What Home Renovation Savings pays for insulation in Greater Sudbury
We re-read the program's pages and both eligibility documents on October 3, 2026. There are two ways in: an attic-only stream with no assessment, and the assessment stream, where insulation, windows, air sealing and a heat pump water heater are bundled.
Attic, no assessment
The attic stream pays half of the after-tax cost, up to $1,250 for an attic from R-12 or less to R-50, $1,000 from R-25 or less and $800 from R-35 or less. A participating insulation contractor must do the work.
Attic, with assessment
In the assessment stream an attic brought to at least R-50 pays $1,500, $1,200 or $900 by starting R-value, pro-rated by the share of the roof you insulate (minimum 50%).
Cathedral ceiling or flat roof
$750 in the attic stream and $780 in the assessment stream. Any combination of attic, cathedral and flat roof counts as one measure, capped at $1,500 in the assessment stream.
Exterior walls
$1,200 for R-7.5 to R-12 added, $2,100 for more than R-12 to R-20 and $3,600 for more than R-20. Minimum 20% of wall area, pro-rated.
Basement walls, slab and headers
Walls up to $1,500, a slab $500 and a header $300. Wall plus slab is capped at $2,000, and all three at $2,300.
Crawl space and exposed floors
Crawl space walls $600 or $1,200, ceiling $1,200, header $300, combined up to $2,700. An exposed floor over a garage earns $300 at R-20 or more.
Semis and row homes
Semi-detached and end-unit row homes get 75% of the walls and basement maximums. Middle-unit rows get 50%.
Audit rebate and cap
The assessment stream returns $600 for the audits and caps insulation rebates at $7,700, inside an overall $10,000 limit, or $5,000 for Enbridge gas homes.
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Planning a heat pump too? This one is on top of the rebates above, and we’ll email you the day it opens.
- Up to $10,000
- if your household earns below the median income
- $2,000
- for other homeowners who qualify
Stack it with the Ontario rebate open today
Ottawa says you can combine them. Each program has its own rules. Amounts are the most you can get.
Applications open early 2027
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- Launch-day email, with what to do first
- Who qualifies for the $10,000, once Ottawa says
- A short hello now, so you know it worked
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Read everything we know so far Official page: canada.ca
Attic stream work must be finished by November 30, 2026 and entered in the system by December 31. In the assessment stream, the post-audit must be scheduled by November 30 and completed by December 31, 2026, or within 180 days of your first assessment.
Cold and old
The January average low is -15.2°C and the 2015 to 2024 record was -35.9°C. 67% of the 71,475 households live in homes built before 1981. 61% live in detached houses, 71% in an eligible type and 64% own. 6.9% report needing major repairs, which is high.
Heating fuels and caps
Homes heated mainly with electricity, oil, propane or wood have an overall cap of $10,000, and Enbridge gas homes $5,000. In a cold climate, a house that can claim the full $7,700 for insulation and then adds a heat pump or other measure may approach the higher cap, so plan the order of measures.
Roof assemblies
Where a house has a cathedral ceiling or flat roof, the rebate is $750 in the attic stream and $780 in the assessment stream, and any combination of roof types counts as one measure. The attic stream needs 100% of the roof assembly, so ask the contractor to confirm every section.
Basement and crawl space
Basement walls pay $900 or $1,500 with at least 20% of the wall area covered. Crawl space walls pay $600 or $1,200 and a crawl space ceiling $1,200, up to a combined $2,700. When both a basement and a crawl space exist, the wall rebates share a $1,500 ceiling.
Free help for lower incomes
The Energy Affordability Program from Save on Energy offers free upgrades to income-qualified households. Check it before paying for an assessment.
How to claim in Greater Sudbury
- Check your heating fuel and house type.
- Choose a stream: pre-register for the attic stream, or book a home energy assessment for the full bundle.
- Get quotes that state the R-value you start with, the R-value you reach and the share of each surface you will insulate.
- Do not start any work until the in-home visit or first assessment has happened.
- Keep invoices and your property tax bill for the paperwork, and finish before the November 30 and December 31, 2026 dates.
Common questions
How cold is Greater Sudbury?
The January average low is -15.2 degrees Celsius.
What does a flat roof pay?
$750 or $780 depending on the stream.
Do basement and crawl space rebates stack?
Their wall rebates share a $1,500 ceiling.
Is there free help?
Yes, for income-qualified households.
What to do next
See Greater Sudbury window and door rebates and the Ontario rebate calculator.
By Sam Menard. Sources, last read October 3, 2026: Home Renovation Savings: assessment upgrades, Home Renovation Savings: attic insulation, Home Renovation Savings eligibility requirements (PDF), Attic stream requirements (PDF), Statistics Canada 2021 Census, table 98-10-0233-01. All Greater Sudbury rebates → Every Home Renovation Savings rebate →
