Articles · last verification pass October 2, 2026
Cited, current, local
Long-form answers with receipts: every program claim links to its official page and carries the date we checked it. Where a topic isn't inherently local, a region switcher makes it local — programs, requirements, and standards for where you actually live.
The foundation
What is a home energy audit?
The measured definition: what happens, what it establishes, what it isn't — with a switcher that localizes programs and requirements to your region.
Read →Ontario
Home energy audits in Ontario: the 2026 guide
The whole Ontario picture: what the EnerGuide assessment measures, what it costs, the $600 rebate and its 2026 deadline, who is approved to do it, and the free option.
Read →Cost
How much does a home energy audit cost?
Province by province: $500–$700 plus a follow-up in Ontario with $600 back through approved organizations, $150 + tax in Quebec, $99 + HST in NB and PEI, $400 back in Manitoba — and what drives the price.
Read →Choosing an auditor
Energy audit companies in Ontario: who's licensed, and how to choose
The full list: all 43 NRCan-licensed companies with Ontario listings, the seven approved for Home Renovation Savings, and five checks before you book.
Read →Rules & standards
When is an energy audit required in Ontario?
The honest split between mandatory and voluntary — the selling-your-home myth, EWRB for large buildings, and the standards stack from CGSB to SB-12 decoded.
Read →Toronto
Energy audit services in Toronto: homes, buildings, and who does what
EnerGuide for houses, ASHRAE Levels 1–3 for buildings, mandatory EWRB reporting at 50,000 sq ft — and which professional performs each.
Read →Buildings & industry
Commercial and industrial energy audits in Toronto and Ontario
ASHRAE Levels 1–3 explained, who performs them, Toronto's reporting rules, Enbridge's 50% audit incentive and Save on Energy's building programs.
Read →Multi-unit buildings
Energy audits for duplexes, triplexes and apartment buildings
EnerGuide for low-rise MURBs and the advisors qualified to rate them, engineering audits for larger buildings, and which programs cover multi-unit homes.
Read →Heat pumps
Heat pump rebates in Toronto and Ontario
No City rebate in 2026 — but up to $7,500 provincially ($2,000 if gas-heated), HELP financing, and free heat pumps for income-qualified homes.
Read →Financing
Home renovation loans in Toronto
HELP up to $125,000 at posted rates, the dead federal loan still haunting search results, the CMHC 25% refund, and the sequence that stacks them.
Read →Home health
Vermiculite insulation: when it was used, how to spot it, and what to do
Mined at Libby, Montana from the 1920s to 1990 and sold mostly as Zonolite: how to recognize it, how testing works, and what it means before any attic upgrade.
Read →Manitoba
Home energy assessments in Winnipeg
The $400 Efficiency Manitoba rebate, who qualifies, the licensed organizations covering Winnipeg, and what comes after the evaluation.
Read →British Columbia
Home energy testing in BC: your questions answered
EnerGuide evaluations, the F280 calculation BC heat pump rebates require, blower door numbers, radon, and the $750–$2,000 Improvement Bonus.
Read →Northern BC
Energy audits in Prince George, Dawson Creek & Northern BC
Why -30° winters sharpen the payback math, how BC's Improvement Bonus pays, and booking an evaluation up north.
Read →London, Ontario — neighbourhood by neighbourhood
London, Ontario
Home energy audits in Oakridge, London
1950s–1970s homes: what audits find in Oakridge, the tests to ask for, the rebates that fit, and who serves London.
Read →London, Ontario
Home energy audits in Masonville, London
1970s–1990s homes: what audits find in Masonville, the tests to ask for, the rebates that fit, and who serves London.
Read →London, Ontario
Home energy audits in Sunningdale, London
1990s–2010s homes: what audits find in Sunningdale, the tests to ask for, the rebates that fit, and who serves London.
Read →London, Ontario
Home energy audits in Westmount, London
1970s–1980s homes: what audits find in Westmount, the tests to ask for, the rebates that fit, and who serves London.
Read →Looking for your city?
The regional guides cover twelve Ontario areas neighbourhood-deep, and the testing guide walks every instrument from blower doors to radon kits.