Commercial & Specialty Roofing Contractor 800-532-ROOF (7663)
Gradient Gradient Ready To Go Roofing Services
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Why GSM Roofing?

GSM Roofing is a private, family-owned, professional service company, specializing in the installation and maintenance of commercial and specialty roofing. Founded in 1946, we operate in the South Central & South Eastern PA, MD, DE and NJ region with a full scope of services that includes roof service & maintenance, re-roofing, new construction roofing, historic restoration and custom metal fabrication. GSM also offers roof safety solutions and other building envelope products. More


We believe the prevention of accidents and injuries is so important, that a safe working environment has precedence over productivity whenever necessary. More

News + Videos

White Roofs vs. Black Roofs: Top 3 Myths Revealed

White roofs are better than black roofs. We’ve heard this a lot lately. In fact, city councils throughout the country More