Anytime Call

(289) 312-2100

Drop Email Us

[email protected]

Office Location

1077 Boundary Rd #207A, Oshawa ON L1J 8P8

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Offers Both Roof Leak and Roof Repair Services

Durable Roofing. Local Experts. From Clarington to Toronto.

Reliable Roofing Repairs & Replacements That Stand Up to Ontario Weather

Call Now: (289) 312-2100

24/7 Emergency Support

Leaky roof in Toronto? Storm just hit Bowmanville? Our emergency team is ready day or night to secure your home or business fast.

Full-Service Roof Plumbing

Gutters, downspouts, flashing — we install it all to protect your foundation and keep water flowing where it should.

Only Quality Materials

We don’t cut corners. Your roof gets the best materials on the market — backed by warranties and built to last through Canadian winters.

Licensed & Insured Experts

Based in Oshawa, we serve our neighbours across the GTA with pride, integrity, and expert workmanship on every job.

5 Signs It’s Time to Call a Roofer in Durham Region

Most people wait too long to call a roofer — and the damage gets worse. Here’s how to spot early warning signs before they turn into expensive problems:

Water stains on ceilings or walls
Shingles in your yard after windstorms
Your roof looks “wavy” or uneven
Moss or algae growth on your shingles
Roof is 15+ years old and hasn’t been inspected recently

We offer free inspections across Clarington, Oshawa, and Toronto — so if you’re unsure, we’ll take a look and give you straight advice.

What Roofing Material is Best for Your Area?

Durham Region weather is no joke — we get freezing temps, heavy snow, rain, and heat waves. Your roof needs to handle it all.

Architectural shingles: Affordable and wind-resistant
Metal roofing: Ultra-durable and eco-friendly
Flat roofs (TPO/EPDM): Great for commercial spaces and energy savings

We walk you through every option and help you choose the right one for your home or business.

Why “Cheap” Roofers Cost You More

We’ve been called in too many times to fix bad jobs. Fly-by-night roofing companies pop up after storms, offer cash jobs, then vanish.

We’re different. We’re insured, certified, and we’ll be here next year when you need us.

With Summit Roofing Co., you get:

Written estimates with no hidden fees
Photo documentation before & after
Long-term warranties
Local accountability

How to Tell If Your Roof Is Failing — And What to Do About It

Did you know that 75% of roof replacements are done prematurely? Yep — homeowners and business owners often replace entire roofs when a skilled repair would’ve done the trick. That’s why at Summit Roofing Co., our first step is always a comprehensive inspection. We want to give you the full picture — not just a pricey quote.

Here’s what to look for before calling a pro:

Shingle Curling or Buckling? That’s a sign of aging materials or poor ventilation.
Dark Streaks? Could be algae or water damage hiding under the surface.
Mysterious Leaks After Light Rain? That points to flashing failure or poor sealing.
Sagging Roof Lines? That’s structural — don’t wait. Call us immediately.

Here’s the truth: A good roofing company doesn’t sell you what you don’t need. We’ve built our name on transparency. If a quick fix will extend your roof life by 5 years, we’ll tell you — and back it up in writing.

Commercial Roof Maintenance — The Smartest Investment

If you own a business, your roof is a capital asset. A neglected roof can result in:

Equipment damage
Interior leaks and mold
Energy inefficiency (heating/cooling loss)
Emergency closures

A regular roof maintenance plan costs far less than a full replacement and can double your roof’s lifespan. At Summit, we offer tailored commercial maintenance packages that include bi-annual inspections, debris removal, sealant touch-ups, and detailed reports.

📞 Want to learn more about our commercial plans? Call (289) 312-2100 today.

About summit roofing Co.

Your Neighbourhood Roofers With Big Experience

We’re not a big franchise. We’re a proudly local roofing company based in Oshawa, serving homeowners and businesses across Clarington, Bowmanville, Courtice, Whitby, Ajax, Pickering, Scarborough, and Toronto. For over 25 years, our team has delivered top-tier roofing solutions that are fast, reliable, and built for life in Ontario.

Whether it’s a one-time repair or a full roof replacement, we show up on time, clean up after ourselves, and leave you with a roof you can feel good about.

📍 Oshawa-based, locally trusted
📞 Always free roof inspections
🔒 Fully licensed and insured
🛠️ Fair pricing. No surprises.

➡️ Get peace of mind and a proper quote. Call (289) 312-2100

Ronald Richards

Founder CEO

Why Homeowners & Businesses Trust Us

✅ Based in Durham Region — not some faraway head office
✅ 25+ years of hands-on experience
✅ Roofs that last — backed by workmanship warranties
✅ Fast, transparent service with real communication
✅ 100% satisfaction guaranteed

What Makes Summit Roofing Co. Different?

We don’t subcontract — our core team handles everything.
We give you photo documentation of the job — before and after.
We offer no-pressure quotes, meaning we educate first and only move forward if you’re confident.

Roofing Trends: What’s New in 2026?

From solar-ready roofing systems to cool roofs that reflect UV rays and reduce cooling costs — modern roofing is about more than just staying dry. Ask us how a smarter roof can reduce energy bills and increase your property value.

OUR SERVICES

High-quality Roofing Services

Commercial Roofing

We handle flat roof installs and repairs for plazas, warehouses, and industrial units from Toronto to Clarington.

Roofing Repair

One shingle or one section — we diagnose the problem fast and fix it right, often same-day.

Flat & Single-Ply Roofing

EPDM, TPO, and modified bitumen systems designed for performance and longevity.

Residential Roofing

From Oshawa bungalows to Toronto semis, we install long-lasting roofs with premium shingles, metal, and cedar shake options.

Want a No-Pressure Estimate?

We don’t believe in upsells. We believe in solutions.

Get My Free Roofing Quote

Portfolio

Our Work Speaks for Itself

We’re proud of the roofs we’ve installed in Oshawa, Pickering, Toronto & beyond.
Take a look at our recent projects across Durham Region and the GTA.

Our Experience

Commercial & Residential Roofing Done Right

You don’t want the cheapest roofer. You want the best value — and that’s what we deliver. Our team works efficiently, follows code, and protects your property like it’s our own.