Commercial Roofing Solutions for a Wide Range of Industries
Since 1946, GSM Roofing has served as the commercial roofing contractor of choice for some of the most demanding facilities in Pennsylvania, New Jersey, Delaware, and Maryland. Our clients operate manufacturing plants, healthcare campuses, educational institutions, and more — environments where a roof failure is not just a maintenance problem. It is an operational one.
We bring manufacturer credentials that most regional contractors can’t match: we are a Master Contractor for Elevate, an Elite Contractor for Sika Sarnafil, and hold over 1,000 Perfect 10 installation certifications with Carlisle SynTec. Our team includes NRCA ProCertified technicians, and our experience with specialty roofing runs deep enough that we were selected to help write the National Slate Association’s installation manual.
Every industry on this page presents its own roofing challenges. We’ve worked in them long enough to understand those challenges and to have solved them, repeatedly, for clients who needed a contractor they could trust to get it right the first time.