(416) 318-4202
Northstar Spray Foam and Insulation
Serving Toronto, Toronto · since 2008

Insulation & Fireproofing in Toronto

Toronto homeowners and builders trust Northstar for energy-saving spray foam, code-compliant fireproofing, and attic insulation upgrades. Local crews. Free quotes. 2-year warranty.

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Fully Insured
CUFCA Certified
2-Year Warranty
Same-Week Service
Local Service

Your Toronto Insulation & Fireproofing Contractor

Toronto's older housing stock — Riverdale Victorians, Beaches semis, Annex brick rowhouses — was never built for today's energy code. Northstar's downtown crews specialize in retrofit spray foam in tight, finished basements and dense-pack cellulose in century-home wall cavities.

Working in Toronto means navigating narrow lanes, permit parking, and shared walls. Our installers are trained for occupied homes, low-dust setup, and the patience required when a job involves three trades and a single staircase. We coordinate with HRAI contractors on Greener Homes rebates where eligible.

Neighbourhoods We Serve in Toronto

The AnnexRiverdaleThe BeachesLeslievilleHigh ParkRoncesvallesCabbagetownJunction
Local building stock

Pre-1940 brick semis and rowhouses, mid-century infill, and dense high-rise condo construction downtown.

Toronto tip

In century Toronto homes, breathable cellulose in wall cavities outperforms spray foam — it lets old brick dry to the inside.

Recent Toronto project

Closed-cell rim-joist and basement-wall spray foam in a 1908 Riverdale semi — eliminated a chronic cold floor above an unheated cellar.

Core Services in Toronto

Spray Foam Insulationin Toronto Commercial Fireproofingin Toronto Attic Insulationblown-in to R-60

More Services Offered in Toronto

Spray Foam Insulation
in Toronto
Commercial Fireproofing
in Toronto
Attic Blown-In Insulation
in Toronto
Fibreglass Batt Insulation
in Toronto
Insulation Removal
in Toronto
Residential Insulation
in Toronto

Why Toronto Homeowners Choose Spray Foam

Ontario winters lose homes huge energy through gaps spray foam seals
Up to R-7 per inch — the highest practical R-value available
Eliminates ice damming on Toronto roofs
Cuts heating & cooling bills 30–50%
Improves indoor comfort year-round in Toronto
Adds structural rigidity to walls and roofs
Residential insulation Toronto

Residential in Toronto

Attics, basements, walls, garages, and crawl spaces. Free quotes for Toronto homeowners.

Residential services
Commercial insulation Toronto

Commercial in Toronto

Offices, condos, retail, and industrial buildings. Tender-ready bids, WSIB coverage, on-time inspections.

Commercial services
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

Toronto Insulation FAQ

Yes — Northstar provides open and closed-cell spray foam insulation throughout Toronto and the surrounding area, for both residential and commercial projects.

Get your free Toronto quote today

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

Call (416) 318-4202Get Free Quote