Top-Rated Insulation Installers in Toronto, ON
6 local companies ranked by 259 Google reviews. Free to compare, no sign-up.
Short answer: The top-rated insulation installers in Toronto are Foam Comfort Inc. (4.9★, 188 reviews), Royal Insulation (5.0★, 19 reviews), Canada National Insulation (5.0★, 13 reviews).
Insulation installers in Toronto, ranked
- 4.9 (188 Google reviews)56 McGee St, Toronto, ON M4M 2K9
- 5.0 (19 Google reviews)20 Camden St Suite 200, Toronto, ON M5V 3N3
- 5.0 (13 Google reviews)50 Ava Rd, Toronto, ON M5P 1Y6
- 4.9 (18 Google reviews)3142 Dundas St W Suite 202, Toronto, ON M6P 2A1
- 5.0 (11 Google reviews)37 Lavinia Ave, Toronto, ON M6S 3H9
- 5.0 (10 Google reviews)2300 Yonge St #1600, Toronto, ON M4P 1E4
Together these 6 companies average 4.9★ across 259 reviews. Foam Comfort Inc. has the most reviews (188).
Ranked by Google rating weighted by review count, collected September 2026. Rankings are not paid for. How we rank and how we make money.
Listed here? Get your top-rated badge for your website or print the Toronto rebate sheet for your customers.
What a insulation costs in Toronto
Price depends on which areas you insulate (attic, walls, basement) and how much air sealing is needed. Ask each company for a price per area and the R-value you end up with, so quotes are easy to compare.
That could cut your cost by up to $7,700 if you qualify. Most rebates have rules (income, your current heating, a registered contractor, approval before work starts).
Rebates: our verified program data, checked monthly. Always confirm the exact amount for your home.
Talk to a registered energy advisor first. Some rebates need an evaluation or heat load calculation before any work starts. See the top-rated registered energy advisors in Toronto. Read when to call an energy advisor.
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Why insulation matters in Toronto
In Toronto, the average January low is -7°C, colder than 67% of the 123 cities we track. Sealing air leaks and topping up the attic usually pays back fastest here. Basement walls and rim joists are often the next biggest heat loss in older homes.
Most rebate programs pay only after an energy assessment, and some need one before the work too. Book it first.
Source: Open-Meteo historical weather data, 2015-2024.
Before you hire an insulation installer
- Ask whether they will air-seal before insulating, and what they will seal (attic hatch, pot lights, pipes, top plates).
- Ask for the R-value before and after for each area, and the material and depth they will install.
- Ask whether your rebate needs an energy assessment before and after the work, and who books it.
- Ask how they handle ventilation and any old insulation that could contain vermiculite (asbestos risk).
Questions about insulation installers in Toronto
Who is the best insulation installer in Toronto?
Based on Google reviews, the top-rated insulation installers in Toronto are Foam Comfort Inc. (4.9★, 188 reviews), Royal Insulation (5.0★, 19 reviews), Canada National Insulation (5.0★, 13 reviews). We rank by a review-weighted score, so companies with many strong reviews rank above those with only a few.
How are the insulation installers in Toronto ranked?
We list 6 insulation companies in Toronto, ranked by Google rating weighted by review count. Together they have 259 Google reviews and average 4.9 stars, collected September 2026. Foam Comfort Inc. has the most reviews (188). No company pays to be listed or ranked.
How much does insulation cost in Toronto?
Insulation prices depend on which areas you insulate (attic, walls, basement) and how much air sealing is needed. Ask each company for a price per area and the R-value you end up with, so quotes are easy to compare.
Are there rebates for insulation in Toronto?
Yes. Our verified program data shows insulation rebates up to $7,700 open in Toronto. Most rebates have rules, such as income, your current heating, a registered contractor, or approval before work starts, so check the rebate page before you sign.
Is insulation worth it in Toronto?
In Toronto, the average January low is -7°C, colder than 67% of the 123 cities we track. Sealing air leaks and topping up the attic usually pays back fastest here. Basement walls and rim joists are often the next biggest heat loss in older homes. Most rebate programs pay only after an energy assessment, and some need one before the work too. Book it first.
What should I ask an insulation installer before I hire?
Ask whether they will air-seal before insulating, and what they will seal (attic hatch, pot lights, pipes, top plates). Ask for the R-value before and after for each area, and the material and depth they will install. Ask whether your rebate needs an energy assessment before and after the work, and who books it.
Before you call anyone, check what insulation rebates you can get in Toronto. Many programs require approval or a registered contractor before work starts.
Planning more upgrades? See the top-rated heat pump installers, solar installers, home battery installers, energy advisors in Toronto.
How to read these results
- Open the profile.How a installer describes its own work tells you a lot. Look for jobs like yours.
- Read the Google reviews.Stars and counts come from Google Maps. Click through and read what past customers wrote, good and bad.
- Check for program badges.A green registered-contractor badge means the company is on the program's own list, which some rebates require.
- Compare three.Do not stop at the first good installer. Three quotes show you the real range in price, equipment and plan.
Not ready to talk to a contractor yet?
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