Multi-Platform Reputation
8.3/10
Rated on 2 platforms — Google 4.9, Facebook 5.0; ratings agree
Dependable, knowledgeable and pleasant to work with — that's why Gentech Roofing's customers come back, thirty years into its family-owned run as a GTA commercial and industrial flat-roofing specialist.
4.9★ from 51 Google reviews
Rated on 2 platforms — Google 4.9, Facebook 5.0; ratings agree
Has a website and a published email on its own domain
Not in the Google Maps local top results
~1.5 years on Google Maps (from total-reviews ÷ monthly rate)
Not on Three Best Rated / BBB
~56 reviews across 2 platforms
Mentions 3 service areas on home page (e.g. brampton, mississauga, toronto)
On 1 extra platforms; reachable by website, email, phone
5 platforms linked: Facebook, Instagram, LinkedIn, TikTok, YouTube · ~5 Facebook reviews
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By Shawn Haynes on Jan 8, 2026 Verified by Google
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.
By Shawn Haynes on Jan 8, 2026 Verified by Google
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.
By Nadine Flores on Dec 18, 2025 Verified by Google
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.
By Nadine Flores on Dec 18, 2025 Verified by Google
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.
By Stephany Saldana Diaz on Nov 3, 2025 Verified by Google
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!!
By Alex T on Oct 13, 2025 Verified by Google
Highly recommend Gentech Roofing! They were super friendly and very informative. Sue was an absolute pleasure to work with from start to finish. Great Team over all.
By Alex T on Oct 13, 2025 Verified by Google
Highly recommend Gentech Roofing! They were super friendly and very informative. Sue was an absolute pleasure to work with from start to finish. Great Team over all.
By Andrea Figueroa on Oct 4, 2025 Verified by Google
Had a great experience getting our flat roof done. Tina was fantastic—super helpful, responsive, and made the whole process easy. The crew did a solid job and everything was completed on time. Really happy with the results!!
By Zandre Raftopoulos on Oct 3, 2025 Verified by Google
Amazing Team work!They were professional, reliable and did high-quality work. It’s clear they take pride in what they do. We’re very happy with our new roof and would definitely recommend them to anyone looking for honest, dependable service.
By Cassandra Wylde on Sep 23, 2025 Verified by Google
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!
By Raspberry Booby on Jan 18, 2018 Guest Review
Big thanks to everyone at Gentech Roofing for your amazing work. I'd like to say first that this company is the most professional company we dealt with. The roofers are very kind and respectful people. Our office leak problem has been finally solved.
Thanks Gentech, you guys rock!
By Maroon Parrot on Sep 2, 2016 Guest Review
Gentech's service is top of the mark!
They respond to Battlefield's needs quickly and keep our facility dry...
By roychan on Sep 2, 2016 Verified by Email
After a long and dry summer, we had a few days of extreme rains which flooded our interior offices and proshop areas. At first we tried to identify and fix the issues ourselves with some grading around the exterior but more rains came and the problem was not solved. That's when we called Gentech Roofing. They came and quickly analyzed the situation and fixed the problem the next day. We've since had some precipitation and the problem has been solved!
We're extremely happy with the work by Gentech Roofing. They were professional and quick to fix our roof-line leak and we would recommend this company and use them again in the future.
Thank you Gentech!
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Gentech Roofing 4.9 out of 5.0 based on 54 user reviews.