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  • 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 units 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 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 completely 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 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
  • By Ellenjane L.
    Concord, NC
    "I have always found the GSM workers, office and service people very..."

    Customer Review

    By Ellenjane L.
    Concord, NC

    I have always found the GSM workers, office and service people very respectful and professional.
  • By Rich H.
    Cornelius, NC 28032, NC
    "Excellent customer service, work and people."

    Customer Review

    By Rich H.
    Cornelius, NC 28032, NC

    Excellent customer service, work and people.
  • By Danielle H.
    Iron Station, NC
    "GSM has always been efficient and dependable for us."

    Customer Review

    By Danielle H.
    Iron Station, NC

    GSM has always been efficient and dependable for us.
  • By Tommy A.
    28164, NC
    "This was an install for my parents, 2 weeks ago we did the same install at..."

    Customer Review

    By Tommy A.
    28164, NC

    This was an install for my parents, 2 weeks ago we did the same install at my house and was so satisfied with mine that I did not consider any other company to take care of my parents
  • By George C.
    Lincolnton, NC
    "Always receive professional service and service person is very friendly..."

    Customer Review

    By George C.
    Lincolnton, NC

    Always receive professional service and service person is very friendly and considerate of our needs.
  • By Phil &.
    Lincolnton, NC
    "Zack was courteous and professional and gave us a clear understanding of..."

    Customer Review

    By Phil &.
    Lincolnton, NC

    Zack was courteous and professional and gave us a clear understanding of the system, and service options and recommendations. Very thorough and pleasant to work with.
  • By Paul
    Mount Holly, NC
    "Very kind men did a super job. We were impressed with the top notch..."

    Customer Review

    By Paul
    Mount Holly, NC

    Very kind men did a super job. We were impressed with the top notch quality of the job done.
  • By Nicole
    Mount Holly, NC
    "Everyone was very nice and they did great job."

    Customer Review

    By Nicole
    Mount Holly, NC

    Everyone was very nice and they did great job.

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

Our Locations:

GSM Services
1535 W May Ave
Gastonia, NC 28052
1-704-325-5362
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Building Performance Institute