(416) 318-4202
Northstar Spray Foam and Insulation
ULC-listed spray-applied fireproofing for structural steel & decks

Commercial Fireproofing

We're a Carboline-certified applicator of cementitious and intumescent fireproofing coatings used to protect structural steel, columns, beams, and concrete decks to meet Ontario Building Code fire-resistance ratings — from 1-hour up to 4-hour assemblies.

(416) 318-4202Free Quote

Get a Free Quote

No-obligation, on-site assessment within 48 hours.

By submitting, you agree to be contacted about your project.

Fully Insured
CUFCA Certified
2-Year Warranty
Same-Week Service
About Fireproofing

Why GTA homeowners & builders choose Northstar for fireproofing

From condo towers and hospitals to warehouses and parking structures, Northstar's fireproofing crews work on commercial and institutional projects across the GTA. We are certified by Carboline for the application of both cementitious and intumescent fireproofing systems. We coordinate with GCs, inspectors, and engineers; document mil thicknesses; and deliver inspection-ready work on schedule.

Key Benefits

1, 2, 3 and 4-hour ULC ratings
Cementitious & intumescent systems
Fully compliant with OBC & NBC
Experienced with large-scale tenders
WSIB-covered, $5M liability insurance
Inspection coordination included

Common Applications

High-rise condos & towersCommercial officesWarehouses & distributionHospitals & institutionalParking structuresIndustrial plants
Service Areas

Commercial Fireproofing by City

Local crews and same-week scheduling across the Greater Toronto Area.

Mississauga
Peel Region
Brampton
Peel Region
Toronto
Toronto
Vaughan
York Region
Markham
York Region
Oakville
Halton Region
Burlington
Halton Region
Hamilton
Hamilton
Etobicoke
Toronto
North York
Toronto
Customer Stories

What GTA Homeowners & Builders Say

"Northstar spray-foamed our basement and rim joists. The cold spots are gone and our gas bill dropped 35%. Crew was on time and spotless."

Sarah M.
Mississauga

"Hired them for fireproofing on a 6-storey build. Hit every inspection and stayed ahead of schedule. We've already booked them for the next project."

David L.
Vaughan

"Removed nasty old attic insulation full of rodent damage and topped us up to R-60 in one day. Highly recommend."

Priya K.
Oakville

"Got three quotes — Northstar wasn't the cheapest but the most professional by a mile. Quality of work was excellent."

Mark T.
Toronto
FAQ

Commercial Fireproofing FAQ

Closed-cell spray foam typically runs $2.50–$4.50 per board foot installed, open-cell $1.50–$2.50 per board foot, and blown-in attic top-ups $1.80–$3.20 per sq ft. A typical 1,500 sq ft basement spray foam project in the GTA lands between $5,500 and $9,500. Every Northstar quote is free, written, and all-in — no surprise charges.

Free fireproofing quote — anywhere in the GTA

Call (416) 318-4202 or request online — same-week service available.

Call (416) 318-4202Get Free Quote