Since 1988, Interstate has established itself as one of the largest and most trusted exterior improvement companies in the Northwest. In an industry that focuses on customer service and quality, Interstate exemplifies these attributes in everything that they do. Obvious throughout the company is the highest standard of integrity, teamwork, quality and class. Committed to professionalism and quality of work, Interstate has the knowledge and experience to handle your construction needs.Serving Greater Portland, OR Vancouver, WA & Surrounding Areas Welcome to Interstate Roofing, Siding, Windows, and Gutters!Since 1988, Interstate has established itself as one of the largest and most trusted exterior improvement companies in the Northwest. In an industry that focuses on customer service and quality, Interstate exemplifies these attributes in everything that they do. Obvious throughout the company is the highest standard of integrity, teamwork, quality and class. Committed to professionalism and quality of work, Interstate has the knowledge and experience to handle your construction needs.Adobe Flash Player is needed to watch video. Download the Flash Player Plugin.For over 22 years, Interstate has been serving the greater Portland and SW Washington area. Over the years, our experience in exterior improvements has created thousands of satisfied customers!!! From small repairs to multi-million dollar project do it all! If you have a project that involves the installation of commercial or residential roofing, siding, windows, insulation, carpentry and/or continuous gutters give us a call! Wed be happy to give you a free estimate!Ask us how to go green! We can recycle your roof, add insulation, and even create energy with solar power!