Attic insulation now earns $1,250 back (up from $1,000), air sealing adds up to $250, and total insulation rebates reach $7,700. It is still the best first move in most homes.
For full program details and to apply, visit the official Home Renovation Savings™ program.
Insulation is the largest envelope category in the Home Renovation Savings™ program, worth up to $7,700 across attic, wall, basement, and exposed floor work. Attic insulation on its own is $1,250, increased from the earlier $1,000, and air sealing adds up to $250.
Warm air rises and escapes through gaps around light fixtures, plumbing stacks, and attic hatches. Adding insulation without sealing those gaps first traps the problem instead of solving it — which is exactly why the $250 air sealing rebate is worth claiming at the same time as the $1,250 attic top-up.
A typical older Ontario home may have attic insulation well below current recommended levels. Topping it up disrupts almost nothing inside the living space, which is part of why it is such a common starting point.
Insulation improvements are also among the easiest to document, since before-and-after values are straightforward to measure and record during the pre- and post-work energy assessments the $600 assessment rebate helps cover.
Watch for ventilation. Adding insulation without maintaining soffit and roof venting can cause moisture problems, so a contractor who talks about airflow is a good sign.
Reaching the full $7,700 generally requires substantial wall or basement work, not an attic top-up alone. Ask your contractor which specific measures they are claiming and at what rate.