Heritage & Modern Renovations
Energy retrofits and heritage renovations across the London region, tested before and after, so you can see exactly what the work changed.
Old bones. New performance.
Starlit Homes renovates and retrofits existing homes across London, Ontario and the surrounding towns — from heritage properties in Old North to farmhouses near St. Marys. We measure before and after: every retrofit starts with a blower door test and thermal imaging, and ends with verified numbers that prove the improvement. The result is a home that keeps its stories and sheds its drafts.
Heritage Kept
Original trim, masonry, and proportions stay. The performance work (air barriers, insulation, mechanicals) happens inside the walls, under the roof, and below the floor.
Performance Upgrades
Continuous insulation retrofits, triple-glazed window replacements, hybrid heat pump installations, and full air-sealing.
Structural Work
Foundation underpinning and load-bearing modifications, engineered and permitted to current structural code.
A typical deep-energy retrofit profile
An illustrative before-and-after for an older Ontario home — not a specific project. Your real starting numbers come from the blower door test and thermal imaging in step one.
Home energy retrofit incentives in Ontario
A home energy retrofit in Ontario rarely has to be paid for entirely out of pocket. Federal, provincial, and utility-run programs regularly offer rebates and low-interest financing for the exact work a deep-energy retrofit involves: insulation, air-sealing, window replacement, and heat pump installation.
Most programs share a common structure — an EnerGuide home evaluation before the work, the upgrades themselves, then a follow-up evaluation that documents the improvement and unlocks the rebate. That before-and-after testing is something we do on every project anyway, so qualifying rarely adds steps for our clients.
The honest caveat: programs change. Eligibility rules, funding windows, and rebate amounts shift year to year, and a figure quoted online today can be stale by the time your project starts. We track what's currently open and walk you through the rebates that apply to your home as part of the assessment phase — before you commit to a scope.
Our renovation process
Assessment & Diagnostics
Comprehensive blower door testing, thermal imaging, and structural analysis of your existing home.
Performance Design
We develop a renovation plan that targets specific performance metrics — ACH, insulation values, and indoor air quality.
The Work
Crews sequenced to keep you in the house where possible, with inspection hold-points at each stage.
Verification & Handover
A second blower-door test after the work. The before-and-after pair is your proof of the improvement.
Renovation questions, answered
How much does a deep-energy retrofit cost in Ontario?
Are there rebates for home energy retrofits in Ontario?
Will an energy retrofit change my home's character?
Building science resources
Continuous insulation: why R-value alone isn't enough
Climate SystemsHybrid heat pump systems: the future of home climate
AirtightnessThe 1.5 ACH standard: what it means for your family
Starting Fresh?Custom home builds in London, Ontario
Explore energy efficiency retrofit programs from Natural Resources Canada and the Canadian Home Builders' Association.
Start with the test
Every retrofit starts by measuring the house you have: an air-leak test, plus thermal imaging that shows exactly where your heat is escaping. You'll know your starting point before you decide how deep to go.
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