Spray Foam Insulation & Fireproofing Across the GTA
Mississauga-based contractor. CUFCA-certified. ULC-listed fireproofing. Free quotes for homes and commercial sites.
Our Services
Spray Foam Insulation
Open and closed-cell polyurethane spray foam for maximum R-value and air sealing.
Commercial Fireproofing
ULC-listed spray-applied fireproofing for structural steel and concrete decks.
Attic Blown-In Insulation
Top up to R-60 with blown-in cellulose or fibreglass for year-round comfort.
Fibreglass Batt Insulation
Cost-effective batt insulation for walls, ceilings, and basements.
Insulation Removal
Safe vacuum removal of old, contaminated, or rodent-damaged insulation.
Residential Insulation
Whole-home insulation services for GTA homeowners and renovators.
Commercial Insulation
Insulation and fireproofing for offices, retail, condos, and institutional builds.
Industrial Insulation
Heavy-duty insulation and fireproofing for warehouses, plants, and facilities.
Why Choose Northstar
- 15+ years insulating GTA homes and commercial sites
- $5M liability, WSIB-covered, fully insured
- CUFCA-certified spray foam installers
- ULC-listed fireproofing applicator
- 2-year workmanship warranty
Service Areas
Mississauga · Brampton · Etobicoke · Toronto · North York · Vaughan · Concord · Richmond Hill · Markham · Scarborough · Oakville · Burlington · Milton · Georgetown · Caledon · Bolton · Woodbridge · Maple · Aurora · Newmarket · Pickering · Ajax · Whitby · Oshawa · Hamilton
Frequently Asked Questions
How much does spray foam insulation cost in the GTA?
Most residential spray foam projects in the GTA range from $2,500 to $8,000 depending on square footage, foam type (open vs closed-cell), and access. We provide free written quotes and can advise on Enbridge HER+ and federal rebates that may apply.
Are you licensed and insured?
Yes — Northstar carries $5,000,000 commercial general liability, WSIB clearance, and our installers are CUFCA-trained and certified for spray foam and ULC-listed fireproofing application.
How long does an attic insulation top-up take?
Most attic top-ups to R-60 are completed in a single day, typically 3–5 hours for an average home. Insulation removal jobs add about half a day.
What warranty do you provide?
All residential workmanship is backed by a 2-year guarantee. Spray foam and fireproofing materials carry the manufacturer’s lifetime warranty.
What areas of the GTA do you serve?
We serve the entire Greater Toronto Area including Mississauga, Brampton, Toronto, Vaughan, Markham, Oakville, Burlington, Pickering, Whitby, Hamilton and surrounding communities.