Ottawa’s #1 Full-Service Roofing Company

Top Roofing Products, Quality Install and 100% Customer Satisfaction


Ottawa’s #1 Full-Service Roofing Company

Top Roofing Products, Quality Install and 100% Customer Satisfaction

Flat Roof Superstars

Your Flat Roof Specialists with over 10 years of experience

Fully Insured

Full insurance covering hot tar and torch liabilities

Trained & Certified Roofers

Trust our experienced, professional staff for a job well done

All Types of Roofing

Flat roof, shingles, tar & gravel, and more

Dedication to roofing quality

The quality of our workmanship is our top priority

BP Certified

BP certified roofers for top-tier roofing jobs

Our Roofing Services

Flat Roofing
Tar Gravel
Eavestrough Installation
Roof Replacement
Repairing or Replacing Roof Finishes
Roof Installations
Light Weight Tile
T.P.O/ P.V.C Single Ply Membranes
Roofing Upgrades
Hail Claims
Carlisle Rubber Roofing E.P.D.M

You’ve Never Seen

Roofing Projects Like Ours


For over 10 years, CLS Roofing has been focused on the flat-roof industry while maintaining excellence in other contracting services. Consider us your highly-skilled flat-roof experts of Ottawa. Using top-quality brands, our certified roofing team can install a variety of flat roofing types for a service that is guaranteed to leave you satisfied.

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Are you looking for a reliable, cost-effective roofing solution? Our selection of 25 and 40-year shingles will last decades and are relatively easy to repair. We have over 10 years of experience installing shingles in the Ottawa area.

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Eavestrough Installation

Protect your home from water damage with our professional eavestrough installation services. We’ve got you covered when it comes to everything related to eavestroughs and water drainage from your home’s roof, including gutters, downspouts, flashings, and accessories.

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Tar and gravel roofs are affordable and durable solutions for a wide range of flat-roofed buildings. You can trust our experienced team of skilled professionals at CLS Roofing to provide a satisfaction guaranteed service.

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Soffit /

Soffit fits underneath the roof overhang, and fascia covers the outer face of the roof overhang. Looking for reliable, quality soffit/facia installation in Ottawa? You’ve come to the right place. We’ve been installing soffit/facia for over 10 years for our loyal customers.

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Regular, periodic maintenance can help prolong the life of your roof, but sometimes, a total replacement is needed. Let CLS inspect your home or business and provide a quote for a total roof replacement.

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