Ontario roof replacement

What replacing a roof with us involves

One visit first, at your house or on Zoom to start. We measure the roof, look at the deck and framing where we can, go through profiles and colours with you, and give you a fixed price in writing. Anything that needs attention underneath goes into that written quote, not into a change order later.

On install, the Interlock® aluminum system goes on: panels that lock to each other on all four sides with the fasteners concealed, so there is no exposed screw head or loose edge for wind, driven snow or water to work on.

Tear-off or roof-over?

Cedar shingles and shakes, concrete tile and natural slate always come off. A single layer of asphalt shingles can sometimes be roofed over, but only if our inspection finds the roof suitable: no rot, no soft decking, nothing trapped underneath that should come out. If it isn't suitable, the tear-off is in the written price from the start.

Replacing asphalt, cedar or tile

Most of our work replaces asphalt shingles. Interlock's Slate, Cedar Shingle, Shake, Mediterranean Tile and Standing Seam profiles give you the look you want at roughly 2 to 3.5 kg per square metre, a fraction of concrete tile. Every profile needs a minimum 3/12 roof slope.

We install one roofing system. We don't install asphalt shingles, so if you're comparing us with an asphalt re-roof, you're comparing a roof you'll replace again with one that shouldn't need it.

Built for an Ontario winter

Snow load, freeze-thaw and lake-effect snow are what wear a roof out here. Aluminum absorbs no water, so there is nothing for freeze-thaw to split, and the panels shed snow rather than hold it. Where snow sliding off would land on an entry, a deck or a walkway, we plan snow guards at the estimate.

Ice dams come from heat escaping into the attic and from ventilation, not from the roof covering, and no roof prevents them on its own. We look at your attic ventilation and insulation with you at the visit.

The warranty, in plain language

The manufacturer's Guardian Lifetime Limited Material Warranty covers material and finish for as long as the original purchaser owns the home, and transfers once. Workmanship is excluded from that warranty; our installation is covered separately by our own 10-year labour warranty. Ice damming is a stated exclusion of the material warranty. Read the full terms before you sign.

Wind resistance is warranted to 193 km/h (120 mph) when installed to manufacturer specification.