We plan well. We finish well.

We plan well. We finish well.

Considering the critical nature of the work, your roofing crew did an outstanding job (GVSU Mackinaw Hall).

Tom Norris
Senior Project Superintendent
The Christman Co.

We’re Seasoned Experts in Single-Ply Roofs

Great Lakes Systems has installed over sixty-million square feet of single-ply commercial, industrial and institutional roofs since 1976. Whether you require expertise in EPDM, TPO or PVC membranes, we’ve got you covered. What’s more, GLS has installed roofs on over 25 LEED certified projects and performed over 12 vegetative roof installations. We limit our partnerships to only the finest manufacturers to insure high quality single-source responsibility. In addition, we install commercial, industrial and institutional roofs that are Factory Mutual approved, offer high-wind warranties and your choice of 10, 15, 20 or even 30-year warranties. Please contact us for full warranty details. We’re honored to be recognized as a Firestone Master Contractor for over 19 years. We’re also a Carlisle Hall of Fame Contractor/ESP member with over 1000 ‘Perfect 10’ installations. Which means you can select Great Lakes Systems with confidence.

Bottom Line: We’ll Keep You Dry

Keeping you dry is not only our objective, it’s also our reputation. This requires us to have safe, well-trained team members. To that end, we employ a full-time Safety Director and have an extensive training program. In fact, we have the state’s only U.S. Department of Labor Bureau of Apprentice Training certified program. Our single-ply commercial, industrial and institutional roofing customers have long known, trusted and recommended us for our competitive pricing, professionalism and detailed planning. We strive to eliminate surprises and disruptions as well as overcome construction obstacles. Rest assured, we’ll do everything within our means to keep you dry … and productive.


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