Jenison High School, commercial roof, roof, Great Lakes Systems, roofing, commercial, industrial

We're different. We ask. We deliver.

I have had the opportunity to work with Great Lakes Systems on many projects ... I am very impressed with their company from the workmanship they apply in the field to the company leadership at the very top. GLS combines expertise with high quality to make them a preferred contractor. I have no reservations recommending Great Lakes Systems as an excellent contractor for any project.

William W. Culhane
President
William W. Culhane Consulting, LLC

Your Complete Source for Single-Ply Commercial Roofs

Since its inception in 1969, Great Lakes Systems, Inc. has flourished in the highly-competitive commercial, industrial and institutional roofing field and enjoys industry-wide recognition for the quality of its installation repair and maintenance work as well as its client relationships.

Today, the Great Lakes‘ team adheres steadfastly to the work ethic, disciplines and principles of its founder, Ray Clausen, while continuing to innovate and improve its roof delivery methods thus improving the customer experience.

We exist to keep our customers dry. If you need a new single-ply commercial, industrial or institutional roof—whether you’re a building owner, architect, general contractor or facilities manager—you’re in search of a roofing contractor you can trust. You’ve come to the right place.