Top Insulation Contractors in Barrie (Attic, Crawl Space & Spray Foam)
Looking for attic top-ups, crawl space encapsulation, or full spray foam insulation? These are the same crews doing all three — Barrie's insulation contractors handle attics, crawl spaces, and basements together rather than as separate specialties, so we've combined them into one trusted list instead of splitting hairs across near-identical pages.
Looking for the best Attic Insulation Services in Barrie? This list ranks 10 local Attic Insulation Services businesses, selected for local presence, service quality, and relevance to Barrie-area customers.
How We Selected This List
MBM ranks Barrie businesses in this category by local presence, service breadth, and relevance to Barrie-area customers. Listings are reviewed periodically for accuracy — see the "Updated" date below.
Spartan Insulation
Spray foam and blown-in insulation contractor serving homes, workshops, and commercial spaces across Barrie.
Why It Made the List: Consistently praised for punctuality, clear communication, and clean job-site work across dozens of reviews — currently the highest-reviewed insulation company in Barrie.
Website: spartaninsulation.ca
Phone: 1-888-225-9223
Address: 131 Saunders Rd, Barrie, ON L4N 9A7 (View on Map)
Rating: 4.9★ (59 reviews)
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Great Northern Insulation
Established insulation contractor offering attic top-ups, blown-in fibreglass, crawl space encapsulation, and general home insulation services — one of Ontario's largest dedicated insulation companies.
Why It May Be Worth Considering: Highest review volume in the category by far, though several reviews mention slow callback response — worth confirming a firm timeline before booking.
Website: gni.ca
Phone: 1-800-265-1914
Address: 29 Ferndale Industrial Dr, Barrie, ON L4N 0X5 (View on Map)
Rating: 4.3★ (151 reviews)
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Spray Foam Masters Barrie
Closed-cell and blown-in fibreglass spray foam specialist for attics, walls, and rim joists.
Why It Made the List: Reviewers specifically praise fair pricing and a clean, professional install — including work that passed formal building inspection.
Website: sprayfoammasters.ca
Phone: (705) 571-3008
Address: 27 Willow Fern Dr, Barrie, ON L4N 1S7 (View on Map)
Rating: 4.8★ (21 reviews)
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DNS Insulation
Family-run attic and insulation contractor, including rafter vent repair, blown-in top-ups, and crawl space work.
Why It Made the List: Multiple reviews single out the owner's honesty — only recommending work that's actually needed rather than upselling.
Website: dnsinsulation.ca
Phone: (416) 660-8355
Address: 208 Nina Rd, Barrie, ON L4N 7Y6 (View on Map)
Rating: 5.0★ (8 reviews)
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DR Foam Insulation Services Ltd.
Spray foam insulation and soundproofing contractor for attics, basements, and finished spaces.
Why It May Be Worth Considering: Mostly strong reviews for clean, timely work, though one review flagged a pricing dispute after the quote — worth getting everything confirmed in writing upfront.
Website: drfoam.ca
Phone: (705) 733-1163
Address: 164 Innisfil St, Barrie, ON L4N 3E7 (View on Map)
Rating: 4.0★ (5 reviews)
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Spray Foam Barrie
Spray foam insulation contractor, including full basement 2lb closed-cell foam jobs.
Why It Made the List: Reviewers highlight a clean job site and a successful building inspection pass on a full basement install.
Phone: (705) 881-1945
Address: 14 Tudor Crescent, Barrie, ON L4M 0A8 (View on Map)
Rating: 4.2★ (5 reviews)
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Insulation Barrie
Local insulation contractor with extended hours (7 AM–7 PM most days).
Why It May Be Worth Considering: Convenient hours and central Dunlop St location; no public review history yet to confirm quality — worth asking for references directly.
Phone: (705) 999-5348
Address: 37 Dunlop St E, Barrie, ON L4N 1A2 (View on Map)
Rating: Not yet rated
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Get Featured for only $9.99/monthFrequently Asked Questions
Who are the top Attic Insulation Services in Barrie?
The businesses listed above are among Barrie's most established Attic Insulation Services providers, based on local presence and service reputation.
How do I choose the right Attic Insulation Services provider in Barrie?
Compare services offered, request quotes from a few providers, and check recent local reviews before deciding.
How often is this list updated?
MBM reviews this list periodically for accuracy. See the "Updated" date below.
Updated: September 2026
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