Ontario’s attic insulation rebate is real money — up to $1,250 on the standalone path, up to $1,500 through the bundled path.
The part nobody explains: a large share of Toronto housing doesn’t qualify, and the reasons are structural rather than anything you did wrong. Stacked townhouse, condo, rental property, previously claimed, too much insulation already, new build — all of these are hard stops, and homeowners routinely find out after they’ve booked the work.
This is the eligibility check first, the money second. Verified against the official program as of July 2026.
Start here: the disqualifiers
Work through these before anything else.
| Condition | Status |
|---|---|
| Stacked townhouse | ❌ Explicitly excluded |
| Condominium unit | ❌ Not an eligible housing type under these residential streams |
| You don’t own the home | ❌ Ownership is required |
| Investor-owned rental you don’t live in | ❌ The program is directed at homeowners — confirm your situation directly |
| New build occupied 6 months or less | ❌ Excluded |
| Already claimed an attic rebate from Enbridge Gas, Save on Energy, the Ontario government, or this program | ❌ One per residence |
| Existing attic insulation above R-35 | ❌ Outside the brackets |
| You’ve already started the attic work | ❌ Apply before work begins |
| Not an Enbridge Gas customer and not on Ontario’s electricity grid | ❌ Ineligible |
| Detached, semi-detached, standard row/townhouse, or mobile home on permanent foundation | ✅ Eligible housing types |
Two that catch Toronto homeowners specifically
Stacked townhouses. These are excluded by name. Standard row and townhouses are fine — the exclusion is specific to stacked configurations, where units sit above one another. If you’re not certain which you own, check your property assessment or your original purchase documents. It’s worth five minutes.
Multiplexes, duplexes and triplexes. The program’s eligible housing types are detached, semi-detached, row/townhouse, and mobile homes on a permanent foundation. Multi-unit dwellings aren’t on that list. Given how much of Toronto’s older housing has been converted into two- and three-unit properties, and how many more are being created under the city’s multiplex permissions, this affects a meaningful number of homes. This is a grey area and I’d advise confirming your specific property directly with the program administrator rather than assuming either way.
What the rebate actually pays
Two rules change the number from what the headlines suggest.
Rule 1: it’s 50% of your cost, not a flat cheque
The rebate is calculated at 50% of the total attic insulation cost after tax, up to the maximum for your bracket.
| Existing R-value | Project cost incl. HST | 50% of cost | Bracket cap | You receive |
|---|---|---|---|---|
| R-10 | $1,600 | $800 | $1,250 | $800 |
| R-10 | $3,000 | $1,500 | $1,250 | $1,250 |
| R-20 | $3,000 | $1,500 | $1,000 | $1,000 |
| R-30 | $2,000 | $1,000 | $800 | $800 |
Costs shown are illustrative examples, not quoted prices.
Rule 2: your bracket is set by what you already have
| Existing insulation | Must reach | Maximum (standalone path) |
|---|---|---|
| R-12 or less | R-50 | $1,250 |
| Over R-12, up to R-25 | R-50 | $1,000 |
| Over R-25, up to R-35 | R-50 | $800 |
| Over R-35 | — | Not eligible |
You also have to insulate 100% of the roof assembly area. Not the easy two-thirds.
If you have a flat roof or cathedral ceiling
Toronto has a lot of these — rear additions, rowhouses, third-floor conversions — and they sit in their own bracket with lower thresholds, because there’s physically less depth to work with.
| Existing insulation | Must reach | Maximum (standalone path) |
|---|---|---|
| R-25 or less | R-28 | $750 |
| R-12 or less | R-20 | $650 |
If your house is part standard attic and part flat roof, both areas need to be addressed to satisfy the 100%-of-assembly requirement. Worth raising at the assessment.
How flat roofs and cathedral ceilings get insulated →
The two paths, and which one Toronto homes should usually take
| Standalone attic | Bundled upgrades | |
|---|---|---|
| Energy assessment? | No | Yes — before and after |
| Upgrades required | Attic only | Two or more |
| Attic maximum | $1,250 | $1,500 |
| Total insulation maximum | $1,250 + $750 | $7,700 |
| Contractor | Closed pre-approved list only | Any qualified contractor |
You can’t use both for the same attic.
Why the bundled path often suits Toronto housing better: older Toronto homes rarely need only the attic. Uninsulated walls, an unsealed rim joist, an underpinned or unfinished basement, a crawlspace under a rear addition — these are common, and each is a qualifying upgrade in its own right. Reaching the two-upgrade minimum is usually easy, and the ceiling is six times higher.
The bundled path also isn’t restricted to the closed contractor list, which matters — see below.
