Leak Repair
We trace leaks back to the real source and seal them properly, before water reaches your drywall, insulation, or framing.
Licensed & Insured Roofers
Roof & Chimney Repair and Installation Done Right
Ontario Roof Masters is your one-call team for residential roof repair, full roof installation, chimney repair, and chimney rebuilds. Licensed, insured, and backed by a workmanship warranty, with same-day response for active leaks.
Licensed & Insured
5-Star Google Rated
Workmanship Warranty
5.0 ★
Google Rated
15+
Years in Business
100%
Licensed & Insured
Same Day
Urgent Response
Newly installed asphalt shingle roof on a residential home
Roofing Services
Expert Roof Repair & Installation
Your roof is the single most important system protecting your home. Whether you have an active leak that needs to be stopped today or a roof at the end of its life that needs a full replacement, our crew handles the job properly the first time.
We specialize in residential roofing, from small repairs to complete tear-offs and installations. We use quality materials, follow manufacturer specifications, and protect your property like it is our own. The result is a roof that looks great, performs reliably, and stands up to Canadian weather year after year.
Every job starts with an honest on-site inspection, because the right fix depends on what is actually happening up there. We will tell you straight whether a targeted repair will do the job, or whether a full installation is the better long-term investment.
- Asphalt shingle, flat and low-slope roofs
- Full tear-off and re-roof, no shortcuts
- Repairs, leak diagnosis, storm damage
- Manufacturer warranty on materials
Roofing
What We Do on Your Roof
From a fast repair to a complete new roof, we cover every kind of residential roofing job.
Shingle Repair & Replacement
We replace lifted, cracked, or missing shingles and blend new shingles into your existing roof line.
Flat Roof Repair
Membrane, seam, and ponding fixes for flat and low-slope residential roofs, including modified bitumen and EPDM.
Full Roof Installation
Complete tear-off and re-roof using quality underlayment, ice and water shield, and manufacturer-approved shingles.
Storm & Emergency Repairs
Rapid response for active leaks, wind damage, and storm-related roof failures, with same-day availability in most cases.
Skylight, Vent & Flashing
We seal and replace skylights, plumbing vents, and roof flashing, the spots where most leaks actually start.
Brick Chimney Rebuilding
Chimney Tuckpointing & Repair
Chimney Services
Trusted Chimney Repair & Installation
The chimney is where the roof and brickwork meet, which makes it one of the most common leak points on a home. A small problem at the top of a chimney can quickly turn into water in your attic, your insulation, and eventually your ceiling.
Our masonry team repairs and rebuilds chimneys from the roof line up. That means tuckpointing crumbling mortar, replacing damaged bricks, rebuilding the crown, fixing flashing, and installing chimney caps. When a chimney is too far gone to save, we tear it down and rebuild it cleanly so it matches your home and lasts for decades.
Because we handle both roofing and masonry under one crew, the chimney-to-roof connection is sealed properly, and you do not get stuck between two trades blaming each other for a leak.
- Chimney rebuilds above the roof line
- Tuckpointing & brick replacement
- Crown repair and flashing reseal
- Chimney caps to keep water and animals out
Chimney
What We Do on Your Chimney
From a small repointing job to a complete chimney rebuild, here is what our masonry crew handles.
Tuckpointing & Repointing
We grind out failing mortar joints and replace them with fresh, properly mixed mortar to stop water entry and strengthen the brick.
Chimney Rebuilds
We rebuild the chimney above the roof line with matching brick and clean mortar lines, restoring both function and curb appeal.
Crown Repair & Caps
Cracked crowns and missing caps are a top cause of chimney leaks. We rebuild crowns properly and install caps to seal the top.
Flashing Repair
Most chimney leaks are actually flashing failures. We strip, reseal, and replace flashing so the chimney-to-roof joint stays watertight.
Brick Replacement
Cracked, spalling or missing bricks get cut out and replaced with a careful colour and texture match.
New Chimney Installation
When a chimney is past saving, we tear it down and build a new one cleanly, matching your home's brick and rooflines.
Why Ontario Roof Masters
Why Homeowners Choose Us
Roof & Chimney Under One Crew
The two systems meet at the most common leak point on your home. One team handling both means one accountability.
Honest Recommendations
If a repair will do the job, we say so. We do not push installs that you do not need.
Upfront, Written Pricing
You see the price before we start, and you stay in control of the scope and the budget.
Licensed, Insured, Warrantied
Fully licensed and insured, with every repair and installation backed by a workmanship warranty.
Same-Day Urgent Response
For active leaks and storm damage, we move fast so the inside of your home stays dry.
Clean Jobsites
We protect your landscaping, magnet-sweep for nails, and leave the site cleaner than we found it.
Recent Work
See the Difference
A few recent roof and chimney projects from the Ontario Roof Masters team.
New asphalt roof install
Rebuilt chimney
Flat roof repair
Tuckpointing before / after
Where We Work
Roof & Chimney Services Across the GTA
We serve homeowners across Toronto, Mississauga, Brampton, Hamilton, and the surrounding communities.
Toronto
Mississauga
Brampton
Hamilton
Oakville
Vaughan
Markham
Surrounding GTA
Not sure if we cover your area? Call us, we likely do.
Simple & Stress-Free
How Our Process Works
1
Free On-Site Inspection
We come out, get on the roof, and look at the actual condition of your shingles, flashing, and chimney.
2
Honest, Written Quote
You get a clear, upfront price with what is being done and why. No pressure, no surprises.
3
Quality Work, Warrantied
Our crew completes the job cleanly, protects your property, and backs the work with a workmanship warranty.
Real Homeowners
What Our Customers Say
★★★★★
"Had a leak around the chimney that two other roofers tried to patch. Ontario Roof Masters actually fixed the flashing properly. No more leak."
Sarah M. . Toronto
★★★★★
"Full roof replacement on our home. Fair price, clean install, finished on schedule. Couldn't ask for more."
David R. . Mississauga
★★★★★
"They rebuilt the top of our chimney and replaced the cap. Brick match is perfect and the work looks great."
Priya K. . Brampton
Good to Know
Roof & Chimney FAQs
Do you handle both roof and chimney work?
Yes. Ontario Roof Masters specializes in both roof repair and installation and chimney repair and installation. Both are core services, and because the chimney and roof meet at a critical leak point, having one crew handle both means problems get solved completely.
How do I know if I need a roof repair or a full replacement?
A roof under fifteen years old with localized damage is almost always a repair. Widespread granule loss, multiple leaks, sagging, or curling shingles across the whole roof usually means a full installation is the better investment. We give you an honest recommendation after an on-site inspection.
What does chimney repair usually include?
Chimney repair can include tuckpointing crumbling mortar, replacing damaged bricks, rebuilding the chimney crown, repairing flashing where the chimney meets the roof, and installing a chimney cap. We diagnose the real cause so the repair lasts.
How fast can you respond to an active leak?
We offer same-day response for active leaks and storm damage in most cases, with priority scheduling so we can stop the water before it causes interior damage.
Are you licensed and insured?
Yes. Ontario Roof Masters is fully licensed and insured, and every repair and installation is backed by a workmanship warranty.
Do you offer free quotes?
Yes. All estimates are free, on-site, and no-obligation. We will give you an upfront, written price before any work begins.
Get Your Free Roof or Chimney Estimate
Tell us what is happening and we will be in touch fast, often within a couple of hours during business hours.
No-obligation estimate. Fast response. Licensed & insured.