Contact Us

Flat Roofs specializes in Roofing and Sheetmetal applications for Commercial and Industrial buildings. Gentry is a family owned and operated business which services Southern Ontario, GTA, Markham, Newmarket, Woodbridge, Brampton, Mississauga, Etobicoke, Port Perry, Newcastle, Durham Region, York Region, and Peel Region.

We provide FREE estimates and have written guarantees for all projects.

We look forward to hearing from you and discussing your specific commercial and/or industrial roofing needs in Ontario.

By providing top quality products and expert workmanship, with value pricing for all our customers.

Please Contact us by telephone at

Durham Region
(905) 725-1093
(416) 777-1093
Toll Free
1 (877) 725-1093
(905) 725-8078
Head Office
500 Wentworth Street East, Unit 9
Oshawa, Ontario
L1H 3V9

Flat Roofs Contact Center Toronto

or by email at