Top-Rated Insulation Installers in Barrie, ON
3 local companies ranked by 231 Google reviews. Free to compare, no sign-up.
Short answer: The top-rated insulation installers in Barrie are Spartan Insulation (4.9★, 58 reviews), Spray Foam Masters Barrie (4.8★, 21 reviews), Great Northern Insulation (4.3★, 152 reviews).
Insulation installers in Barrie, ranked
- 4.9 (58 Google reviews)131 Saunders Rd, Barrie, ON L4N 9A7
- 4.8 (21 Google reviews)27 Willow Fern Dr, Barrie, ON L4N 1S7
- Great Northern InsulationMost reviews4.3 (152 Google reviews)29 Ferndale Industrial Dr, Barrie, ON L4N 0X5
Together these 3 companies average 4.5★ across 231 reviews. Great Northern Insulation has the most reviews (152).
Ranked by Google rating weighted by review count, collected September 2026. Rankings are not paid for. How we rank and how we make money.
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What a insulation costs in Barrie
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 Barrie. Read when to call an energy advisor.
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Why insulation matters in Barrie
In Barrie, the average January low is -10°C, colder than 88% of the 123 cities we track. With winters this cold, the attic is usually the best place to start. Ask the installer to seal air leaks around lights, pipes and the attic hatch before adding insulation, or much of the benefit is lost.
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 Barrie
Who is the best insulation installer in Barrie?
Based on Google reviews, the top-rated insulation installers in Barrie are Spartan Insulation (4.9★, 58 reviews), Spray Foam Masters Barrie (4.8★, 21 reviews), Great Northern Insulation (4.3★, 152 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 Barrie ranked?
We list 3 insulation companies in Barrie, ranked by Google rating weighted by review count. Together they have 231 Google reviews and average 4.5 stars, collected September 2026. Great Northern Insulation has the most reviews (152). No company pays to be listed or ranked.
How much does insulation cost in Barrie?
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 Barrie?
Yes. Our verified program data shows insulation rebates up to $7,700 open in Barrie. 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 Barrie?
In Barrie, the average January low is -10°C, colder than 88% of the 123 cities we track. With winters this cold, the attic is usually the best place to start. Ask the installer to seal air leaks around lights, pipes and the attic hatch before adding insulation, or much of the benefit is lost. 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 Barrie. 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 Barrie.
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?
Short reads and quick quizzes. Learn the rules first, then call.
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