Interlock Metal Roofing - Seattle

Interlock Metal Roofing (PNW) Inc. is the certified and exclusive installer of the Interlock® Lifetime Limited Roofing System in Washington, Oregon and Idaho. In business since 1997, we work from three Washington offices: Seattle, Bellingham and Stanwood. Each roof carries the manufacturer's Guardian Lifetime Limited Material Warranty. The roofing system is made in North America by Interlock Roofing, a separate company.