Which tests does my home need?
Era, heating, water, symptoms in — your flagged tests out, in 30 seconds.
Run the screener →
Heat & energy
Air
Water & moisture
Your city, read like an auditor
70 Canadian cities, each with its climate, housing age and 16 local audit and testing services.
All 70 cities →
Across Canada
Big cities
Ontario region guides
Provincial guide · program status verified per item
Ontario is our home turf and the deepest part of this site: the Home Renovation Savings Program's audit-linked rebates, Toronto's HELP loans, CMHC's premium refunds — plus city-by-city guides for twelve markets and a provider directory with verified credentials.
From pre-Confederation stone to last year's tract builds, Ontario has every housing era in volume. The pattern that matters: pre-1980 stock dominates the resale market, and it's exactly the stock where audits find five-figure savings opportunities.
$600 assessment rebate · insulation to $7,700 · heat pumps to $7,500 ($12,000 ground-source)
The audit-linked path: pre- and post-retrofit EnerGuide assessments through one of seven approved service organizations unlock the stack, and the follow-up must be done by December 31, 2026. If your gas comes from Kitchener Utilities or Utilities Kingston rather than Enbridge, check eligibility first. Full details in our program tracker.
Low-interest City loans · 25% premium refund
Toronto's Home Energy Loan Program funds projects at posted rates (assessment required for most), and CMHC-insured buyers can claim Eco premium refunds. Both verified in the tracker.
announced National Heat Pump Rebate (new): Announced October 8, 2026 and expected to open early 2027: $2,000 toward an eligible cold-climate air-source heat pump, or up to $10,000 for households below the median income. Apply online, approval within 24 hours, no EnerGuide evaluation, and it can be combined with provincial rebates. Not open yet. What we know → ↗
closed Canada Greener Homes Grant & Loan: The grant closed to new applicants in February 2024; the interest-free loan (up to $40,000) stopped taking applications October 1, 2025 and its funding is fully committed. Approved applicants keep their funding — new ones can't join. ↗
live Greener Homes Affordability Program: Free direct-install retrofits (insulation, heat pumps) for low-to-median-income owners and tenants, expanded June 29, 2026 with over $500 million, delivered through provincial partners in BC, Manitoba, Newfoundland and Labrador, Nova Scotia, PEI and Quebec (Quebec's 2026–27 registration has ended), with more to be listed. You apply through your province's program, never through cold-callers. ↗
closed Oil to Heat Pump Affordability (OHPA): Closed to new applications July 31, 2026 (approved participants have until January 31, 2027 to submit receipts). It paid up to $15,000 (plus a one-time $250 payment) toward oil-to-heat-pump conversions for income-qualified households. In Ontario it was delivered with Save on Energy as a free heat pump installation worth up to $25,000. ↗
Each city page covers 16 audit and testing services with that city's own climate, housing age and service organizations. The bar shows its houses by construction era, oldest first.
Local geology, water sources, and climate set the home-health checklist. Each item links to its full guide; the 30-second screener personalizes it to your exact house.
Ontario gets the full treatment: twelve city guides with local housing eras, program angles, and monitor-and-test sections from Ottawa's radon belt to London's humidity.
Varies house to house across every Ontario geology — the winter kit is the answer everywhere, and Ottawa-area homes especially shouldn't skip it.
Ontario's standout: Public Health Ontario tests private well samples for bacteria free of charge. Rural homeowners — use it seasonally.
The Hawkins-Gignac Act requires alarms near sleeping areas in homes with fuel appliances, fireplaces, or attached garages — Ontario is the province where this is settled law, not just best practice.
Other provinces: British Columbia · Alberta · Saskatchewan · Manitoba · Quebec · New Brunswick · Nova Scotia · Prince Edward Island · Newfoundland & Labrador · The North (YT · NT · NU)
NRCan-registered service organizations work in every province. Tell us where you are and what you're planning — we'll point you at the right door, with your province's programs flagged.