What Home Renovation Savings pays for insulation in Peterborough
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.
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.
An older city
The 2021 Census counts 57% of Peterborough households in detached houses, 68% in an eligible type and 59% owning. 6.1% report needing major repairs. 18% live in low-rise apartment buildings and 2,570 in duplexes, which are excluded.
Colder than the GTA
The 2015 to 2024 record low was -31.2°C, colder than Toronto or Hamilton. Heat loss through an under-insulated attic costs more here. The audit report will show the size of the problem.
Walls shared with a neighbour
Peterborough has 750 semi-detached and 3,065 row households. Walls between units earn no rebate, and semis and end rows are paid at 75% of the wall and basement maximums, with middle rows at 50%.
Exposed floors and crawl spaces
An exposed floor over an unheated garage earns $300 at R-20 or more over at least 11 square metres. Crawl space walls earn $600 or $1,200 and the ceiling $1,200, up to $2,700 combined. These are smaller jobs that can complete a bundle.
How to claim in Peterborough
- Check your house type and heating fuel.
- 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
Is Peterborough colder than Toronto?
Yes. The January average low is -11.4 degrees Celsius against -7.1.
Do duplexes qualify?
No.
What do exposed floors pay?
$300.
Are walls between units paid?
No.
What to do next
See Peterborough 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 Peterborough rebates → Every Home Renovation Savings rebate →
