Ontario · 16 local services · checked September 28, 2026

Home energy audits and home testing in Mississauga

Mississauga gets about 3,664 heating degree-days a year, 7% 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 Mississauga → All 16 services
A Victorian red-brick semi-detached house with a front porch in autumn

How Mississauga is built

Mississauga's houses by when they were built Ten house shapes, one for each tenth of Mississauga's 160,175 houses. Before 1961: 7%, 1961–1990: 49%, 1991–2000: 22%, 2001 or later: 21%. Older houses glow hotter.
  • Before 1961 7%
  • 1961–1990 49%
  • 1991–2000 22%
  • 2001 or later 21%
Each house stands for one in ten of Mississauga's 160,175 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.

Mississauga at a glance

Climate

Mississauga gets about 3,664 heating degree-days a year and has a winter design temperature of −18.3°C, according to NRCan's HOT2000 climate data for Toronto International.

Housing

Of Mississauga's 160,175 houses (single-detached, semi-detached, row houses and duplexes), 7% were built before 1961 and 57% before 1991, according to the 2021 Census. The typical house dates from 1981–1990.

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

In Health Canada's 2012 survey, none of the 89 homes tested in the Peel Regional Health Unit health region were above the guideline, a small sample that doesn't rule radon out. 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 Mississauga

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

3,664 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

3,664 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 −18.3°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

21% 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

57% built before 1991
Utility bills and a phone showing a monthly energy-use chart on a kitchen table

Energy bill analysis

Alectra Utilities

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

57% built before 1991
A gloved hand holding a sealed sample bag above vermiculite insulation between attic joists

Asbestos and vermiculite testing

57% built before 1991
A gloved hand swabbing layers of cracked old paint on a wooden window sill

Lead paint testing

7% 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

5 incentive programs

Who does energy evaluations in Mississauga

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

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

City programs in Mississauga

CCET Home Energy Coaching

Free one-on-one coaching (a 45-minute call, with follow-ups) from the Centre for Community Energy Transformation, a municipally funded nonprofit supported by the City of Brampton. It helps homeowners and renters prioritize upgrades, understand costs and find rebates. Open only to residents of Brampton, Mississauga and Caledon.

CCET Energy Retrofit Assistance (pilot)

Free pilot for qualifying Peel Region homeowners with high energy bills (for example, households that recently received government income support): a full EnerGuide home energy audit plus selected upgrades such as an air-source heat pump, heat pump water heater or insulation (averaging about $11,500 per household), at no cost and with no loan.

Peel Energy Grant Program (TRCA Climate Ready Homes / Building Up, supported by Peel Region)

New Peel Region-supported program for owners of detached, semi-detached and townhouse homes in Peel: free home energy assessments, free personalized energy case management and rebates for heat pump installations (amounts not yet published). TRCA's page says the application form and participant guide are 'coming soon', so it is not yet taking applications.

TRCA Climate Ready Homes consultation

Free roughly 60-minute home consultation on energy and water use, climate resilience and available rebates, for owners of detached, semi-detached and townhomes; all Peel Region residents are eligible. Participants choose one free incentive (for example, a DIY air-sealing kit) while supplies last; consultations are limited per neighbourhood.

Rebates and financing for Mississauga 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 Federal CMHC Eco Improvement premium refund 25% back on your CMHC mortgage insurance premium after $20,000 of energy renovations Open

Cities near Mississauga

Brampton15 kmOakville18 kmMilton22 kmToronto23 kmVaughan26 kmBurlington31 km All 70 cities →

Sources

Checked September 28, 2026.

Planning upgrades in Mississauga?

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.

Email dave@clickshift.ca

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