GSM Industrial logo
Commercial Roofing Services in Eastern PA, NJ, DE, & MD

Commercial Roofing Contractors with Unique Commercial and Specialty Roofing Solutions 

Few commercial roofers specialize in the unusual, the challenging or the unconventional. You need a commercial roofing contractor that stands out from the rest.   

Commercial and Specialty Roofing — It’s All We Do 

At GSM Roofing, we specialize in commercial jobs. And we welcome custom, specialty work.

When you choose a contractor who can meet every one of your commercial roofing needs, you’ll feel confident in the integrity of your roofing systems — and unlimited in your choice of roofing materials. We can handle slate, tile, metal, and more!

Bryn Mawr, PA Property Roof Maintenance


When you hire industrial roofing contractors to inspect your roof twice a year — as well as respond to emergency leaks — you can expect your commercial roof to last. We can help you protect your business and its valuable property.

commercial roofing services

Commercial Roofing

Whether you need a roof replacement or new construction, GSM Roofing has it covered. We can handle all types of commercial systems, including single-ply, built-up, and shingle roofs. We also have several green roof systems that can help reduce energy consumption.

special cottage roofing penn state abington

Specialty Roofing 

Your project might include multiple buildings at multiple locations or a variety of roofs and systems. That’s okay because they’re no match for the expanding expertise of our specialists. Challenging, custom, and daring jobs are at the heart of our business.

The GSM Roofing Difference

Over 100 Members in the 25-Year Club!

Our industrial and commercial roofing contractors are more than long-term employees. They are integral parts of our client relationships. One look at the 25-year wall in our office, and it becomes clear just how important our people are to our success and yours.

The expert, tenured, long-term commercial roofers we are proud to employ can solve any roofing problem. Our customers’ trust in them has led to our company’s longevity. When you need professionals who are focused on safety, doing their work the right way, and communicating with one another and customers with clarity, trust the team at GSM Roofing.

GSM 25 Year Club Wall
man high on rooftop straped in for safety

Trusted Expertise and Commitment to Excellence

  • Family-owned and operated for three generations 
  • Home to some of the most experienced specialty roofing contractors in the industry
  • Invested in the community and in our people

Our team is able to install, maintain, service, and repair hundreds of different types of roofing systems from countless manufacturers, and we provide emergency repairs 24/7/365. With GSM Roofing, you’ve got the last commercial roofer you’ll ever have to hire.

We work in all types of weather, never sacrificing craftsmanship or the safety of our employees and the people on your property. No leak is too difficult; no slope is too steep. We don’t shy away from the dirty, the dangerous, or the difficult.

GSM Roofing: Working and Giving in Your Community

We’ve been installing, replacing, and maintaining roofs in the eastern half of Pennsylvania, New Jersey, Delaware, and most of Maryland for nearly 80 years. Over those 8 decades, we have not only built a reputation for quality, professional, safe roofing, but we have also built relationships with area businesses and charitable organizations. 

Through philanthropic programs like the Great Roof Giveaway, we are giving back to non-profits in the areas we serve every year. We will continue to spearhead these programs because we believe in long-term relationships — not only with our valued clients but also in the communities where we work.  

If you have questions about our company or any of our commercial roofing services, get in touch with us today.

The Good Group Foundation Philanthropy - Check to Fulton Theater

Featured Projects 

Our commitment to excellence is reflected in our portfolio of featured projects. From large commercial complexes to churches and schools, we deliver superior roofing solutions tailored to each client’s unique needs, ensuring durability, reliability, and unmatched craftsmanship.

Roofing Tips

Our experts share insights to help you maintain, repair, and enhance your roof’s performance. From seasonal maintenance advice to choosing the right roofing materials, our blog is your go-to resource for all things roofing.

Customer Testimonials

Our satisfied clients speak volumes about our dedication to quality and customer satisfaction. Discover what our customers have to say about their experience with our expert roofing services, from timely project completion to exceptional attention to detail.

default image

Thanks for the GREAT service!!

Norma Dougherty Controller June 28, 2022