Top-Rated Insulation Installers in Toronto, ON

6 local companies ranked by 259 Google reviews. Free to compare, no sign-up.

Ratings collected September 2026 · Page updated September 30, 2026

6Companies
259Google reviews
4.9★Average rating
Sep 2026Data collected
Ranked by Google reviewsNever paid forFree to compare

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 6 listed

Sort by
  1. 1
    Foam Comfort Inc.Top pickMost reviews
    4.9 (188 Google reviews)
    56 McGee St, Toronto, ON M4M 2K9
    Call (416) 410-0961WebsiteGoogle reviewsDirectionsEmail [email protected]
  2. 2
    Royal InsulationTop pick
    5.0 (19 Google reviews)
    20 Camden St Suite 200, Toronto, ON M5V 3N3
    Call (647) 560-8099WebsiteGoogle reviewsDirectionsEmail [email protected]
  3. 3
    Canada National InsulationTop pick
    5.0 (13 Google reviews)
    50 Ava Rd, Toronto, ON M5P 1Y6
    Call (416) 564-0443WebsiteGoogle reviewsDirections
  4. 4
    Hybrid Insulation
    4.9 (18 Google reviews)
    3142 Dundas St W Suite 202, Toronto, ON M6P 2A1
    Call (647) 799-3473WebsiteGoogle reviewsDirectionsEmail [email protected]
  5. 5
    FoamWorks Insulation
    5.0 (11 Google reviews)
    37 Lavinia Ave, Toronto, ON M6S 3H9
    Call (416) 855-3626WebsiteGoogle reviewsDirections
  6. 6
    Efficiency Spray Foam Insulation Ltd.
    5.0 (10 Google reviews)
    2300 Yonge St #1600, Toronto, ON M4P 1E4
    Call (647) 390-7273Google reviewsDirections

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 never paid for. How we rank and how we make money.

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What a insulation costs in Toronto

Typical installed priceVaries by area

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.

Insulation rebates open in Torontoup to $6,300

That could cut your cost by up to $6,300 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.

Get free quotes from these insulation installers

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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 a insulation installer

  1. Ask whether they will air-seal before insulating, and what they will seal (attic hatch, pot lights, pipes, top plates).
  2. Ask for the R-value before and after for each area, and the material and depth they will install.
  3. Ask whether your rebate needs an energy assessment before and after the work, and who books it.
  4. Ask how they handle ventilation and any old insulation that could contain vermiculite (asbestos risk).

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 in Toronto.

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