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We offer a wide range of flat roofing services including repair, installation, free roof inspections, roof maintenance, emergency leak repair for industrial and commercial buildings.

Flat roofs are horizontal with very little slope when comparing to a roof on a residential home. Flats are commonly found on commercial & industrial buildings.

The most common causes of roof leaks can be:

1. Old/worn out (time, weathering, mechanical abrasion, foot traffic, air pollution)
2. Mechanically damaged (wind, falling objects such as tree branches and hail)
3. Patched (weak areas from previous repairs)
4. Multiple layers (new membranes added over old membranes)
5. Blisters (air/water trapped between roof sheathing and membrane or in the asphalt)
6. Alligatoring (asphalt brittles due to sun damage)
7. Gravel erosion (wind and water running across a roof)
8. Ridging and fishmouths (installation problems related to asphalt, moisture, structure, expansion or slipping of felts)
9. Membrane movement/splitting (membrane shrinkage through cold weather cycles)
10. Ponding/Vegetation (poor design/no slopes, no drains, blockage of drains or an inadequate number of drains)
11. Debris or storage on the roof (construction activity and material storage)
12. Exposed felts (inadequate top pour of asphalt, felts not laid flat, failure to adhere felt at edge.

Yes, we offer emergency roofing services for urgent repairs and leaks. If you have a leak, please call us at 905-270-6799 or send our team an email to info@gentechroofing.com

The cost of roof repair varies depending on the extent of the damage and the type of roofing material that is installed. Contact us for a free inspection and quote.

The safety of our customers and our employees is of the highest importance. We are fully compliant with the WSIB and are good standing. In addition to that, our employees are up to date with all mandated M.O.L training, which includes the Working at Heights and Worker Health and Safety Awareness in 4 steps as well as our own in house training, which includes; Orientation, PPE, H & S policies, WHIMIS, Propane Safety, Fire Extinguisher, Basic first Aid, CPR for supervisors and lead hands, fall protection, Emergency response, and many other topics. This ensures that every Gentech Roofing employee carries out their duties professionally, respectfully, and most importantly, safely. 

Gentech Roofing offers 5, 10, 15, and 20 year Edge-to-Edge warranties. For more detailed information, please contact us.