About Us

About GSM Services

Learn about GSM Services.

GSM Services has been providing high-quality home and commercial improvement services to the Greater Charlotte area since 1927. We offer a wide variety of services for residential and commercial properties, including heating and cooling, insulation, and roof repair and replacement.

With 90 years of experience providing outstanding quality and service, we are the North Carolina contractors you can trust. When you work with us, you can always count on exceptional craftsmanship and fantastic customer service. We look forward to the opportunity to serve you and your home or commercial property.

About the Owners

Steven and Joel Long Steven and Joel Long, co-owners of GSM Services

Steven and Joel Long are brothers, NC State graduates, and co-owners of GSM Services, located in Gaston County and established in 1927. They learned the business working with their father and are the third generation in their family to lead the company.

Joel is President of the Commercial Division, which includes Commercial HVAC and Roofing. Steven is President of the Residential Division, which includes Residential HVAC and Dr. Energy Saver.

In addition to a strong work ethic, both Steven and Joel are involved in community organizations that include the Rotary Club, the Community Foundation, the Boys and Girls Club, Cancer Services, and the Gaston Chamber. They share one vision: to develop lifetime customers by providing quality work and the ultimate service experience in everything they do.

Meet Our Team

Affiliations & Accreditations

BPI Certified Professional Carrier Distinguished Dealer North American Technician Excellence NCI

Recent Testimonials
  • ""I can "Feel" the results after my crawl space enclosure."" Read Full Testimonial

    Barry F. of Concord, NC

    Customer Testimonial

              "I can "Feel" the results after my crawl space enclosure. It gives my home more protection and is more energy efficient. I also see the results in my power bill charge each month. Thank you!"
    Barry F.
    Concord, NC
  • "You have the highest quality people working for you-They reflect you well!" Read Full Testimonial

    Jim A. of Concord, NC

    Customer Testimonial

              Just wanted you to know how wonderful we think GSM is! Matt labored for two days on a significant problem he encountered with our heat pump and furnace. Robert came the second day to help. It was a difficult problem, but they perservered and solved it. More recently, we had a problem when trying to switch over from AC to heat. Charlie came out, solved the problem and set our thermostat. In both instances, they served you well and we wanted you to know that you have the highest quality people working for you- they reflect you well!
    Jim A.
    Concord, NC
  • "Your price was the best quote we received." Read Full Testimonial

    Jennifer P. of Davidson, NC

    Customer Testimonial

              The deciding factor was the overall experience meeting with your comfort & energy advisor and price. Your price was the best quote we received. Quality and expert service. We have been extremely satisfied with the service that we have received. Competent, knowledgeable, complete experts. Thank you!
    Jennifer P.
    Davidson, NC

Customer Reviews
  • By Christopher
    King, NC

    "Service was great."

    Customer Review

    By Christopher
    King, NC

    Service was great.

  • By Tom R.
    Gastonia, NC 28052, NC

    Customer Review

    By Tom R.
    Gastonia, NC 28052, NC

  • By Steve P.
    Mooresville, NC

    "Great service at all three of our homes and businesses"

    Customer Review

    By Steve P.
    Mooresville, NC

    Great service at all three of our homes and businesses

Our History

GSM Services is a third-generation business that originally started out as a small sheet metal shop and metal roofing company. W. Fred Long opened the business in 1927 and later passed it to his son Ronald J. Long, Sr. in 1971, who passed it to his sons Steven and Joel in 2005.

As the company expanded over the years, we took to duct fabrication, commercial roofing, commercial and residential HVAC, and energy services. We are proud of the ways our company has grown as well as the fact that we have never lost touch with our roots or sacrificed quality or service. We are excited about the future that we have in the Greater Charlotte community.

Our Mission

At GSM Services, our mission is simple: To provide comfort and peace of mind to every customer, on every call, every day. Our vision is to develop lifetime customers by providing quality work and the ultimate service experience in everything we do. We always do what we say we are going to do when we say we are going to do it. We will provide the best possible working environment for our co-workers while planning for growth each year to maintain the company's long-term success.

We understand the importance of family values, building relationships with our customers, and always providng the best services available. It's how we've been so successful for nearly a century, and we look forward to continuing to bring our values to our customers.

Bob and Sheri Speak on Remaining Cool
Bob and Sheri speak about GSM Services on ways to improve your home comfort this summer. Remain "cool" and... Watch Video

Community Involvement

GSM Services understands the importance of giving back to the community, and we are proud of the opportunities and partnerships we've had over the years. One of our favorite methods is through our pink van. This van is used for many projects, and proceeds from work performed using the van goes to Cancer Services of Gaston County.

Over the years, we have also had the opportunity to work with charitable organizations such as United Way, the Gaston County School System, the Boys and Girls Clubs of Greater Gaston County, Salvation Army, and the Shelter of Gaston County. We are proud of the impact we've been able to make in our community, and we look forward to future opportunities to give back.


  • Best of Gaston 2017
  • Best Insulation Contractors in Charlotte 2016
  • 2016 Outstanding Employer Award Winner - Governor's NCWorks Award of Distinction
See all Awards

our service area

We serve the following areas

North CarolinaSouth Carolina Our Locations:

GSM Services
1535 W May Ave
Gastonia, NC 28052