Attic Insulation Rebate Ontario 2026 — Up to $1,250
Last reviewed: April 17, 2026 · Rates verified against homerenovationsavings.ca
Quick answer
Up to $1,250 for attic insulation, up to $750 for cathedral ceiling or flat roof. No energy assessment required. Work must be done by a participating contractor — no DIY.
Why attic is the easy win
Standalone attic insulation was introduced as part of HRS in August 2025 and has become one of the program's most popular offerings. Reasons:
- • No home energy assessment required
- • Simple process — one contractor handles everything
- • Typical project cost $2,000-$3,000, rebate covers ~50%
- • Real energy savings on heating and cooling
Exact rebate amounts
Rebate is calculated at 50% of the total attic insulation cost (after tax), up to the maximums below. Your starting insulation level determines the max.
Attic
| Current insulation | Target | Max rebate |
|---|---|---|
| Less than or equal to R-12 | R-50 | $1,250 |
| Greater than R-12 to R-25 | R-50 | $1,000 |
| Greater than R-25 to R-35 | R-50 | $800 |
Cathedral ceiling / flat roof
| Current insulation | Target | Max rebate |
|---|---|---|
| Less than or equal to R-12 | R-20 | $650 |
| Less than or equal to R-25 | R-28 | $750 |
Eligibility — who qualifies
- ✓ You own the home where the insulation is installed
- ✓ You live in an eligible property type (detached, semi, row, townhome, mobile home on permanent foundation)
- ✓ Installation is done by a participating attic insulation contractor
- ✓ Upgrade brings insulation to at least the minimum R-value shown above
Who's doing this work
Note: new contractor registration for the attic insulation stream is currently closed — only contractors on the pre-approved list can deliver this rebate. The pre-approved contractors include:
Verify the current list and contact information at homerenovationsavings.ca/help-and-support.
Can I stack with other programs?
Limited stacking is allowed:
- ✓ You can stack with rebates from other organizations (utilities, municipalities)
- ✗ You cannot stack with other Enbridge Gas, IESO Save on Energy, or Government of Ontario programs
- • Combined total cannot exceed 50% of the measure cost (after tax)
Calculate your attic rebate
Answer a few quick questions to see exactly what your attic insulation upgrade qualifies for.
Calculate my rebate →Frequently asked questions
How much is the Ontario attic insulation rebate?
Up to $1,250 for attic insulation, up to $750 for cathedral ceiling or flat roof. The exact amount depends on your current insulation level — lower existing R-value = higher rebate.
Do I need an energy assessment for attic insulation?
No. Standalone attic insulation is one of the few HRS upgrades that doesn't require an energy assessment. Your participating contractor handles everything.
Can I do attic insulation myself and still get the rebate?
No. Only upgrades installed by a participating contractor qualify. DIY attic insulation is not eligible for the rebate.