81% built before 1991
A gloved hand swabbing layers of cracked old paint on a wooden window sill

Lead paint testing

46% built before 1961
Filling a water-sample bottle at a farmhouse kitchen tap with the aerator removed, snowy fields and a barn outside

Well water testing

Wells rare

For businesses and buildings

An auditor walking between rooftop heating and cooling units on a snowy commercial roof

Commercial energy audit

7 incentive programs

Who does energy evaluations in Toronto

28 NRCan-licensed service organizations list Toronto postal codes. See the list with phone numbers and coverage →

Ontario directory: verified advisor profiles for Toronto, with prices where published.

City programs in Toronto

Eco-Roof Incentive Program

City grants for green roofs ($100/m2, max $100,000, plus up to $1,000 for a structural assessment) and cool roofs ($5/m2 with a new membrane or $2/m2 for a coating, max $50,000). Existing residential buildings are eligible; apply before work starts.

Rebates and financing for Toronto homes

Provincial · needs an evaluation Home Renovation Savings — Home Energy Assessment path Up to $10,000 per home for insulation, windows and air sealing, plus $600 back on your assessments — if the follow-up assessment is done by December 31, 2026 Open · deadline Provincial Home Renovation Savings — direct rebates (no assessment) Heat pumps up to $7,500 ($12,000 ground-source), solar with battery up to $10,000, plus attic, thermostat and appliance rebates — no assessment needed Open Municipal · needs an evaluation Toronto Home Energy Loan Program (HELP) City loans up to $125,000 (or 10% of your home's assessed value) for energy retrofits, repaid on your property tax bill Open Federal CMHC Eco Improvement premium refund 25% back on your CMHC mortgage insurance premium after $20,000 of energy renovations Open

Cities near Toronto

Vaughan16 kmMarkham19 kmRichmond Hill20 kmMississauga23 kmPickering29 kmBrampton29 km All 70 cities →

Sources

Checked September 28, 2026.

Planning upgrades in Toronto?

Tell us where you are and what you’re planning. We’ll connect you with a registered service organization for your area — no spam, no shared lead lists.

Email us what you’re planning, your postal code and the type of building (a house, a duplex or triplex, or a larger multi-unit building) — we’ll reply with registered service organizations for your area and which rebates apply.

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