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5 Best Spray Foam Insulation in Toronto (2026)

Independently ranked by our review of ratings, reviews and reputation · How we chose

Brad Smith
By Brad Smith, Home Services Expert · ✓ Data verified July 2026 · 7 min read

Icicles hanging off the roof next door but not yours is usually a tell that someone's insulation is doing its job. Two of the five spray foam insulation contractors in Toronto compared here, Four Seasons Insulation and Eco-therma, hold a perfect 5.0 rating, and Four Seasons backs that score with 192 reviews against Eco-therma's 80. Review counts across the group run from 58 up to that 192 high.

Short answer: Four Seasons Insulation and Eco-therma Inc. both hold perfect 5.0 ratings, with Four Seasons carrying the larger review base at 192 reviews against Eco-therma's 80. Foam Comfort Inc. (4.9, 180 reviews) is a closed-cell spray foam specialist running since 2006. Rebates came up in a few reviews, worth asking each contractor directly since programs and amounts change.
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How Toronto's Spray Foam Contractors Compare

# Business Rating Reviews Best for
1 Four Seasons Insulation 5.0 ★ 192 Attic + spray foam combined View ›
2 Foam Comfort Inc. 4.9 ★ 180 Closed-cell spray foam specialist View ›
3 Pro Insulation Contracting 4.9 ★ 155 Custom home + multi-job projects View ›
4 Eco-therma Inc. 5.0 ★ 80 Attic insulation + mold remediation View ›
5 Better Living Insulation Inc 4.9 ★ 58 Garage + smaller spray foam jobs View ›
5 Best Spray Foam Insulation in Toronto (2026)

Our picks, reviewed

Four Seasons Insulation logo
#1 Overall🕑 Open 6 days/wk

Four Seasons Insulation

5.0192 Google reviews

Four Seasons Insulation is a Mississauga-based contractor covering attic insulation, spray foam, insulation removal, and mold inspection across the GTA, positioning itself as a one-stop shop rather than a spray-foam-only specialist. Its site says it's been running for well over 10 years, focused on quality product and workmanship over the cheapest quote. Owner Michael is named directly in nearly every review, handling jobs from small attic top-ups to full mold-related insulation replacements.

What people praise

  • Owner Michael personally handles inspections through to final cleanup, per multiple reviews
  • Reviewers highlight noticeable comfort and energy-bill improvements after the job
  • Handled a complicated blocked-soffit and moisture issue, not just a routine top-up
  • Consistently described as clean and thorough on cleanup
Reputation scorecardrank in Toronto
Rating5 / 5
Review volume192 · 97th
Confidencehigh
Recency2 months ago
Info completenesssite · phone · hours
Rating breakdown98% 5-star
✓ VerifiedSource: Google

Our take: It has the largest review base on this page with a perfect rating to match, and the range of jobs described, from routine top-ups to a genuinely tricky ventilation fix, backs that up.

Website+1416-727-4181 Directions

600 Silver Creek Blvd #34, Mississauga, ON L5A 2B4

Foam Comfort Inc. logo
#2🕑 Open 5 days/wk↩ Responds to reviews

Foam Comfort Inc.

4.9180 Google reviews

Foam Comfort has specialised specifically in closed-cell spray foam insulation since 2006, according to its site, working both residential basements and commercial fire-safety and thermal-barrier projects. It's Canadian owned and operated, and its reviews describe it consistently beating out multiple competing quotes on both price and scheduling speed. Unlike some of the others on this list, spray foam is its core focus rather than one service among several.

What people praise

  • Reviewers repeatedly say it beat two or three competing quotes on both price and speed
  • Crews show up early and finish without leaving mess, per multiple reviews
  • Handles both small basement jobs and larger commercial projects
  • The owner and a lead installer are both named and praised directly across reviews
Reputation scorecardrank in Toronto
Rating4.9 / 5
Review volume180 · 92th
Confidencemoderate
Recency7 weeks ago
Info completenesssite · phone · hours
Rating breakdown96% 5-star
✓ VerifiedSource: Google

Our take: It's the most specifically spray-foam-focused contractor on this list, and a near-perfect rating across 180 reviews backs up that specialisation.

Website+1416-410-0961 Directions

56 McGee St, Toronto, ON M4M 2K9

Pro Insulation Contracting logo
#3🕑 Open 6 days/wk↩ Responds to reviews

Pro Insulation Contracting

4.9155 Google reviews

Pro Insulation Contracting has served Southern Ontario since 2016, according to its site, offering attic, crawl space, spray foam, cellulose, fiberglass, and batt insulation alongside drywall and taping work. It's based in Markham and handles both single jobs and larger custom-home projects with multiple insulation types in one build. Reviews describe it running rebate inquiries alongside standard jobs, helping clients access available government incentives.

What people praise

  • Handled three separate jobs across one custom-home build, all praised as on time and on budget
  • Reviewers highlight clear communication and accommodating scheduling changes
  • Named team members get individual credit across multiple reviews
  • Comfort and efficiency improvements are specifically noted post-job
Reputation scorecardrank in Toronto
Rating4.9 / 5
Review volume155 · 87th
Confidencemoderate
Recency2 months ago
Info completenesssite · phone · hours
Rating breakdown97% 5-star
✓ VerifiedSource: Google

Our take: Its range, spray foam plus drywall and multiple insulation types, makes it a strong pick if your project is bigger than a single attic top-up.

Website+1416-315-0471 Directions

185 Riviera Dr Unit 11, Markham, ON L3R 5M1

Eco-therma Inc. logo
#4🕑 Open 7 days↩ Responds to reviews

Eco-therma Inc.

