How much you get
Local financing note for Whitby
Whitby homes sit in Elexicon Energy territory, and Durham Greener Homes runs on top of the provincial program here — it isn't available everywhere in Ontario. Durham Greener Homes adds a Deep Retrofit Rebate of up to $10,000, loan financing through local credit unions, and an extra $5,000 incentive specific to Whitby residents, plus a free energy coach to help sequence the work. Check whether this upgrade counts toward the Deep Retrofit Rebate before assuming the provincial number is all you'll get.
Why this one needs an assessment
Windows and doors bundle into the assessment-required path alongside insulation, water heater, and air sealing. You need at least 2 of those upgrades — completing 3+ earns an extra $500 bonus.
How to claim it
- Book an initial home energy assessment with a registered energy advisor ($600, refunded later)
- Get your custom report
- Complete the window/door replacement plus at least one other qualifying upgrade
- Book a follow-up assessment
- Rebate arrives by mail within 60 days
Browse HVAC, solar, and electrical installers near Whitby →
Common questions
Are window and door rebates available in Whitby?
Yes, under Ontario's provincial program, and Whitby has a local reason to check further before assuming the provincial figure is the whole story: Durham Greener Homes' Deep Retrofit Rebate (up to $10,000) and its Whitby-specific $5,000 top-up can apply if the window and door work is bundled into a larger retrofit.
Do all new windows qualify for the rebate in Whitby?
No. They need to meet ENERGY STAR's rating for our climate zone, whether you're claiming the provincial rebate alone or stacking it with Durham Greener Homes.
Your utility: Elexicon Energy
Whitby's electricity is delivered by Elexicon Energy, formed in a 2019 merger of Veridian Connections, Whitby Hydro, Port Hope Power and Newmarket-Tay Power — a consolidation that covered several Durham Region and Lake Ontario-area towns at once. Neighbouring Oshawa opted out of that merger and still runs its own city utility, so the two towns are on different electric utilities despite sitting next to each other. None of that changes your windows and doors rebate, which the province pays out the same regardless of utility.
What Whitby's winters mean for this upgrade's payback
Whitby sits on Lake Ontario, which moderates its winters similarly to neighbouring Oshawa, with a 10-year average January daily low (2015-2024) of -7.6°C and a coldest recorded day of -28.3°C. Whitby's growth has been heavily suburban since the 1980s, so unlike some older Durham towns, the windows and doors rebate here is more often about mid-life vinyl window replacement than restoring a much older original frame.
Next steps
View all Whitby rebate programs → or check the official Home Renovation Savings Program site → for the current source of truth.