Cornerstone Construction

Certifications & Awards

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  GAF Certified™ Commercial Contractor

  GAF Certified™ Commercial Contractors can offer the GAF Integrated System Limited Warranty and System Pledge™ Roof Guarantee. They are required to be properly insured & licensed (in states where required) to become certified.

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  GAF CoatingsPro™ Liquid Applied Roofing Contractor

  GAF CoatingsPro™ Liquid Applied Roofing Contractors focus on coatings and liquid membranes, and can offer the Liquid-Applied Emerald Pledge™ Limited Warranty. This certification requires proper insurance and licensing, a strong reputation for quality, and a commitment to understanding the latest technology and installation methods.