Trust Our Team
At GSM Roofing, our team is the foundation of our success. With decades of experience, we bring a deep commitment to quality, safety, and innovation in every project we take on. Our skilled professionals work together to provide exceptional roofing solutions tailored to each client’s needs. Dedicated to delivering superior craftsmanship and service, our team is passionate about building long-lasting roofs and relationships. Meet the people who make GSM Roofing a trusted name in the industry.
What We Do
We have worked on virtually every commercial building type, roofing system, and project challenge common to the Mid-Atlantic region. Here is the full scope of what we provide.
Commercial Roofing
New construction and roof replacement across all major commercial systems: single-ply membranes including TPO, EPDM, and PVC, built-up roofing, modified bitumen, shingle, and roof coatings. We work on buildings of every scale, from single retail facilities to large industrial campuses with multiple structures and complex rooftop equipment. General contractors, building owners, and developers bring us in when the roofing scope cannot afford to go wrong.
Maintenance and Service Work
Preventive maintenance programs, biannual inspections, targeted repairs, emergency response, roof snow removal, and curb installations for rooftop HVAC equipment. Our Exceptional Roof Protection Plan is built specifically for facility managers who need documented maintenance records, a defined response time commitment, and a contractor who learns their buildings over time. Every plan includes a guaranteed 2-business-day response to any leak that develops between scheduled visits.
Specialty and Historic Roofing
Slate, tile, metal, cedar shake, custom copper, lead-coated systems, and historic restoration on landmark structures. Most commercial roofing contractors cannot do this work. We contributed to the National Slate Association’s installation manual and have restored roofs on significant historic buildings throughout the region, including the Nittany Lion Inn at Penn State, President Buchanan’s Wheatland in Lancaster, and Cabrini College in Philadelphia. When a building cannot be replaced, the contractor restoring its roof needs to understand what that means before the work begins.
Emergency Response
Active leaks, storm damage, wind blow-off, membrane failure. We provide 24/7 emergency commercial roof repair across PA, NJ, DE, and MD. Call 800-532-ROOF at any time. Two offices means genuine coverage across the full service area, not a single dispatch point.
What Sets Us Apart
Nearly 80 Years Without Interruption
We have operated continuously since 1946 through three generations of the same family. That means the roofing systems we installed decades ago are still being serviced by crews who know them. It means our supplier and manufacturer relationships are built on mutual performance over decades. And it means when a client has a problem, they reach a company with real institutional memory, not a call center working from a ticket system.
A Workforce That Stays
More than 100 of our employees have been with us for 25 years or more. In a trade with high turnover, that number is unusual enough to be worth stating plainly. The crew that shows up at your building is not new to commercial roofing. Many of them have been doing this longer than some of our competitors have been in business. When you are evaluating roofing contractors and price looks similar, this is the difference that matters.
Two Offices, Real Local Coverage
Our Ephrata, PA office covers Lancaster, Chester, Berks, Lehigh, Philadelphia, and surrounding counties. Our Elkton, MD office covers Cecil County, New Castle County, Baltimore, and the surrounding tri-state area. Two offices means local crews, local response times, and teams who know the buildings and conditions in their markets. It is not the same as a regional headquarters dispatching crews across four states.
COSTARS Registration
We are a registered COSTARS supplier (No. 008-E23-1112). Pennsylvania school districts, municipalities, county governments, and state agencies can hire us directly without running a competitive bid. For public-sector facility managers who spend significant time managing procurement, this is a practical advantage that a small fraction of commercial roofing contractors in Pennsylvania can offer.
GAF GoldElite Certification
We hold GAF’s GoldElite Commercial Contractor designation, the highest tier in GAF’s commercial contractor program. This authorizes us to offer GAF’s strongest commercial warranties, including the Golden Pledge warranty, which provides manufacturer-backed coverage that a standard labor warranty cannot match. For building owners who want maximum long-term protection on a replacement investment, the distinction matters.
Safety Without Compromise
We employ a full-time dedicated Safety Director. Every crew member receives ongoing training, and we comply with all OSHA roofing guidelines and manufacturer safety requirements. We are enrolled in Avetta and ISNetworld, the leading contractor safety compliance platforms required on institutional, healthcare, and government projects. Facility managers who have dealt with safety incidents on their properties know why this needs to be confirmed before a crew arrives.
