Gentech Roofing

Shawn Haynes

Jan 8, 2026

I recently dealt with a persistent leak that was difficult to locate. Roger and the team at GENTECH were outstanding—Roger accurately diagnosed the issue and efficiently replaced the vent, caulking, and repaired the shingles. The staff was professional and friendly throughout the process. I highly recommend their services.

Nadine Flores

Dec 18, 2025

The work was handled professionally and efficiently, and communication throughout the process was excellent. A special mention to Christine and the office staff—the office girls did an outstanding job with administration, scheduling, and keeping us informed every step of the way. Highly recommend this company for anyone looking for reliable commercial roofing services.

Stephany Saldana Diaz

Nov 3, 2025

Christine was absolutely amazing and quick to respond to my emails and calls. The crew showed up on time, got the roof done quickly, and it looks awesome! Super happy with the whole team at Gentech Roofing! 100% recommend!!

~Hillary ~

Sep 25, 2025

Had a great experience with Gentech Roofing in Mississauga. Dan, the foreman, was punctual and made sure that everything ran smoothly from beginning to end. He was really polite and respectful, and his crew worked efficiently. The roof looks better than I expected! And the whole process was stress-free. Definitely recommend them if you're looking for solid, reliable roof work!

Cassandra Wylde

Sep 23, 2025

Had a great experience using Gentech Roofing. They were professional, efficient, and easy to work with. Dylan did a thorough inspection, and gave me great recommendations. The quality of their work is excellent, and I appreciate how clean they left the site after finishing. I'd definitely recommend them!