Gentech Roofing

We hold no one or two-star review text for Gentech Roofing. That is not the same as there being none — it means our capture did not reach any. The rating breakdown above is Google’s own count and is the number to go on.

• roofing company7
• quality of work6
• easy process5
• commercial roofing4
• flat roofing3
• informative staff2
• responsive staff2
• family owned business2
• pride in work2
• recommendation2

14 more of the 38 reviews we hold text for, most recent first. We do not hold every review Google has.

• 5 out of 5Shawn Haynes7 months ago

  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.

• 5 out of 5CORAL AGUILER7 months ago

  I was referred to them by a friend and since the very first call their customer service was amazing!

• 5 out of 5Chanel Joanna7 months ago

  Christine, Tina and Sue were an absolute pleasure to work with. The whole crew at Gentech Roofing did an outstanding job!

• 5 out of 5Ryan Pryce (Poppa Pryce)7 months ago

  This was the best experience ever!

• 5 out of 5Ashley Filiatrault7 months ago

  They did an amazing job overall. I would 100% recommend Gentech for any commercial roofing!

• 5 out of 5Nadine Flores8 months ago

  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 …

  Google cut this review short. The full text is on their Google profile.

  Reply from the business

  Thank you so much Nadine for your kind review. We're so happy to hear that you had a good experience with Christine and the entire office staff. It was a pleasure working with you. Please don't hesitate to reach out if we can help again.

• 5 out of 5Luke Muir8 months ago

  Excellent roofing company! They communicated clearly, worked efficiently, and delivered top-quality results. I’d definitely use them again.

  Reply from the business

  Hey Luke, Thank you for your glowing review! We're so glad you're happy with the results. If you ever need anything else- don't hesitate to reach out!

• 5 out of 5Maria Marta Gadelha8 months ago

  Great experience with this roofing company. They were Fast, reliable, and very knowledgeable. The roof looks fantastic! I absolutely use them again.

  Reply from the business

  We appreciate your kind words! It was a pleasure working on your roof, and we're glad we could deliver the results you were looking for. Thanks for choosing us!!

• 5 out of 5Rafaela Botelho8 months ago

  They did a great job and the customer service was Excellent! Special thanks to Sue and the office girls :)!!!!

  Reply from the business

  Hey Rafaela! We really appreciate you taking the time to write a positive review. We will certainly let Sue know that she exceeded your expectations! We look forward to working with you in the near future.

• 5 out of 5Anwar cushnie8 months ago

  They do amazing work! Highly recommended!!

  Reply from the business

  Thank you for your 5-star review!!! Its much appreciated!! We truly appreciate you taking the time to share your experience!

• 5 out of 5Stephany Saldana Diaz9 months ago

  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!!

  Reply from the business

  Thank you so much for your kind words, we will be sure to share this review with Christine and the entire team. We truly appreciate your 5-star review.

• 5 out of 5Nicole Jerez9 months ago

  Nice to know Gentech is a Canadian-family owned business. They did a great job overall and the customer service was exceptional!

  Reply from the business

  Hey Nicole! Thank you for taking the time to write us a positive review! We appreciate your business, and look forward to working with you in the near future.

• 5 out of 5Claire Philadelphia9 months ago

  Job well done I must say. Recommend them 100

  Reply from the business

  Hey Claire! We appreciate you taking the time to write us a positive review. We look forward to working with you in the near future!

• 5 out of 5Céline Floyd9 months ago

  Christine and the office girls made the whole process easy. Their customer service is on point! 🥳 …

  Google cut this review short. The full text is on their Google profile.

  Reply from the business

  Thank you so much for taking the time to share your experience and recognizing Christine and the entire office team. We're delighted to hear that the team made such a positive impression. We'll be sure to pass along your kind words-- feedback like this inspires our entire team to keep delivering excellent service.

Ready to explore reliable Commercial & Industrial Flat Roofing Solutions? Discover Gentech Roofing, where over 35 years of trusted expertise meets quality craftsmanship and customer-focused service. Gentech provides roofing services to The GTA & Surrounding locations. Visit our website at gentechroofing.com to connect with professionals who deliver lasting value and peace of mind. #GentechRoofing #CommercialRoofing #IndustrialRoofing #TrustedExperts #FlatRoofing #VisitOurWebsiteJun 17, 2026

• Licensed

  “…Certifications | WSIB Compliant | Fully Licensed & Insured Awards &…”

• Insured

  “…We are fully compliant with WSIB and fully insured. All Gentech workers have mandated…”

• Warranty offered

  “…Edge-To-Edge Warranty Quality is at the heart of what we do…”

• Free estimates

  “…Contact us for a Free Estimate. Have a Question? Request a Quote?…”

• Family owned

  “…Proudly Canadian, family-owned & operated for over 35 years.…”

Their site also states: states years in business.