London's century homes and post-war neighbourhoods respond strongly to envelope work — insulation and air sealing rebates under Home Renovation Savings run up to $7,700 on the assessment path.
2 registered service organizations · compiled from public sources, checked August 23, 2026 · read the full London guide · or start with the planner
NRCan-registered service organization
Province-wide Ontario coverage; also active in BC, AB, SK, MB and several US states
Prices not published — ask when you contact them
Reports 400,000+ home energy assessments since 2003 (company claim)
NRCan-licensed for EnerGuide since 2001
National home-inspection franchise; EnerGuide services vary by local franchise
Prices not published — ask when you contact them
Typical Ontario pricing is $400–$700 for the initial EnerGuide assessment and $200–$400 for the follow-up. The Home Renovation Savings Program rebates $600 of that on the assessment path. Few providers publish prices — the ones here that do are marked.
Home Renovation Savings (province-wide): $600 for assessments, up to $7,700 insulation, up to $12,000 heat pumps, up to $10,000 solar + battery. CMHC-insured recent buyers can add the 25% Eco Improvement premium refund.
Every listing is an NRCan-licensed service organization — the registration source is linked on each profile, compiled from public registries and provider websites and checked August 23, 2026. We list no solar or HVAC sales reps as auditors.
Tell us what you're planning and we'll connect you with one registered service organization serving your area — not a shared lead list.
Email us what you’re planning and your postal code — we’ll reply with registered service organizations for your area and which rebates apply.
Email hello@audityourhome.com