Our History is a Reflection of Our Values

Great Lakes Systems has thrived since its inception over four decades ago. Each member of the organization demonstrates a level of dedication which management feels is unmatched by industry peers.

When you choose Great Lakes Systems, you’ve chosen a professional team member with a rock-solid base of knowledge, experience and integrity. From the firm foundation laid by its founders to the innovation and introduction of web-based technology incorporated by the current ownership, you can rest easy knowing GLS will listen to your needs—and deliver.

To date, we’ve applied over seventy-million square-feet of single-ply roofing including projects ranging from just a few squares to major industrial plants of nearly one-million square-feet.

Great Lakes Systems is an approved applicator for Carlisle SynTec, Elevate Roofing Systems, Duro-Last Roofing and Johns Manville.