Belmont, NC HVAC & Home Services

AC Repair, HVAC Installation, Insulation, Crawl Space, & Duct Cleaning Services in Belmont, NC

For over 98 years, GSM Services has made home comfort easy with trusted service, reliable solutions, and top-quality work in Gaston County. As a locally owned, licensed, and insured home comfort expert, we provide heating & cooling, insulation, air duct cleaning, and crawlspace services to improve comfort, air quality, and energy efficiency. Enjoy easy online booking, instant quotes, and free service calls with any repair!

Duct Cleaning and HVAC System Cost in Belmont, NC

Need a new heating and cooling system or duct cleaning services? Get a free instant quote online in just 30 seconds!

Heating & Air Conditioning Services Provided in Belmont, NC:

Mold Removal, Crawl Space, Insulation & Other Home Comfort Services Offered in Belmont, NC:

AC Installation Experts

GSM Services specializes in energy-efficient heating and cooling system installations that enhance your home's comfort and save on energy costs. Our certified professionals ensure a smooth, reliable experience from start to finish. Book a FREE consultation online in seconds to explore ultra-quiet, high-efficiency systems that boost comfort, improve air quality, and lower energy bills. With clear pricing, flexible financing, and industry-leading warranties, upgrading your heating system has never been easier!

Air Conditioning Service & AC Repair in Belmont, NC

At GSM Services, our certified HVAC technicians inspect, service, repair, and replace all heating & cooling systems, any brand or model. Need a furnace repair? We'll waive the $69 diagnostic fee with your repair! Our licensed experts offer fast, affordable service, pinpointing issues with thorough inspections. Enjoy free service calls with repairs, upfront written estimates, and no surprises. All repairs come with outstanding warranties for your peace of mind.

Certified for All HVAC System Types, Makes & Models

Heating Systems:
  • Gas furnaces
  • Oil furnaces
  • Electric furnaces
  • Propane furnaces
  • Air Handlers
  • Ductless Heating
Cooling Systems:
  • Central Air Conditioners
  • Heat pumps
  • Geothermal
  • Ductless AC Mini Splits
  • Package Units

Insulation Services in Belmont, NC:

We are Belmont's top home insulation company. At GSM Services, we offer expert insulation solutions to boost your home's energy efficiency and comfort. Our skilled team handles everything from attics to crawl spaces, ensuring precise installation and significant energy savings. Rely on us for professional, dependable service tailored to meet your insulation needs.

Belmont's Crawl Space Experts

Struggling with moisture, mold, or damage in your crawl space? We’re here to help! Our experts transform crawl spaces into healthy, energy-efficient spaces. Get a FREE Crawl Space Inspection today! We will check the humidity level, look for any mold or growth, inspect your home's insulation and air duct system, air leakage, air quality and more! We can provide you different solutions to create a healthy, comfortable, and safe environment under and inside your home.

Crawl Space Services We Offer:

Duct Cleaning Services in Belmont:

Our duct cleaning services thoroughly clean your entire duct system—not just the air vents—to ensure optimal air quality and system efficiency. We start with a full inspection, checking for tears, leaks, or any issues that could affect performance. Our comprehensive cleaning service includes a special disinfectant spray treatment to leave your ducts fresh and sanitized. Get a free, instant online quote in seconds and breathe cleaner air with our professional duct cleaning services!

Duct Cleaners in Belmont

Photo Galleries From Belmont

new door - installed to ensure air sealed and insulated from the outside.

insulated and air sealed

all ground floor sealed

News & Events From from Belmont
Start 2017 with saving Energy, Money, & the Planet!

Home improvements are a great way to start off your new years resolution of "saving money". Take a look at your heating and cooling costs and have a Whole Home Energy Evaluation done.... [Read more]

Is a wifi thermostat right for your home?

