• Ontario's Best Roof

    Ontario's Best Roof

    Weathered Metal Interlock® Slate Roof

  • Standing Seam

    Standing Seam

    Mechanical-Lock Standing Seam Metal Roof Panels

  • Solid Copper

    Solid Copper

    Available in Interlock® Slate, Cedar Shingle, Shake, Tile, and Standing Seam.

  • Mediterranean Tile

    Mediterranean Tile

  • Environmentally Friendly

    Environmentally Friendly

    Weathered Interlock® Slate Roof Shingles

  • Custom Coloured Trims

    Custom Coloured Trims

    Our roof components have custom coloured matching trims.

Interlock® Lifetime Metal Roofing Systems

Welcome to Ontario’s Best Roof™

Interlock Industries (Ont) Inc., is one of the largest installers of residential metal roofing systems in Ontario, Canada. We can help you choose the roofing system that is right for your home.

We have installed thousands of roofs across the Southwest Ontario, Niagara, Hamilton, Greater Toronto Area, York, South Eastern Ontario, and Ottawa. We’re well aware of how unrelenting the weather can be on your roof, and our product is tested and designed to endure even the most challenging of weather conditions.

Our mission is to provide our customers exceptional value by ensuring excellence in our products and services.

GuildQuality Member

Overall Rating / 50 Total Testimonials


Out of 5 Stars

Beautiful Metal Roofing Profiles

The Last Roof You Will Ever Need.

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Customer Testimonial

Dec 28, 2015 / 34 Sq. Aged Copper Interlock® Shake Roof

Retired engineer Lloyd W. was happy to share his experience of replacing his hand-split cedar shake roof, with one of our aluminum profiles, Interlock® Shake in Aged Copper. He built his own house to very high standards and was very pleased with the quality of the materials used including the fasteners and snow guards since they are made of the same high-quality metal that our Lifetime Roofing Systems are. Thank you for sharing Lloyd!

Interlock Industries (Ont) Inc.

2800 Argentia Rd #5
Mississauga, ON L5N 8L2