Roofing Services in Montreal

Walk down any street on the Plateau and look up. You will see flat roofs on every duplex and triplex, most of them covered with elastomeric membrane or modified bitumen. Head over to NDG or Ahuntsic and the picture changes completely. Pitched shingle roofs on bungalows and cottages, many of them 40 or 50 years old. Montreal roofing is not one thing. It depends entirely on which borough you are in. The flat roofs in Rosemont, Villeray, and Parc-Extension are workhorses. They take the full brunt of Montreal winters, with snow sitting on them for months. Drainage is the number one issue we deal with on these roofs. If water pools instead of flowing to the drains, the membrane breaks down faster than it should. We check every drain path and correct any low spots before installing new membrane. And we see a lot of ponding on roofs near Saint-Laurent boulevard and along rue Saint-Denis where the buildings are packed tight and original drainage was sometimes an afterthought. Over in Verdun and LaSalle, you get a mix. Some blocks are all flat-roof walk-ups, then a few streets over you hit single-family homes with steep shingle roofs. Same thing in Anjou and Saint-Leonard. The bungalows there were mostly built in the 1960s and 1970s, and plenty of them are on their third set of shingles. When we strip one of these roofs down to the deck, we often find ventilation problems that have been causing ice dams for years. Fixing the ventilation is just as important as putting on new shingles. Montreal gets temperature swings of over 60 degrees across the year. That is brutal on roofing materials. Summer heat softens asphalt, winter cold makes it brittle. Wind-driven rain in October finds every tiny gap in your flashing. A roof installed to standards that work fine in Ontario or the Maritimes can fail early here because the conditions are harsher. We work across every borough on the island. Flat roof membrane replacement in the Plateau, emergency leak repair after a January ice storm in Verdun, full shingle tear-off and replacement in Riviere-des-Prairies. We also handle multi-unit buildings for property managers who need several roofs done on a schedule. Every project starts with an inspection and a detailed estimate delivered by phone or video, so you know exactly what you are paying for before we start.