How Whitby is built
- Before 1961 8%
- 1961–1990 32%
- 1991–2000 20%
- 2001 or later 41%
What an evaluation finds in Whitby homes
Of Whitby's 40,670 houses (single-detached, semi-detached, row houses and duplexes), 8% were built before 1961 and 39% before 1991, according to the 2021 Census. The typical Whitby house dates from 1996–2000, and an evaluation is how you find out what that means for yours: the blower door measures air leakage, the advisor inspects the attic, walls, basement, windows and heating system, and the report ranks upgrades by what they'd save.
Whitby gets about 3,863 heating degree-days a year and has a winter design temperature of −19.8°C, according to NRCan's HOT2000 climate data for Toronto Buttonville, the closest comparable location in that data set (34 km away). That's right around the middle of the 70 cities we cover. The more heating a climate needs, the more each fix is worth, which is why the evaluation's ranked list matters more in some cities than others.
In the Oshawa area, 82% of households heat mainly with a forced-air furnace; natural gas is the main heating energy for 72% of households and electricity for about 17% (Statistics Canada, 2023). The heating system on the report shapes the recommendations: a forced-air furnace invites a ducted heat pump, electric baseboards a ductless one.
What it costs in Whitby
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.
Most providers quote the initial (pre-upgrade) and follow-up (post-upgrade) visits separately. Rebate programs that pay on measured improvement need both, so ask for the combined price.
How a home energy assessment (EnerGuide evaluation) works
- Initial evaluation, about 2–3 hours. The advisor measures and inspects the house and runs the blower door test.
- Report and EnerGuide rating. You get the home's energy rating in gigajoules per year and a list of recommended upgrades with estimated savings.
- Do the work. Most rebate programs only count upgrades done after the initial evaluation.
- Follow-up evaluation. A second visit measures the improvement, which is what most rebates pay on.
Communities served
Whitby's page covers the whole Town of Whitby, including Ashburn.
The organizations and professionals listed for Whitby may or may not travel to every community, so ask when you call.
Area guide for the surrounding region, with every town and hamlet listed: Home energy audit in Durham Region (Port Perry, Uxbridge, Brock and more).
NRCan-licensed service organizations serving Whitby
Every organization below is licensed by NRCan to deliver EnerGuide evaluations and lists Whitby postal codes. Coverage is the share of Whitby's urban postal areas each one lists.
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
- 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
- EnerQuality HRSP-approved: No
- EnerSolution HRSP-approved: No Profile
- Engreen Home HRSP-approved: No
- ER Energy Solutions HRSP-approved: No
- GETS Energy 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
- Enerhome Consulting HRSP-approved: No
Rebates and financing an evaluation unlocks in Whitby
Home energy audit in Whitby: common questions
How much does a home energy audit cost in Whitby?
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.
How many companies do EnerGuide evaluations in Whitby?
NRCan's list of service organizations shows 25 licensed organizations with Whitby postal codes (checked September 25, 2026). All seven organizations approved for Home Renovation Savings assessments are among them, and only their assessments qualify for its $600 rebate.
How long does an EnerGuide evaluation take?
The initial visit usually takes two to three hours, including the blower door test. The follow-up visit after upgrades is shorter.
Which rebates need an EnerGuide evaluation in Ontario?
Currently: Home Renovation Savings — Home Energy Assessment path (Up to $10,000 per home ($5,000 if heated with Enbridge gas), including $600 back on your two assessments, for insulation, windows, air sealing and more — if the follow-up assessment is done by December 31, 2026). Check the program page for current terms before you book.