Commercial Fireproofing in Markham
Northstar's Markham crews deliver fireproofing for homeowners, builders, and commercial clients. Free quotes, 2-year warranty, licensed & insured.
Fireproofing Contractor in Markham
Markham is one of the GTA's most active markets for both new construction and high-end renovations. Northstar works with builders in Cornell, Berczy, and Cathedraltown, and serves mature Unionville and Thornhill homeowners upgrading 30+ year-old attics.
Markham customers know what they want and ask sharp questions — we welcome that. Every quote spells out foam type, thickness, R-value, board-feet, and the CCMC listing. No surprises, no upsell pressure.
Neighbourhoods We Serve in Markham
New-build subdivisions, 1990s executive housing, and heritage homes along Main Street Unionville.
Markham's deeper-than-average frost line means basement-wall spray foam should extend full-height to the slab, not just the rim.
Attic spray foam and cathedral-ceiling retrofit on a 1991 Unionville home — eliminated ice damming after a single winter.
Why Markham Chooses Northstar for Fireproofing
Fireproofing Applications in Markham
Our Services in Markham
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."
"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."
"Removed nasty old attic insulation full of rodent damage and topped us up to R-60 in one day. Highly recommend."
"Got three quotes — Northstar wasn't the cheapest but the most professional by a mile. Quality of work was excellent."
Fireproofing in Markham — FAQ
Get your free fireproofing quote in Markham
Call (416) 318-4202 or request online — same-week service available.