Top-Rated Insulation Installers in Burlington, ON

5 local companies ranked by 453 Google reviews. Free to compare, no sign-up.

Ratings collected September 2026 · Page updated September 30, 2026

5Companies
453Google reviews
4.9★Average rating
Sep 2026Data collected
Ranked by Google reviewsNever paid forFree to compare

Short answer: The top-rated insulation installers in Burlington are Diversified Insulation (4.9★, 248 reviews), Koala Insulation of Halton (5.0★, 62 reviews), Silicone Seals Caulking Sealing & Pest Blocking (4.9★, 80 reviews).

Insulation installers in Burlington, ranked 5 listed

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  1. 1
    Diversified InsulationTop pickMost reviews
    4.9 (248 Google reviews)
    Diversified Insulation, 169 Industrial Dr A, Burlington, WI 53105
    Call (262) 321-4677WebsiteGoogle reviewsDirections
  2. 2
    Koala Insulation of HaltonTop pickHighest rating (50+ reviews)
    5.0 (62 Google reviews)
    1140 Heritage Rd #13, Burlington, ON L7L 4X9
    Call (289) 815-6605WebsiteGoogle reviewsDirections
  3. 3
    Silicone Seals Caulking Sealing & Pest BlockingTop pick
    4.9 (80 Google reviews)
    1235 Fairview St Ste 235, Burlington, ON L7S 2H9
    Call (647) 207-3462WebsiteGoogle reviewsDirectionsEmail [email protected]
  4. 4
    Complete Attic Insulation Inc
    4.9 (50 Google reviews)
    2022 Cavendish Dr, Burlington, ON L7P 1Y7
    Call (289) 962-8530WebsiteGoogle reviewsDirectionsEmail [email protected]
  5. 5
    Domurad Spray Foam
    4.7 (13 Google reviews)
    4136 S Service Rd Unit 5, Burlington, ON L7L 4X5
    Call (905) 483-2541Google reviewsDirections

Together these 5 companies average 4.9★ across 453 reviews. Diversified Insulation has the most reviews (248).

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 Burlington

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 Burlingtonup 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.

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Why insulation matters in Burlington

In Burlington, the average January low is -7°C, colder than 69% 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 Burlington. 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 Burlington.

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