How Vaughan is built
- Before 1961 2%
- 1961–1990 29%
- 1991–2000 23%
- 2001 or later 47%
When to book in Vaughan
Vaughan gets about 3,863 heating degree-days a year, a measure of how much heating its climate needs, and its winter design temperature, the cold day heating systems are sized for, is −19.8°C. Those figures come from the climate data for Toronto Buttonville in HOT2000, the home-energy software Natural Resources Canada (NRCan) gives energy advisors. That gives Vaughan a long window, roughly late fall to early spring, when the inside-outside difference comfortably exceeds the 10°C an infrared scan needs.
What the camera finds in Vaughan houses
Of Vaughan's 87,885 houses (single-detached, semi-detached, row houses and duplexes), 2% were built before 1961 and 30% before 1991, according to the 2021 Census. Older houses are where the camera earns its keep: empty or settled wall cavities, gaps at the top of walls, and cold corners where framing bridges the insulation. Run it with the blower door test depressurizing the house and every leak shows up as a cold streak.
What it costs
Most EnerGuide advisors include an infrared scan with the evaluation, but it isn't required, so confirm when you book. Typical Ontario prices are about $500–$700 for the initial EnerGuide evaluation and $200–$450 for the follow-up, plus HST where it applies. Windfall Ecology Centre charges $500 + HST for the initial evaluation and $250 + HST for the follow-up, Reep Green Solutions charges $540 and $406 with no HST, and City-backed programs in Ottawa and London quote $500–$700 as typical for the first visit. Only assessments from the seven HRSP-approved organizations qualify for the $600 Home Renovation Savings rebate, and none of the seven publishes a price.
Great Lakes–St. Lawrence Southern Ontario and southern Quebec
What this means in Vaughan’s climate
Cold winters and hot, humid summers: seal the attic, dry the basement, plan cooling.
Why it matters here: Shows missing insulation and air leaks as cold spots.
Best timing: December to February, early morning or on an overcast day, with at least 10°C between inside and outside.
What else homes in Vaughan need →
Sources for this climate guide · checked October 26, 2026
- National Building Code of Canada 2020, climate data (NRC)
- Canadian Climate Normals 1991–2020 (ECCC)
- Keeping the Heat In (NRCan)
- Air-Source Heat Pump Sizing and Selection Guide (NRCan)
- Heating and Cooling With a Heat Pump (NRCan)
- Heat pump basics (NRCan)
- Gas and heat pump hybrid systems (NRCan)
- Primary heating systems by household, Table 38-10-0286-01 (Statistics Canada)
- Electricity price comparison, April 2025 (Hydro-Québec)
- Canada's top weather stories of 2018 (ECCC)
- Canada's top weather stories of 2022 (ECCC)
- Canada's top weather stories of 2023 (ECCC)
- Canada's most impactful weather stories of 2024 (ECCC)
- Canada's top weather stories of 2025 (ECCC)
- 2024 Cross-Canada Survey of Radon Exposure
- Guide for Radon Measurements in Homes (Health Canada)
- Conditions for thermal scans, ASTM C1060 summary (Cx Associates)
Communities served
Vaughan's page covers the whole City of Vaughan, including Concord, Kleinburg, Maple and Woodbridge.
The organizations and professionals listed for Vaughan may or may not travel to every community, so ask when you call.
Area guides for the surrounding region, with every town and hamlet listed: York Region area guide (Newmarket, Aurora, Stouffville, Georgina and more); Caledon area guide (Bolton, Caledon East, Caledon Village, Palgrave and more).
NRCan-licensed service organizations serving Vaughan
A service organization is a company that Natural Resources Canada (NRCan) licenses to deliver EnerGuide evaluations; its registered energy advisors do the home visit. Most EnerGuide advisors bring an infrared camera, but it isn't a required part of the evaluation, so confirm when you book. The scan is most useful with the blower door running.
Only assessments from the seven HRSP-approved organizations qualify for the $600 Home Renovation Savings rebate and its assessment-path upgrade rebates; each listing below says whether it's one of them.
- Acacia Engineering HRSP-approved: No
- Air Barrier Canada HRSP-approved: No
- All Season Inspection HRSP-approved: No Profile
- AmeriSpec HRSP-approved: Yes Profile
- BEST Energy and Sustainability HRSP-approved: No
- Clean Energy Solutions HRSP-approved: No
- CoEfficient Building Science HRSP-approved: No
- ecoGEO Energy HRSP-approved: No
- Ecostep Energy Services HRSP-approved: No
- Energy Werx HRSP-approved: Yes Profile
- Enerhold Engineering Solutions HRSP-approved: No
- Enerhome Consulting HRSP-approved: No
- EnerQuality HRSP-approved: No
- EnerSolution HRSP-approved: No Profile
- Engreen Home HRSP-approved: No
- ER Energy Solutions HRSP-approved: No
- Green Canada Home Advisors HRSP-approved: No Profile
- Green Think HRSP-approved: No
- Greenbrain HRSP-approved: Yes Profile
- Sensible Home Inspections HRSP-approved: No
- The Energuy HRSP-approved: Yes Profile
- Verdatech Energy Management and Consulting HRSP-approved: No
- Windfall Ecology Centre HRSP-approved: No Non-profit network Profile
- GETS Energy HRSP-approved: No
- EcoLogic Energy Advisors HRSP-approved: No
Programs and local help in Vaughan
Thermal imaging inspection in Vaughan: common questions
When is the best time for a thermal imaging inspection in Vaughan?
Late fall through early spring, when it is at least 10°C colder outside than inside. Cold, overcast days with no direct sun on the walls give the clearest images.
Can a thermal camera see through walls?
No. It reads surface temperatures. Missing insulation or an air leak shows up because it changes the temperature of the wall or ceiling surface.
Who does thermal imaging in Vaughan?
Most of the 28 NRCan-licensed organizations serving Vaughan bring an infrared camera to an EnerGuide evaluation; confirm when you book.
Is thermal imaging the same as a thermographic inspection?
Yes. Thermography, thermal imaging and infrared scanning all mean reading surface temperatures with an infrared camera.