Karam RoofingSpotted a water stain spreading across the ceiling, or a drip during the last storm? For most Scarborough homeowners the first question is simple: "what's this going to cost me?" Every leak is different, but there are clear, typical 2026 ranges for Scarborough and the east GTA — and a handful of things that push the price up or down. Here's the honest picture, with no sales pressure. If it's actively leaking right now, see our emergency roof leak repair page first, then come back to this.
Typical roof leak repair costs in Scarborough
These are realistic ballpark ranges for common residential roof leak repairs in Scarborough and the surrounding east GTA. Your actual price depends on the factors below — always get a free inspection and a written quote before any work starts.
| Type of repair | Typical Scarborough range |
|---|---|
| Minor fix — a few shingles, small flashing, resealing a vent | $150 – $600 |
| Moderate — chimney or skylight flashing, valley, vent boots | $600 – $1,500 |
| Larger — leak plus soaked plywood/underlayment, bigger section | $1,500 – $4,000+ |
| Emergency tarping / temporary weatherproofing | $200 – $700 |
These are market estimates to set expectations — not a quote. A quick photo on WhatsApp lets us give you a much tighter number for your specific Scarborough roof.
What makes a Scarborough leak repair cost more (or less)
A few things are specific to Scarborough's housing and weather, and they move the price:
- The age of the home. Much of Scarborough — the post-war bungalows of Birch Cliff, Cliffside and Scarborough Village, and the split-levels through Wexford and Bendale — is 40-plus years old. Older shingles and brittle flashing are more prone to leaking, and sometimes the fix uncovers tired materials nearby.
- Flat and low-slope additions. Lots of Scarborough homes have a flat-roof rear addition or garage that ponds water. Flat-roof leaks (seams, drains, membrane) are a different repair than shingles — see our flat roof repair guide.
- Ice dams. Cold Scarborough winters and poor attic ventilation cause ice to back up under the shingles, so leaks often show up in late winter and can involve more than one spot.
- Where the leak actually starts. Flashing, valleys, chimneys and skylights are the usual culprits and cost more than a simple shingle swap — and the stain on your ceiling is rarely directly under the real source.
- How long it's been leaking. A fresh leak is cheap. One that's already soaked the plywood, insulation or drywall costs far more — which is exactly why acting fast saves money.
- Access & roof type. Steep or two-storey Scarborough homes need more safety setup; asphalt shingle is the most affordable to repair, while metal and slate cost more.
Repair or replace? What it means for older Scarborough roofs
Because so many Scarborough roofs are 20–40 years old, this question comes up a lot. A simple rule: if the roof is generally in good shape and the leak is isolated, a targeted repair is almost always the right call — a small fraction of a full replacement. If the roof is near the end of its life and leaking in several spots, repeated repairs become false economy and a re-roof is the smarter money.
A good roofer will tell you honestly which camp you're in — even when the answer is "you don't need a new roof yet." That's how we work. If you want to think it through, our repair-or-replace guide walks through it.
How to get an honest Scarborough quote (and avoid overpaying)
- Get a free inspection and a written quote before agreeing to anything — not a number over the phone.
- Ask what's actually causing the leak, not just where the stain is.
- Make sure the roofer is licensed, insured and WSIB-covered (we are).
- Act quickly — a $300 repair today can become a $3,000 job if the water keeps coming.
We give free roof inspections and honest written quotes right across Scarborough — from West Hill and Guildwood to Agincourt, Malvern and Milliken. See everything we do locally on our Scarborough roofing page.
Got a leak? Get a fast, honest answer.
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