How Halton Hills is built
- Before 1961 19%
- 1961–1990 32%
- 1991–2000 19%
- 2001 or later 30%
This page covers the Town of Halton Hills: Georgetown, Acton, Glen Williams, Norval, Hornby and the rural area around them. Rural Milton, including Campbellville, is covered on the Milton pages.
What an evaluation finds in Halton Hills
Of the 19,380 houses in Halton Hills (single-detached, semi-detached, row houses, duplexes and mobile homes), 19% were built before 1961 and 52% before 1991, according to the 2021 Census. The typical house here dates from 1981–1990. An EnerGuide 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.
Environment and Climate Change Canada's 1981–2010 climate normal at Georgetown WWTP (1.0 km from the middle of the area) is 4,153 heating degree-days a year, with a January mean of −6.3°C. The more heating a climate needs, the more each fix is worth, which is why the ranked list in the report matters.
Province-wide, 58% of Ontario households heat mainly with natural gas, 18% with electricity, 4% with propane and 1% each with oil and wood (Statistics Canada, 2023); there's no published breakdown for this area alone. The heating system on the report shapes the recommendations: a furnace with ducts invites a ducted heat pump, electric baseboards a ductless one.
What it costs in Halton Hills
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.
All seven organizations approved for Home Renovation Savings assessments are among them, and only their assessments qualify for its $600 rebate. Check the HRSP-approved tag in the list below.
Most providers quote the initial (pre-upgrade) and follow-up (post-upgrade) visits separately, and organizations based in a city may add a travel fee for rural addresses. Rebate programs that pay on measured improvement need both visits, so ask for the combined price, travel included.
How a home energy assessment 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 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.
Read more: What a home energy audit involves.
Communities we cover in Halton Hills
Every town, village and hamlet below is part of this page, grouped by municipality (2021 Census population).
- Town of Halton Hills 62,951Acton, Georgetown, Glen Williams, Hornby, Norval
Covered on city pages: Milton (Campbellville).
NRCan-registered service organizations serving Halton Hills
NRCan's list of service organizations (checked October 8, 2026) shows 23 organizations registered for postal codes in Georgetown and Acton (L7G, L7J). Registration means an organization lists those postal areas, not that it has an advisor in town: confirm they travel to your community, and ask about wait times and travel fees.
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
- 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
- Green Canada Home Advisors HRSP-approved: No Profile
- 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
- Enerhold Engineering Solutions HRSP-approved: No
- GETS Energy HRSP-approved: No
Rebates an evaluation unlocks in Halton Hills
Home energy audits in Halton Hills: common questions
How much does a home energy audit cost in Halton Hills?
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. Ask whether a travel fee applies to your address.
Which companies do EnerGuide evaluations in Georgetown?
NRCan's list (checked October 8, 2026) shows 23 organizations registered for postal codes in Georgetown and Acton; 21 of them list all 2. Confirm they travel to your community before you book.
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.
Is a home energy audit worth it for an older house in Halton Hills?
52% of local houses were built before 1991 (2021 Census), and the area averages about 4,153 heating degree-days a year. Older houses in a cold climate are where a ranked upgrade list pays off most, and most rebates need the evaluation first.
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.