• Free estimate in Greater Charlotte
  • Heating and Cooling experts in Greater Charlotte
  • Insulation and energy servies in Greater Charlotte

Expert Home Improvement Contractors in Greater Charlotte

Get quality solutions for all your roofing, HVAC, and insulation needs

Why Choose Us?

  • In business since 1927
  • 24/7 emergency service
  • Numerous awards and certifications
  • Extensive warranty options

If you want a more comfortable, efficient house or commercial building, GSM Services are the contractors that you've been looking for. We provide expert commercial roof repair and replacement, heating and cooling services, and insulation services throughout North Carolina. With nearly 90 years of experience in the industry, we bring unmatched expertise and quality to all our residential and commercial services.

GSM Services has been serving our customers since 1927, and we're proud of the legacy and reputation that we have built. We strive to develop lifetime customers by providing quality work and the ultimate service experience in everything we do. Our mission is to provide comfort and peace of mind to every customer, on every call - every day.

If you want to learn more about the services we can provide for your home or business, give us a call at 1-704-864-0344 or click below. We offer free estimates on all our work in Gastonia, Charlotte, Rock Hill and nearby.


Our Services

Residential HVAC repair & installation in NC

We service your heating and cooling unites to be sure they are working properly. We also replace HVAC systems.

Services for different types of heating in NC

We can repair, replace and install a variety of different types of heating systems to meet your needs.

Energy Audit

A home energy audit is a great way to properly pinpoint the exact sources of your energy and home comfort concerns.

Commercial heating and cooling contractor in NC

Complete range of services to area businesses, commercial real estate properties, and institutions.

Home Insulation

The first step in making your home more comfortable and energy efficient is upgrading your insulation.

Air Sealing

Sealing air leaks can eliminate cold drafts, improve air quality & help insulation work more effectively.


Stay comfortable with our heating and cooling services

Keeping your home or business comfortable and energy efficient can be a challenge, but the experts at GSM Services will ensure all your needs are taken care of. We provide complete energy, heating, and cooling services for all residential and commercial properties.

We conduct thorough energy audits to identify any problem areas and then present you with the best solutions to these problems. We provide including repair and installation of systems like central air conditioning, furnaces, water heaters, and boilers, all of which will help keep your home or business comfortable and energy efficient.

Improve comfort and efficiency with home insulation

Many homes lack proper insulation, which can create uncomfortable temperatures and raise utility costs. Our complete home insulation services provide a quality solution to these problems.

When we insulate your home, we will first use air sealing to prevent any leaks, then complete insulate the space. We offer spray foam, blown-in, and rigid board insulation, and we will find the best material for your needs. When the installation is complete, you will enjoy even and comfortable temperatures throughout the house, as well as lower energy costs.

Customer Review
  • By James S.
    Mt. Holly, NC
    "It has been such a pleasure since we contacted you for service, and now..."

    Customer Review

    By James S.
    Mt. Holly, NC

    It has been such a pleasure since we contacted you for service, and now that were on the service plan, it has made everything go so smoothly. Taylor was very professional and pleasant to have do our checkup. I have recommended you to friends, and my enemies to the company that installed the system. I wish I would have hired you to install system. Thanks
  • By Blue L.
    Charlotte, NC
    "Irritating to fill out name and address at beginning of survey. If you..."

    Customer Review

    By Blue L.
    Charlotte, NC

    Irritating to fill out name and address at beginning of survey. If you know enough info to send the survey, looks like we shouldn't have to type it all again. We're happy to give feedback, but not to tell you what you already know
  • By Ann M.
    Charlotte, NC
    "The GSM team are true professionals -- knowledgeable,courteous and timely..."

    Customer Review

    By Ann M.
    Charlotte, NC

    The GSM team are true professionals -- knowledgeable,courteous and timely. Importantly, they leave their work space neat and tidy upon completing the job.
  • By Margaret F.
    Dallas, NC
    "I had a team effort from GSM and each member of this team was awesome. the..."

