Roof Repair in Toronto & the GTA

Most leaks we trace on GTA homes don't come from the open field of shingles. They come from the places where the roof is interrupted: anywhere something passes through it or two surfaces meet. These details take the most abuse from wind, ice and temperature swings, and they're where sealants and flashing wear out first.

Water is persistent. Once it gets past a shingle or flashing, it can run along the top of the roof deck, follow a rafter or truss, and travel several feet before it finally drips onto insulation and soaks through the ceiling. That's why patching the roof directly above a ceiling stain so often fails. The real entry point may be higher up the slope or on a completely different detail.

A proper diagnosis looks at the roof from both sides. On the outside, we check every penetration, flashing and seam in the area. In the attic, we look for water trails, stained sheathing, rusted nails, damp insulation and daylight around penetrations. Matching what we find inside to what we see outside is how we fix the leak the first time.

A repair makes sense when the roof is in reasonable overall condition and the problem is isolated: a damaged vent boot, a section of wind-lifted shingles, or failed chimney flashing. Fixing these details can buy many more years of service for a fraction of the cost of a new roof.

Replacement starts to make more sense when the problems are widespread rather than local. If shingles are curling or cracking across entire slopes, you're finding heavy granule loss in your eavestroughs, the deck feels soft underfoot, or you've had several repairs in a short period, money spent on patching may be better put toward a new roof. Age matters too: asphalt shingle roofs in Ontario commonly last around 15–25 years depending on the product, ventilation and exposure.

We'll always give you an honest recommendation. If a repair will genuinely extend your roof's life, that's what we'll suggest.

If water is coming in, focus on protecting the interior and staying safe. Catch drips with buckets, move valuables, and take photos for your records and insurance. Don't climb onto a wet, icy or steep roof. Falls from roofs are among the most serious home injuries. Call for a professional assessment as soon as possible; a temporary weatherproofing measure can often be put in place quickly to stop further damage until a permanent repair is completed.

Most roof repairs can be avoided, or at least caught while they're small, with a little routine attention. A few simple habits will extend the life of almost any roof in the GTA.