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An Expansive Commercial Roofing Service Area to Better Serve You

From Potter to Wayne County and from Bedford to Philadelphia. From Central and Southern New Jersey to Delaware and most points in Maryland. This is our expansive commercial roofing service area, and it’s where our roofing professionals take on all types of demanding jobs.

We define our ideal commercial roofing job as any specialty project, but that’s not all. We also welcome the dirty, dangerous, and difficult. Let’s talk about what roofing challenges you have ahead of you and how we can help.


Our Commercial Roofing Service Area at a Glance

At GSM Roofing, our focus is on repairs that last, maintenance that extends the life of your roof—and only after we’ve exhausted those options will we look at roof replacement. We started our company in 1946, and way back then, we knew that service and inspection would extend the life of all types of roofs to eliminate worry and reduce costs over time. We adhere to that same principle today and would be honored if you’d trust the care of your commercial roof to our specialists.

If you are in our commercial roofing service area, we invite you to get in touch today. We’ll talk about a plan for turning your roof into one that will protect your building and everything in it.

map of service area

The Counties in Pennsylvania We Serve

If you have a commercial or historical building in any of the following Pennsylvania counties, contact us for roof maintenance no matter what type of roofing material is covering that building. We will thoroughly inspect your building’s roof and do everything possible to avoid (or postpone) replacement.

  • Adams
  • Bedford
  • Berks
  • Blair
  • Bradford
  • Bucks
  • Carbon
  • Centre
  • Chester
  • Clinton
  • Columbia
  • Cumberland
  • Dauphin
  • Delaware
  • Franklin
  • Fulton
  • Huntingdon
  • Juniata
  • Lackawanna
  • Lancaster
  • Lawrence
  • Lebanon
  • Lehigh
  • Luzerne
  • Lycoming
  • Mifflin
  • Monroe
  • Montgomery
  • Montour
  • Northampton
  • Northumberland
  • Perry
  • Philadelphia
  • Pike
  • Potter
  • Schuylkill
  • Snyder
  • Susquehanna
  • Tioga
  • Union
  • Wayne
  • Wyoming
  • York

We Serve the Entire State of Delaware

The commercial roofing professionals at GSM Roofing regularly travel to Delaware to complete everything from roof repairs to roof replacements—and everything in between. If you find that your building’s roof is leaking, or you’d like to sign up for a maintenance plan to protect your building and everything in it, get in touch with us. We’re in Delaware regularly and would like to add you to our list of satisfied customers.

The Maryland Counties We Serve

For commercial properties in Maryland that have roofs made from metal, slate, tile, cedar, single-ply, shingles, and much more, we recommend that you contact us as soon as possible to begin a roof maintenance program or stop those existing leaks—to extend the life of the entire roofing system. Here are the Maryland counties we serve:

  • Anne Arundel
  • Baltimore
  • Baltimore City
  • Calvert
  • Caroline
  • Carroll
  • Cecil
  • Dorchester
  • Frederick
  • Prince George’s
  • Harford
  • Howard
  • Kent
  • Montgomery
  • Queen Anne’s
  • Somerset
  • Talbot
  • Washington
  • Wicomico
  • Worchester

Commercial Roofing in New Jersey

Our customers in New Jersey have hired us for re-roofing and green roofing. They also hire us for single-ply and built-up roofs. But of course, the list doesn’t end there. We also do specialty roofing, like cedar and slate, in The Garden State. If your commercial building is in any of the following New Jersey counties, contact us today for a quote.

  • Atlantic
  • Burlington
  • Camden
  • Cumberland
  • Gloucester
  • Hunterdon
  • Mercer
  • Middlesex
  • Monmouth
  • Ocean
  • Passaic
  • Salem
  • Somerset
  • Union

Expert Roofing Solutions for Every Stage and Style

Maintenance Services

GSM Roofing offers comprehensive commercial roof maintenance services designed to extend the lifespan of roofing systems and minimize unexpected repair costs. Our inspections utilize advanced technologies, like infrared imaging and drone assessments, to detect potential issues early. We provide repairs for a wide variety of issues, including blocked gutters and leaks as well as flashing damage and membrane tears.

Commercial Roofing Installations

With decades of experience, we specialize in both new construction and roof replacements, offering a variety of roofing systems, such as single-ply membranes (EPDM, TPO, PVC), built-up roofs, shingle roofs, and innovative green roofing solutions (like vegetative roofs and roof coatings). We can cater our services to a diverse range of structures, including schools, churches, healthcare facilities, and industrial buildings.

Specialty Roofing

These services cater to commercial clients seeking distinctive, high-performance roofing solutions that combine functionality with architectural appeal. Our expertise encompasses a range of premium materials, including tile, metal, cedar, and slate roofing (we helped write the National Slate Association’s installation manual). Additionally, we regularly handle historical roofing restorations, working with materials common to historic buildings to preserve their integrity and ensure modern protection.

Thanks for putting us in contact with Eric. He is very knowledgeable , professional and I enjoyed our time together. We met yesterday morning and he is forwarding a report and budget proposal. With your firms Roofing help and additional home inspections regarding Stucco Moisture tests we have uncovered a $40K + problem we would have inherited. Now it’s the sellers problem. Negotiations continue. Have a good weekend.

Frank Polan Sr Operations Manager