If you’ve never dealt with a government rebate before, they can sound too good to be true or too complicated to bother with. Ontario’s insulation rebate is neither — but nobody explains it in plain language.
So here it is, no jargon, for an Ajax homeowner who just wants to know: is there money available, how much, and what do I have to do to get it? Verified as of July 2026.
The one-sentence version
The government will pay back half of what you spend on qualifying insulation — up to a limit that depends on your home.
That’s it. Everything below is just the details of “half,” “qualifying,” and “the limit.”
The most important thing to understand first
When you see “up to $1,250” or “up to $7,700” advertised, that is not a cheque you get for showing up.
The rebate is 50% of what you actually spend, up to a maximum. So:
- Spend $1,600 on your attic → you might get $800 back (half)
- The “$1,250” is just the ceiling — the most you could get, only if your project is big enough and your home qualifies for the top amount
Think of it like a “half off, up to $X” coupon. You still pay the other half. That’s not a knock on the rebate — half off a job you were going to do is genuinely good — it’s just important you go in with the right expectation.
The two ways to get it
There are two routes. You pick one. Here’s the simple version of each.
Route 1: Just the attic (the quick one)
- No home energy assessment needed — this is the fast route
- Covers your attic only
- Up to $1,250 back, depending on how little insulation you currently have
The less you have now, the more you can get:
| What’s in your attic now | Most you can get |
|---|---|
| Almost nothing (R-12 or less) | $1,250 |
| A bit (R-12 to R-25) | $1,000 |
| A fair amount (R-25 to R-35) | $800 |
| Already well-insulated (over R-35) | Nothing — you don’t need it |
You have to bring the attic up to a set level (called R-50) and do the whole attic, not just part.
One catch worth knowing: this quick route can only be done by contractors on an official approved list, and that list is currently closed to new companies. Before you hire anyone for this route, check the official program site to see who’s on it — and don’t just take a contractor’s word that they’re approved. (More honesty on this below.)
Route 2: Two or more upgrades (the bigger one)
- Needs a home energy assessment — an expert visits before and after (there’s a fee for this)
- You do at least two improvements (e.g. attic + basement, or attic + sealing air leaks)
- Up to $7,700 back across all your insulation
This route is more work but pays a lot more, and it’s open to any qualified contractor. It suits homes that need more than just the attic — which, for a lot of Ajax homes, is the case once you look.
| Improvement | Most you can get |
|---|---|
| Attic | $1,500 |
| Outside walls | $3,600 |
| Basement walls | $1,500 |
| Crawlspace | $1,200 |
| Rim joist (top of basement wall) | $300 |
| Sealing air leaks | $250 |
| Windows & doors | $100 each opening |
(All of these are still “half of what you spend, up to that amount.”)
Which route is right for you?
Simple way to decide:
- Only want the attic done, want it fast? → Route 1.
- Need the attic plus other stuff — basement, walls, drafts? → Route 2. It pays more and it’s worth the extra steps if you’ve got the work.
- Not sure what your home needs? → Get a free assessment first. It tells you what qualifies before you commit to anything.
The handful of things people mess up (don’t be one of them)
Most people who miss out on the rebate didn’t fail to qualify — they tripped on a step. Here are the ones to not get wrong:
1. Don’t start the work too early. On the quick route, check you’re eligible first. On the bigger route, the “before” assessment has to happen before you touch anything. Start early and you can lose the whole thing. When in doubt: paperwork first, work second.
2. On the bigger route, actually do two things. Do only one improvement and you get nothing — not even for the one you did. If money’s tight, pick a cheap second one (like air sealing) rather than dropping to one.
3. Do the whole area, not part of it. For the attic, walls, and basement, you have to insulate 100% of the space. Skipping the awkward bit can disqualify that whole part of the claim.
4. Keep your paperwork. Quotes, invoices, the assessment reports, before-and-after photos. One folder. You’ll need them.
5. Check your contractor can actually deliver the quick-route rebate. As mentioned — that route runs through a closed approved-contractor list. Verify on the official site, not just on the contractor’s say-so.
Who can get it (the basics)
You generally qualify if you own your home and it’s a house, semi, townhouse, or a mobile home on a permanent foundation. You heat with natural gas (Ajax is Enbridge Gas territory), or with electricity/oil/propane/wood on the Ontario grid.
You can’t get it if: you rent (the owner has to be the one), it’s a brand-new build you’ve lived in six months or less, it’s a stacked townhouse, or you’ve already claimed the attic rebate on this home before.
What about that “$10,000 federal loan” I’ve heard about?
You may have seen ads for the Canada Greener Homes Loan (up to $10,000, interest-free). Important update: it closed to new applications on October 1, 2025. If a website is still advertising it, that page is out of date. (If you were already approved before then, you continue as normal.)
There’s a newer federal program aimed at lower-income households, delivered through the provinces — check natural-resources.canada.ca if that might be you.
Heads up on scams: because these rebates are popular, there are fake websites and people pretending to be approved contractors. Only trust the official site, homerenovationsavings.ca, and never hand account details to someone who calls or knocks unprompted.
Frequently asked questions
Is the rebate real? Yes — it’s Ontario’s Home Renovation Savings program, run with Enbridge Gas and the province. Real money, just not a flat cheque.
How much will I actually get? Half of what you spend on qualifying insulation, up to a cap set by your home and the improvement. For a typical attic, often somewhere between $800 and $1,250.
Do I need the energy assessment? Only for the bigger (two-or-more-upgrades) route. The attic-only route skips it.
How do I find out what I qualify for? Measure your attic (a ruler and five minutes — here’s how), then get a free assessment. Between those you’ll know your route and rough amount.
Can I do the work myself and claim it? No — it has to be done by a qualified contractor.
Who gets the money? You do — as a credit on your Enbridge bill, or a cheque.
When should I do this? Ideally before winter, and ideally not in the fall rush when everyone books at once. Summer is the easy time to get it done.
Not sure where to start? That’s normal.
If this is your first time dealing with a home rebate, the easiest first step is a free assessment. We measure what you’ve got, tell you which route fits, and put the numbers in writing — your likely rebate, your cost, and what you’d actually pay after. No jargon, no pressure.
Pro Insulation Contracting has insulated Ontario homes for over 10 years and serves Ajax and Durham Region.
📞 (416) 315-0471 · Book a free assessment →
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Rebate details verified against homerenovationsavings.ca and natural-resources.canada.ca on July 27, 2026. Government programs change frequently and can be modified or ended without notice. Confirm current terms on the official program website before making a financial decision.
