(416) 318-4202
Northstar Spray Foam and Insulation
Serving Newmarket, York Region · since 2011

Insulation & Fireproofing in Newmarket

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

(416) 318-4202Get Newmarket Quote

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

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

Your Newmarket Insulation & Fireproofing Contractor

Newmarket is established York Region — mature neighbourhoods around Main Street, Yonge corridor commercial, and growing subdivisions on the town edges. Northstar serves Newmarket weekly with attic upgrades and basement spray foam.

A lot of Newmarket housing dates from the 1980s–90s and has never had its attic insulation upgraded since the original install. A blown-in top-up from R-20 to R-60 is one of the highest-return home upgrades a Newmarket homeowner can make.

Neighbourhoods We Serve in Newmarket

StonehavenGlenwaySummerhill EstatesWoodland HillBristol-LondonArmitageHuron Heights
Local building stock

1980s–90s family subdivisions, mid-rise condos along Yonge, and newer infill on town edges.

Newmarket tip

Newmarket's colder-than-Toronto winter lows mean every degree of insulation R-value matters more — don't stop at R-40.

Recent Newmarket project

Blown-in cellulose attic top-up from R-15 to R-60 on a 1988 Stonehaven home — under $2,200 and one day on site.

Core Services in Newmarket

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

More Services Offered in Newmarket

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

Why Newmarket 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 Newmarket roofs
Cuts heating & cooling bills 30–50%
Improves indoor comfort year-round in Newmarket
Adds structural rigidity to walls and roofs
Residential insulation Newmarket

Residential in Newmarket

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

Residential services
Commercial insulation Newmarket

Commercial in Newmarket

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

Newmarket Insulation FAQ

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

Get your free Newmarket quote today

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

Call (416) 318-4202Get Free Quote