Quick answer: Ontario homeowners can get up to $1,250 back for upgrading attic insulation through the standalone attic path of the Home Renovation Savings Program, run by Enbridge Gas and Save on Energy. No energy assessment is needed. The rebate is 50% of the after-tax cost, up to a limit based on your current insulation level, and the work must be done by a participating contractor. The program is currently scheduled to run until March 31, 2027.
Updated November 2026
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7 things to know about the attic rebate
- No energy audit. Unlike older programs, this path skips the before-and-after assessments.
- Your current R-value sets your rebate. The less insulation you have now, the bigger the rebate.
- You must reach R-50. Standard attics must be upgraded to at least R-50. Cathedral ceilings and flat roofs have lower targets.
- It pays half, up to a cap. You get 50% of the after-tax cost, up to the tier maximum.
- Any insulation type works. Cellulose, fiberglass or spray foam all qualify if you hit the target R-value.
- One attic rebate per home. If your home already got an attic rebate from Enbridge, Save on Energy or Home Renovation Savings, you may not qualify again.
- It is first-come, first-served. Rebate amounts have changed twice since launch and the program can end early.
2026 rebate tiers
Amounts were raised by $250 on January 5, 2026.
| Your attic today | Upgrade to at least | Maximum rebate |
|---|---|---|
| R-12 or less | R-50 | $1,250 |
| Above R-12 to R-25 | R-50 | $1,000 |
| Above R-25 to R-35 | R-50 | $800 |
| Cathedral or flat roof, R-25 or less | R-28 | $750 |
| Cathedral or flat roof, R-12 or less | R-20 | $650 |
Source: Home Renovation Savings Program (homerenovationsavings.ca). Amounts can change.
How to estimate your tier from the hatch
- Open the attic hatch and shine a flashlight across the insulation. Stay on the ladder.
- Measure the depth near the hatch with a ruler.
- Multiply: about 3 × inches for blown fiberglass, about 3.5 × inches for cellulose, about 3.2 × inches for fiberglass batts.
- Match your number to the table above.
| Depth you measure | Fiberglass (about) | Cellulose (about) | Likely tier |
|---|---|---|---|
| 3–4 inches | R-9 to R-12 | R-10 to R-14 | $1,250 or $1,000 |
| 6 inches | R-18 | R-21 | $1,000 |
| 8 inches | R-24 | R-28 | $1,000 or $800 |
| 10 inches | R-30 | R-35 | $800 |
| 12+ inches | R-36+ | R-42+ | Likely not eligible |
If you see loose, pebbly, grey-brown or gold insulation, do not touch it. It may be vermiculite. Our R-value guide has more detail.
Key numbers
- 50% of after-tax cost, capped by tier (Home Renovation Savings Program)
- Rebate maximums rose $250 across all tiers on January 5, 2026 (Home Renovation Savings Program)
- Air leakage accounts for about 20–30% of heat lost from an older home (Natural Resources Canada)
- R-12 to R-50 cuts heat flow through the insulation layer by about 76% (simplified physics)
Attic path vs bundle path
| Standalone attic path | Bundle path | |
|---|---|---|
| Max attic rebate | $1,250 | $1,500 |
| Energy assessment | Not needed | Needed before and after |
| Other upgrades required | No | Yes, 2 or more in total |
| Best for | Attic-only jobs, quick timelines | Whole-home projects |
If you are only doing the attic, the attic path is almost always the better choice. Planning more? See the bundle path.
How to claim, step by step
- Book an assessment. We measure your attic and confirm your tier and eligibility.
- Get a written quote with the target R-value, after-tax price and estimated rebate.
- Sign the program form we provide.
- We do the work — air sealing, baffles, and insulation to at least R-50.
- We submit the application with photos, depth readings and your invoice.
- Receive your cheque, typically within a few months of approval.
The detailed version is in our step-by-step claim guide.
Eligibility checklist
- You own the home
- Home is heated by Enbridge gas, or electricity, oil, propane or wood on the provincial grid
- Detached, semi-detached, townhouse or another eligible home type
- Current attic insulation is R-35 or less (R-25 or less for cathedral/flat roofs)
- No previous attic rebate from Enbridge, Save on Energy or Home Renovation Savings
- You are not already enrolled in the bundle path for an attic rebate
- The work will be done by a participating contractor
example
example — not a specific customer.
A two-storey 1990s home in Markham has about 8 inches of blown fiberglass, around R-24. The homeowner upgrades to R-60.
- Tier: above R-12 to R-25 → maximum $1,000
- After-tax price: $2,400
- 50% of $2,400 = $1,200, above the cap → rebate is $1,000
- Net cost: $1,400
If the same job came to $1,800 after tax, the rebate would be $900 (half the cost), because half is below the cap.
Framework: should you do it now or wait?
- Do it now if: your attic is under R-25, upstairs rooms are uncomfortable, or you have ice dams. The rebate is at its highest level so far and the program is first-come, first-served.
- Bundle it if: you are also planning wall, basement or heat pump work within a year. The bundle path may pay more in total.
- Fix first if: you have animals, mould or vermiculite. Those need removal before new insulation.
Frequently asked questions
Do I need an energy audit for the Ontario attic rebate?
No. The standalone attic path does not require an energy assessment. You just need a participating contractor to do the work and submit the paperwork.
How much attic insulation rebate can I get?
Up to $1,250 if your attic is R-12 or less, $1,000 for R-12 to R-25, $800 for R-25 to R-35, and $750 or $650 for cathedral ceilings and flat roofs. The rebate is 50% of the after-tax cost, up to those limits.
Can renters apply?
No. You must own the home to qualify for the Home Renovation Savings Program.
Does spray foam qualify for the attic rebate?
Yes. Any insulation type qualifies as long as the attic reaches the target R-value. For most open attics, blown-in insulation is the better value.
What if my attic is already above R-35?
A standard attic above R-35 is above the program threshold, so it does not qualify for the attic path. You may still benefit from air sealing or other upgrades through the bundle path.
When does the attic rebate end?
The program is currently scheduled to run until March 31, 2027. It was extended in October 2026 and can still change or end early.
Get a free attic assessment
We measure your attic, confirm your tier and show the rebate in your quote before you commit. Call (647) 250-0606 or book online.