Proudly Serving Central Ontario Since 1992
With offices in both Barrie and Newmarket, T. Simpson Roofing covers a wide stretch of Central Ontario — from Georgian Bay through Simcoe County and south into GTA North.
When you call T. Simpson, you’re not getting a contractor who has to figure out your area. You’re getting a team that knows your neighbourhood, understands your climate, and has been working in your community for over 30 years. Whether you need a new roof, updated siding, replacement windows or a complete exterior refresh, we’ve got Central Ontario covered.
Where we work
Simcoe County
Barrie, Innisfil, Bradford West Gwillimbury, Collingwood, Angus, Orillia, Midland, Penetanguishene & the Georgian Bay area.
York Region
Newmarket, Aurora, East Gwillimbury, Georgina, Bradford, Richmond Hill & Markham.
GTA North
Stouffville, Uxbridge & surrounding communities north of the city.
Don’t see your town? We likely still cover it — Barrie, Newmarket, Innisfil, Bradford, Aurora, Collingwood, Orillia, East Gwillimbury, Georgina, Stouffville and many more. Send your address and we’ll confirm.
Why local matters for your roof
Central Ontario’s climate is hard on roofs and exteriors. Decades of working in it means we build for the conditions your home actually faces.
Freeze-thaw cycles
Central Ontario winters swing above and below freezing repeatedly. Water works into small cracks, freezes, expands and pries roofing apart — so materials and installation have to be right.
Heavy snow loads
Roofs here carry serious snow. Proper structure, fastening and flashing keep that weight from finding its way inside.
Ice dams
Poor ventilation and insulation let ice dams form at the eaves, backing water up under shingles. We build roofs that manage it.
Wind & storm exposure
From open rural stretches to the Georgian Bay corridor, wind and storms test every roof. We install to stand up to them.
Two offices. One standard of quality.
A full suite of exterior services, wherever you are in our service area.
Find our Barrie office
41 King Street, Unit 6, Barrie, ON L4N 6B5(705) 739-1527Mon–Fri, 9:00am – 5:00pmWherever you are in Central Ontario, we’ve got you covered
Send your details or call and we’ll follow up to assess the work and quote it.
Request information
Two quick steps — tell us what you need, then leave your details. We’ll follow up to assess the work and quote it.