We Are Certified by Top Roofing Manufacturers

In order to be able to provide you with extended warranties on commercial projects, we have been certified and approved by the manufacturers of the roofing systems we install. This is only accomplished through extensive manufacturer training and the successful completion of several projects. Following are manufacturers who have approved Great Lakes Roofing for application of their systems and products:

GAF Firestone Johns Manville Astec
Duro-Last Mule-Hide GenFlex

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.

Get a FREE Estimate

Call Great Lakes Roofing & Construction today at 866-551-7121 or 219-852-9323 to schedule a FREE roof inspection and estimate for your commercial roofing project.


Maintenance and routine inspections are a great way to avoid unneeded Florida roof replacements.
Repairing smaller damaged portions of your roof is more cost effective than replacing an entire roof.
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