We Are Certified by Top Roofing Manufacturers
To provide you with extended warranties on commercial projects, Great Lakes Roofing & Construction has been certified and approved by the manufacturers of the roofing systems we install. Achieving this certification requires extensive manufacturer training and the successful completion of several projects. Below are some of the manufacturers who have approved Great Lakes Roofing for the application of their systems and products:
While our most important approval comes from you, our customer, Great Lakes Roofing is also pleased to be recognized as an industry leader by our peers and prestigious trade professionals.
- Johns Manville Summit Club, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
- Presidents Alliance Club for ICC
- United States E.P.A. Lead Safe Certified