5.080 Google reviews

Eco-therma focuses on attic insulation and mold removal together, running free inspections and same-day quotes across the GTA. Its site claims more than 2,000 households improved and 10+ years of experience, backed by a HomeStars rating and a workmanship warranty. Reviews describe it specifically tackling moisture and mold issues caused by poor bathroom-fan venting alongside the insulation work itself, not just insulating over an existing problem.

What people praise

  • Fixed a moisture-venting problem that was actually causing mold, not just insulated over it
  • One reviewer's job included a $1,000 rebate applied directly by the company
  • The owner is named and praised for clear explanations throughout the job
  • Crews are specifically noted for careful, damage-free work in tight attic spaces

Worth knowing

  • Fewer reviews than the two leaders on this page, so the track record is real but smaller.
Reputation scorecardrank in Toronto
Rating5 / 5
Review volume80 · 82th
Confidenceearly
Recency7 weeks ago
Info completenesssite · phone · hours
Rating breakdown100% 5-star
✓ VerifiedSource: Google

Our take: It's tied for the top rating, but with under half the reviews of Four Seasons, worth weighing that smaller sample against the strong mold-plus-insulation angle.

Website+1866-993-2080 Directions

325 Front St W C-Office 2085A, Toronto, ON M5V 2Y1

Better Living Insulation Inc logo
#5🕑 Open 5 days/wk↩ Responds to reviews

Better Living Insulation Inc

4.958 Google reviews

Better Living Insulation is an Etobicoke contractor whose reviews describe garage, patio, and exterior-wall spray foam jobs specifically, run by a small crew. Its published site content focuses mainly on cellulose blow-in attic insulation, where it says proper top-ups can save 30 to 40 percent a year on heating bills, though its reviews are almost entirely about closed-cell spray foam work rather than the attic service its site describes. It's a smaller operation than the others here, with reviews spanning garages, patios, and dormer cavities.

What people praise

  • Careful overspray protection is specifically noted across multiple garage and patio jobs
  • Transparent, upfront pricing is mentioned repeatedly before work begins
  • The crew is named directly and praised for punctuality and cleanup
  • Handles awkward spaces, like a garage ceiling with existing plumbing, without issue

Worth knowing

  • No phone number listed on its Google profile, so plan to reach out through its website first.
Reputation scorecardrank in Toronto
Rating4.9 / 5
Review volume58 · 76th
Confidenceearly
Recency3 months ago
Info completenesssite · hours
Rating breakdown97% 5-star
✓ VerifiedSource: Google

Our take: It's the smallest team on this list with the fewest reviews, but every one of them is specifically about spray foam work done well, which is worth something if your job is a smaller, contained space like a garage.

Website Directions

45 Sunnylea Ave E, 33 Springhome Rd, Etobicoke, ON M8Y 2K4

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Watch: 5 Best Spray Foam Insulation in Toronto (2026)

How we scored these contractors

Rating is each contractor’s live Google average, and review volume shows how many customers actually left feedback. Confidence blends both, so a strong rating built on more reviews counts for more than the same score on a handful. Recency checks whether people are still reviewing them now. No contractor can pay to move up this list.

What does spray foam insulation cost in Toronto? (2026)

We don’t have a verified, current per-square-foot price list to publish here, and spray foam pricing depends heavily on whether it’s open-cell or closed-cell, the area being insulated (attic, basement, garage), and access. A couple of contractors on this list mentioned rebate programs in their reviews, ask directly what’s currently available since incentive programs change.

Serving Toronto and the GTA

These contractors cover the City of Toronto plus Mississauga, Markham, and Etobicoke, and most will travel further across the GTA for the right job. If you’re searching for spray foam insulation near me in Toronto, decide first whether you need a specialist like Foam Comfort or a broader insulation-plus-mold contractor like Four Seasons or Eco-therma before comparing quotes.

What to ask before hiring a spray foam contractor

  • Is this open-cell or closed-cell foam, and why do you recommend it for my space?
  • Are you insured for spray foam work specifically, not just general contracting?
  • Is a mold or moisture inspection included, or a separate service?
  • Are there current rebate programs I qualify for, and do you help with the paperwork?
  • How long does the job take, and do I need to leave the property during application?
  • What’s the workmanship warranty, and how long does it last?

Frequently asked questions

Are these rankings paid?

No. Rankings come from public Google data. A business can pay to be a Featured Partner (badge and top placement), but that never changes another business’s score or position.

How did you choose these five?

We compared Toronto-area insulation contractors offering spray foam with a real Google track record and ranked them on rating, review volume, and how recently customers are still reviewing them.

How often is this updated?

We last verified this list in July 2026 and refresh it as ratings and review counts change.

Is spray foam better than blown-in or batt insulation?

It depends on the space. Spray foam creates an air-tight seal that’s useful for garages, rim joists, and tricky spaces, while blown-in or batt insulation is often more cost-effective for a straightforward attic top-up. Ask your contractor which fits your specific job.

Do any of these contractors handle mold as well as insulation?

Yes. Four Seasons Insulation and Eco-therma Inc. both list mold inspection or removal alongside their insulation services.

The bottom line

Four Seasons Insulation is the safe default: the largest review base on this list with a perfect rating and a track record that spans routine attic jobs to trickier moisture fixes. If your job is specifically spray foam and nothing else, Foam Comfort’s closed-cell specialisation since 2006 is worth a direct comparison quote.

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