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A Richmond Hill roof replacement is mostly about the parts that aren't shingles — the valleys, the dormer walls, the chimney saddles. Get those right and the roof lasts. We get those right.(416) 846-3797Or send the form and we'll call you back.
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The typical Bayview Hill or Jefferson house has a roof with far more linear feet of valley and wall flashing than a subdivision house of the same footprint elsewhere. That's where the original builder saved money, and it's where the roof fails at 18 or 20 years instead of 25. Rouge Woods and Westbrook are similar with slightly simpler geometry. In Doncrest and around Mill Pond the houses are older, the decks have been through more cycles, and there's often a second layer of shingles hiding what the first one did. Oak Ridges is newer but sits on the moraine, so the replacement has to be specified for wind — heavier shingles, more nails, and rake and ridge details that hold.
The owner walks every plane of the roof and writes an itemized quote from what's there — including the valleys and flashing, which on these houses are a real line item. On the day, the old roof comes off to the deck, soft sheathing is replaced, ice-and-water membrane goes the full length of every valley and along every eave, and the dormer walls and chimney get new step and counter-flashing rather than a bead of caulk over the old. Then architectural shingles with a high-wind nailing pattern, ridge vent, and a check that each dormer attic is actually vented to the main space.
Replace when granules are washing into the eavestroughs, when you've had a leak at a valley or a dormer more than once, when shingles are lifting at the ridges after wind, or when the roof is past 20 years on a house with this much flashing. Patching a valley on an old roof is a repair to the weakest point of a system that's finished.
Valleys carry the water from two roof planes, and on a large Richmond Hill roof that's a lot of water in a narrow channel. Builders often used a thin metal valley with no membrane under it. We replace valleys with full ice-and-water membrane and properly lapped metal, which is why they stop leaking.
Yes — each dormer has two side walls and a front that need step flashing into the main roof, and a small attic that needs to vent. Most of the dormer leaks we see are from flashing that was face-caulked instead of stepped. We do them properly.
Bayview Hill and Jefferson houses are typically two to three days; Oak Ridges homes with steep, wind-exposed roofs can take a little longer because of the extra fastening and safety setup. You get a start date and a realistic window.
See all our roofing services in Richmond Hill or read more about New Roof Installation & Repairs.
Tell us what's happening and the owner will come out for a free itemized quote.
