Leak Repair
Stop active roof leaks fast with expert leak repair roof service before water damages your interior.
Licensed & Insured Roofers
Roof Repair Services in GTA, Guelph, Mississauga, Waterloo & Kitchener
Fast, reliable residential roof repair services. Leak repair, flat roof repair, shingle and skylight repair by a licensed roof repair specialist, plus full roof installation when you need it. Same-day urgent roof repairs across the region and the GTA.
Licensed & Insured
5-Star Google Rated
Workmanship Warranty
5.0 ★
Google Rated
15+
Years in Business
100%
Licensed & Insured
Same Day
Urgent Response
What We Do
Our Roof Repair Services
Roof repair is our specialty, from a single leak to a full flat roof. When a roof is past saving, we handle complete roof installation too.
Flat Roof Repair
Reliable flat roof repair for flat and low-slope residential roofs, including membrane and seam fixes.
Shingle Repair
Shingle repair to replace damaged, lifted or missing shingles and restore your roof line.
Skylight Repair
Seal and fix leaking skylights, including trusted skylight repair in Mississauga and nearby areas.
Storm & Urgent Roof Repairs
Rapid same-day response for urgent roof repairs, emergency leaks and storm damage.
Roof Installation
When repair is not enough, we install new asphalt shingle and flat roofs built to last.
Why Grand River
Why Homeowners Choose Us
Local Repair Specialists
We focus on repairs, not just full re-roofs, so you fix the real problem for less.
Upfront, Honest Pricing
Clear quotes after inspection. No surprises and no pressure.
Fast Response
Same-day availability for urgent roof repairs and active leaks.
Licensed, Insured, Warrantied
Fully licensed and insured, with every repair backed by a workmanship warranty.
As one of the most trusted roofing repair companies in the region, we treat every roof like it is our own. Quality work, fair pricing, and a roof that holds up.
Where We Work
Roof Repair Across Guelph, Mississauga, Waterloo, Kitchener & the GTA
We provide fast residential roof repair throughout these cities, the Greater Toronto Area, and the communities around them.
Roof Repair Guelph
& surrounding areas: Rockwood, Fergus, Elora, Puslinch
Roof Repair Mississauga & the GTA
& surrounding areas: Brampton, Oakville, Etobicoke, Toronto
Roof Repair Waterloo
& surrounding areas: Cambridge, Elmira, St. Jacobs
Roofers Kitchener
& surrounding areas: Breslau, Baden, New Hamburg
Not sure if we cover your area? Call us, we likely do.
Simple & Stress-Free
How Our Repair Process Works
1
Call or Request an Estimate
Tell us what is happening with your roof. Reach us by phone or the quick form below.
2
On-Site Inspection & Quote
We inspect the roof, find the real cause, and give you an upfront, honest price.
3
Fast, Warrantied Repair
We complete the repair cleanly and back it with a workmanship warranty.
How Much Does Roof Repair Cost?
Roof repair cost depends on the size and type of the job. Minor leak and shingle repairs start low, while larger flat roof or structural repairs cost more. The only way to know for sure is a quick inspection, and your estimate is always free.
Get My Free Quote
Real Homeowners
What Our Customers Say
★★★★★
"Had a bad leak during a storm and they were out the same day. Fixed it fast and explained everything. Highly recommend."
Sarah M. . Guelph
★★★★★
"Our flat roof had been leaking for months. The repair was clean, priced fairly, and has held up perfectly."
David R. . Mississauga
★★★★★
"Skylight was leaking into the kitchen. They sealed it properly and left the area spotless. Great team."
Priya K. . Waterloo
Good to Know
Roof Repair FAQs
How fast can you respond to urgent roof repairs?
In most cases we offer same-day response for urgent roof repairs, with priority scheduling for active leaks and storm damage.
Do you repair flat roofs?
Yes. We provide flat roof repair for flat and low-slope residential roofs, including membrane and seam repairs.
How much does roof repair cost?
Roof repair cost depends on the size and type of repair. Minor leak and shingle repairs start lower, while larger flat roof or structural repairs cost more. We provide a free, upfront quote after inspection.
Do you also install new roofs?
Yes. Roof repair is our specialty, but when a roof is past saving we also handle full roof installation for asphalt shingle and flat roofs.
What areas do you serve?
We serve Guelph, Mississauga, Waterloo, Kitchener, the Greater Toronto Area and surrounding communities such as Cambridge, Brampton, Oakville, Fergus and Elora.
Are you licensed and insured?
Yes. Grand River Roofing is fully licensed and insured, and all repairs are backed by a workmanship warranty.
Get Your Free Roof Repair Estimate
Quick to fill out. We respond fast, often within a couple of hours during business hours.
No-obligation estimate. Fast response. Licensed & insured.