Do You Have A Commercial Roofing Project We Can Help With?
Building Inspiring Spaces

Our team winning the Chairman Award in 2017.
Alternative Roofing Systems, Inc. is a leading certified installer of Duro-Last roofing in Washington. We have done large-scale installations in the Northwest for many companies you know and buildings you’ve likely driven by.
We specialize in Duro-Last Single-Ply PVC Roof Membranes for Commercial, flat, low slope and multi-family complexes.
We are a leading Certified Duro-Last Installer in the PNW and pride ourselves on our average 99% quality inspection rating. Alternative Roofing Systems has served the greater Seattle area for more than 30 years, installing more than 7 million square feet. We truly believe a Duro-Last roof system offers our customers the highest quality and longest life. You can trust your flat, low slope, commercial or multi-family complex roof is in the right hands.
Our mission is simple. “Treat our employees, customers and suppliers as we would family; whilst installing the world’s greatest roof, with the world’s greatest team.”
The areas we service are: Olympia, Tacoma, Everett, Snohomish, Mount Vernon, Mukilteo, Arlington, Marysville, Monroe, Whidbey Island, Woodinville, Lynnwood, Edmonds, Shoreline, Kirkland, Bellevue, Kent, Auburn, Renton, Redmond, Federal Way, Issaquah, Northbend, Seattle, Bellevue, Bellingham, Lynden, Anacortes, and all surrounding islands. Look for our advertisements at the Allenmore, Nile Shrine, and Snohomish golf courses!
Who We Service
Airport
Bank
Bowling Collection
Churches
Community Centers
Condos & Apartments
Fire Stations
Gym
Hospitals & Medical Centers
Industrial
Marinas
Office Buildings
Restuarants
Retirement & Nursing Homes
Nursing Homes
Schools & Colleges
Stores & Retail
Theatre
Warehouses
Have Questions? Contact Us!
Looking for help with a commercial roofing project? As a leading certified Duro-Last roof installer in the Seattle area, we are qualified to meet your commercial, flat, and low slope roofing needs. Contact us today!