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The flat roof over a Mississauga garage is almost always original to the house, and almost always the first thing to leak. We replace those, repair the ones that can be saved, and handle the commercial roofs too.(416) 846-3797Or send the form and we'll call you back.
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Walk any street in Erin Mills, Meadowvale or Malton and every second house has a flat roof over the attached garage — built in the 70s or 80s with a basic membrane that nobody has looked at since. It leaks into the garage, then into the wall between the garage and the family room. Rear additions and sunrooms added in the 80s and 90s put a second flat section on many of these houses, usually tied badly into the main roof. Mississauga also has one of the largest concentrations of low-slope commercial roof in the GTA — the industrial units in Malton and around the airport, the warehouses along Dixie, the plazas along Dundas and Hurontario — where a blocked drain after a lake storm or a failed seam at a rooftop unit means water in someone's ceiling.
We look at the whole flat roof, not just where the stain is: where it drains, whether it ponds, how the edges and the joint with the main roof were done. A sound membrane with one failed seam or curb gets a bonded repair that becomes part of the roof. An original 40-year-old garage roof gets replaced — old membrane off, deck inspected and repaired, tapered insulation to create fall where the builder gave it none, new membrane, new edge metal, and the transition to the shingled roof flashed properly. On commercial buildings we work around your hours and your tenants.
Repair when the membrane is holding everywhere except one clear spot. Replace when water sits on it for days after rain, when the surface has cracked or alligatored, when it's been patched more than once, or when it's the original garage roof on a house built before 1990 — that one is simply done.
Yes — industrial units in Malton and near the airport, warehouses along Dixie, plazas on Dundas and Hurontario. We inspect the drains, seams and rooftop curbs and quote the repair or replacement in writing.
Yes. It's a separate roof and a modest job. Many Mississauga customers do the garage first because it's the one that's leaking, and the main roof a year or two later.
Because it was built flat, not low-slope, and there's no fall toward the drain. On a replacement we add tapered insulation so the water actually goes somewhere. That single change is most of why the new roof lasts.
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