    Customer Review

    By Margaret F.
    Dallas, NC

    I had a team effort from GSM and each member of this team was awesome. the inspection tech was pleasant thorough and informative. the sales rep was helpful and I felt comfortable with my choice. the installation team was superior. I felt comfortable with having them here and their work was exceptional. I could not have had a better team and I was impressed with the entire team. If all your employees are this good then you are lucky in your choice of employees. Thank for this team
  • By Dennis M.
    Lowell, NC
    "Emailing a picture of the service person that was coming is an excellent..."

    Customer Review

    By Dennis M.
    Lowell, NC

    Emailing a picture of the service person that was coming is an excellent practice, especially for a senior community like Magnoia Place.
  • By Ellen B.
    Lowell, NC
    "Always the best service and products! Thank you, GSM!!"

    Customer Review

    By Ellen B.
    Lowell, NC

    Always the best service and products! Thank you, GSM!!
  • By Robert M.
    Cherryville, NC
    "We have never had a problem with the quality of our unit, the associates,..."

    Customer Review

    By Robert M.
    Cherryville, NC

    We have never had a problem with the quality of our unit, the associates, scheduling, or emergency calls. We highly recommend GSM to everyone. Great customer service. Professional, clean, and respectful employees and techs. GSM put our Heating & Air system in and has been servicing our unit every year now since April 2005. Thank you all so much. Sincerely, Robert & Angela Moffett
  • By Robert K.
    Gastonia, NC
    "GSM is nothing but excellent! Professional, friendly and careful staff."

    Customer Review

    By Robert K.
    Gastonia, NC

    GSM is nothing but excellent! Professional, friendly and careful staff.
  • By Janet E.
    Gastonia, NC
    "We are always pleased with GSM. Any issues we have are always handled with..."

    Customer Review

    By Janet E.
    Gastonia, NC

    We are always pleased with GSM. Any issues we have are always handled with professionalism.

Protect your business with quality commercial roofing

Your commercial building is essential to your business, and our commercial roofing services will ensure that you are protected. We provide repair, replacement, and emergency roofing services for multiple roofing materials.

An old, worn, or damaged roof can lead to several problems for your business, including leaks that cause damage to property and lost productivity. Our roofing services will ensure that your commercial building stays dry and protected. Modern commercial roofing materials can also improve energy efficiency, giving you even more reason to upgrade your roof.

Enjoy a more comfortable, energy efficient home today

If you're interested in making your home or commercial building more comfortable and energy efficient, call the experts at GSM Services. We have unmatched experience and professionalism, and we can help solve all your HVAC, insulation, and roofing problems.

We provide all our residential and commercial services in Charlotte, Gastonia, Rock Hill, Matthews, Hickory, Mooresville, Kannapolis, Lincolnton, Concord, Gaffney and throughout the surrounding areas. Call us today to get started with a free estimate!

Looking for a price? Get a no cost, no obligation free estimate.

Serving NC including the Greater Charlotte area
Our North Carolina Service Area
Cities in Cabarrus County, NC
Concord
Harrisburg
Kannapolis

Cities in Catawba County, NC
Conover
Hickory
Maiden
Newton

Cities in Cleveland County, NC
Boiling Springs
Earl
Fallston
Grover
Lattimore
Lawndale
Polkville
Shelby
Waco

Cities in Gaston County, NC
Alexis
Belmont
Bessemer City
Cherryville
Cramerton
Dallas
Gastonia
Lowell
Mc Adenville
Mount Holly
Mt. Holly
Stanley

Cities in Iredell County, NC
Mooresville

Cities in Lincoln County, NC
Denver
Iron Station
Lincolnton
Vale

Cities in Mecklenburg County, NC
Charlotte
Cornelius
Davidson
Huntersville
Matthews
Mint Hill
Newell
Paw Creek
Pineville

Cities in Rutherford County, NC
Forest City

Cities in Union County, NC
Indian Trail
Marvin
Matthews
Waxhaw

Cities in Cherokee County, SC
Gaffney

Cities in Chester County, SC
Edgemoor

Cities in York County, SC
Bowling Green
Catawba
Clover
Fort Mill
Hickory Grove
Lake Wylie
Mc Connells
Rock Hill
Sharon
Tega Cay
York

Please call us at: 1-704-325-5362
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BBB
Building Performance Institute