Bundled path amounts worth knowing
| Upgrade | Requirement | Rebate |
|---|---|---|
| Attic | To R-50 from R-12 or less | $1,500 |
| To R-50 from over R-12 up to R-25 | $1,200 | |
| To R-50 from over R-25 up to R-35 | $900 | |
| Cathedral / flat roof | To R-28 from ≤R-25, or R-20 from ≤R-12 | $780 |
| Exterior walls | Add over R-20 to 100% of wall area | $3,600 |
| Add over R-12 up to R-20 to 100% | $2,100 | |
| Add R-7.5 up to R-12 to 100% | $1,200 | |
| Basement walls | Add over R-22 to 100% | $1,500 |
| Add R-10 to R-22 to 100% | $900 | |
| Basement slab | 50%+ of slab, min R-3.5 | $500 |
| Foundation header (rim joist) | 80%+ of area, min R-20 | $300 |
| Crawlspace walls | Add over R-22 to 100% | $1,200 |
| Crawlspace ceiling | Add over R-24 to 100% | $1,200 |
| Exposed floor | Add R-20+ to entire area, min 120 sq ft | $300 |
| Air sealing | Beat report target by 10%+ / meet target | $250 / $200 |
| Windows & doors | Min 3 window openings or 1 door/skylight/slider, ENERGY STAR | $100 per rough opening |
| Heat pump water heater | ENERGY STAR replacement | $500 |
Exterior wall insulation at up to $3,600 is the largest single line item and is directly relevant to Toronto’s pre-war stock, most of which has little or no wall insulation.
The contractor rule most homeowners don’t know about
The standalone attic path is delivered only by contractors on a closed, pre-approved program list. Registration for that stream is currently closed — no new contractors are being added.
Practically, this means:
- Confirm eligibility on the official program site first, and it will return the list of participating contractors for your area
- If a contractor tells you they’ll get you the standalone $1,250, verify they’re on that list before signing
- The bundled path has no such restriction — any qualified contractor can do the work once your energy advisor has completed the pre-retrofit assessment
The program administrator has published a public warning about people impersonating approved contractors. Verify through the official site, not through the contractor: homerenovationsavings.ca/scams
Do it in this order or you lose the rebate
Standalone path:
- Complete the eligibility form at homerenovationsavings.ca/without-assessment/attic
- Choose a contractor from the participating list they return
- Work completed
- Contractor submits documentation
- Rebate issued — Enbridge customers as a bill credit, electrically heated homes by cheque
Bundled path:
- Book the pre-retrofit energy assessment with a registered energy advisor — before any work
- Receive your Renovation Upgrade Report
- Complete at least two recommended upgrades
- Book the follow-up assessment with the same advisor
- Rebates issued after the advisor submits
Two mistakes are unrecoverable: starting work before the first assessment, and completing only one upgrade on the bundled path. Neither can be fixed retroactively.
What about the federal money?
Mostly gone.
- Canada Greener Homes Grant — closed to new applicants
- Canada Greener Homes Loan — closed to new applications as of October 1, 2025, per Natural Resources Canada. Already-approved homeowners continue through the existing process.
If a contractor website still advertises “up to $10,000 from the Canada Greener Homes Loan,” that page is out of date.
NRCan has since launched the Canada Greener Homes Affordability Program, delivered through provincial partners and aimed at lower- and median-income households. Ontario availability and rules should be confirmed at natural-resources.canada.ca before counting on it.
Stacking rules
- ❌ Can’t combine with other Enbridge Gas, Save on Energy (IESO), or Government of Ontario incentives for the same measure
- ⚠️ Must disclose any other utility, municipal or government rebate for the same attic work during the application
- 🔒 Combined rebates from all sources cannot exceed 50% of the total after-tax cost of the measure
Frequently asked questions
How much is the attic insulation rebate in Toronto? Up to $1,250 standalone or $1,500 bundled — calculated at 50% of your after-tax project cost, within the bracket set by your existing insulation level.
I live in a stacked townhouse. Can I get it? No. Stacked townhouses are explicitly excluded. Standard row and townhouses are eligible.
I own a condo. Can I get it? Condominium units aren’t an eligible housing type under these residential streams. Attic and roof assemblies in a condo are typically common elements managed by the corporation in any case.
I own a duplex / triplex / multiplex. Not listed among the eligible housing types. Confirm your specific property with the program administrator rather than assuming.
I rent out the property. Ownership is required and the program is directed at homeowners. Confirm your situation directly.
My attic already has R-40. Do I qualify? No — the brackets stop at R-35 existing. Topping up may still be worthwhile on comfort and energy grounds, just without a rebate.
Do I need an energy audit? Not on the standalone attic path. Yes on the bundled path, before and after.
I have a flat roof. Is that covered? Yes, under a separate bracket — $750 or $650 depending on your starting point, with thresholds of R-28 or R-20.
How long until the rebate arrives? Issued after your contractor or energy advisor submits the closeout documentation. Processing times vary with volume — ask your contractor about their current experience rather than relying on a published estimate.
Can I do the work myself? No. The work must be completed by a program-participating contractor.
Three things to do before you book anything
- Check the disqualifier list at the top of this page. It costs nothing and it’s the most common reason a rebate falls through.
- Measure your existing attic depth — it sets your bracket before anyone quotes you. How to check it yourself →
- Ask for a quote that shows the rebate math — your bracket, project cost, 50% of cost, and net position. If a contractor won’t put that in writing, that tells you something.
Talk to us about your Toronto home
Pro Insulation Contracting has been insulating Ontario homes for over 10 years. We assess Toronto attics, flat roofs and basements on site, and quote a fixed price with the rebate position explained clearly rather than implied.
📞 (416) 315-0471 · Book a free assessment →
