Custom Seattle Metal Roofing Systems
Trusted for decades, Interlock has installed thousands of eco-friendly and energy efficient lifetime roofs in all climate conditions and is especially suited to our rugged weather in the Pacific Northwest
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Our lifetime roofing systems are professionally designed to provide an elegant and environmentally safe alternative to common Slate, Shingle, Tile, or Cedar roofing materials.
It’s one of the most tested and approved roofing systems available.
You're protected for life with our exclusive Non-ProRated, 50 Year Transferable Warranty.
Best of all, you’ll never re-roof again. NEVER.



















industrial mess as well as some of my own winter mess. My experience with Interlock Industries from the initial phone call, to the sales representative as well as the installers was like working with old friends. I would recommend Interlock Industries and their products to anyone without hesitation. I do not make referrals often, because I feel my word of recommendation is a sacred trust. I rate my experience A+ with Interlock. I know I am going to enjoy my new roof for a long time.
First, the black Interlock shingles look so appropriate on this house. In certain lights it even appears to look like slate. Many neighbors and friends have commented on how very attractive it looks,
It was a pleasure to have them around our home. The quality, craftsmanship and lifetime warranty of this roof far outweighs the increased costs over other roof systems. However, other roof systems don't come with lifetime warranties and many only last for 8 to 10 years. We may have paid a little more initially, but how wonderful it is to know we will never have to re-roof our home again.