Do you need a wifi thermostat in your home? How much does a wifi thermostat cost? What makes a wifi thermostat smart? How much money can you save with a wifi thermostat?.... [Read more]

Save Energy on Heating with This List

High energy bills can come as a surprise in the winter. In our service area, air conditioners see a lot more use than heaters. When temperatures drop, homeowners might feel relieved as bills start to lower as well-until the heater becomes more and more of a necessity.... [Read more]

More News & Events
Work Requests From Belmont, NC
  • Project Location: Belmont, NC
    Moved into a new house and would like the HVAC inspected.
  • Project Location: Belmont, NC
    I need an estimate for a new AC system.
  • Project Location: Belmont, NC
    Replacing original 30 year old system, a/c and gas pack and probably duct work. 1650 sq. ft. ranch on crawl space, good head room. 12 registers, two returns.
  • Project Location: Belmont, NC
    Schedule my Cooling System Service.
  • Project Location: Belmont, NC
    Spring AC check
  • Project Location: Belmont, NC
    Set up Spring tune-up
  • Project Location: Belmont, NC
    Schedule Spring maintenance
  • Project Location: Belmont, NC
    I need to replace my heating and air unit. As far as I know, the duct work is ok, but would need to be checked. House is 800-900 sq feet.
  • Project Location: Belmont, NC
    Our heat pump needs to be replaced. I am interested in pricing a geothermal heat pump.
  • Project Location: Belmont, NC
    Would like to get an estimate on running duct work into screened in porch from existing unit. We are making it into an all seasons porch.
  • Project Location: Belmont, NC
    Filter changes, preparing for winter with heat check and new home, refrigerator leak
  • Project Location: Belmont, NC
    Need a tune up
  • Project Location: Belmont, NC
    Insulate detached garage attic and garage door
  • Project Location: Belmont, NC
    Want to set up maintenance program for HVAC system
  • Project Location: Belmont, NC
    Inspection
  • Project Location: Belmont, NC
    Fan not spinning on outside unit.
  • Project Location: Belmont, NC
    Looking for general tune-up plus making sure the ac drain lines in the crawl space are sloped correctly. Looks like there are some bows in the drain lines. Furnace pvc exhaust pipe also needs repair at the exterior wall where someone (landscaper?) previously broke the end of the pipe.
  • Project Location: Belmont, NC
    Need to schedule ac check. Not cooling
  • Project Location: Belmont, NC
    I would like a quote on fixing my crawlspace and i need my dryer vent cleaned
  • Project Location: Belmont, NC
    I have a home air-conditioning unit that is about 12 years old that I would like to replace. The unit, I was told the last time it was repaired, uses Freon 22 and is considered as being closed to its end of life. The unit is currently operational although is not cooling as fast as I believe it should. In a recent mailing I received from GSM there is a "Home Health Confort Care Package" advertised that got me to consider replacing the air-conditioning unit I am concerned about.
See all work requests
Products & Services
HVAC Systems
  • air conditioning company
  • air conditioning systems
  • central air conditioning
  • ductless air conditioning
  • gas furnace
  • geothermal heating and cooling
  • HVAC tune ups
  • high-efficiency HVAC systems
  • ductless heating systems
  • HVAC companies
  • furnace installation
  • furnace repair
  • air conditioning installation
  • air conditioning repair
  • heat pump installation
  • heat pump repair
Crawl Space Repairs
  • crawl space encapsulations
  • crawl space vapor barrier
  • crawl space cleanings
  • mold removal
  • dehumidifers
  • crawl space inspections
Home Energy Audits
  • energy efficiency audit
  • air leakage testing
  • blower door testing
  • crawl space inspection
  • attic inspection
  • insulation inspection
Home Generators
  • generator installation
  • generator repair
  • generator service
Home Insulation Services
  • attic insulation
  • insulation installation
  • insulation inspections
  • insulation removal
  • insulation company
  • blown in insulation
  • cellulose insulation
  • duct insulation
  • green insulation
  • insulation contractors
  • pipe insulation
  • reflective insulation
  • rigid foam insulation
  • roof insulation
  • wall insulation
  • window insulation
  • Crawl Space Insulation
  • radiant barrier insulation
Air Sealing
  • sealing air leaks
  • air duct leakage
  • air duct sealing
  • air leakage testing
  • door air seal
  • window air leakage
Air Duct Cleaning
  • duct cleaning services
  • duct disinfectant spray treatment
  • air vent cleaning
Ductwork
  • ductwork repair
  • ductwork installation
  • ductwork cost
  • furnace ductwork
  • HVAC ductwork
  • duct cleaning
Dryer Vent Cleaning
  • dryer vent cleaning services
  • dryer vent replacement
Before and After Pictures from Belmont
Before
After

Furnace Tune Up


Before
After

Humidifier maintenance and tune up


Before
After

Crawl space - Encapsulation

Company Awards

2025 Best of Gaston

2025 Best Heating & Cooling Company

GSM Voted 2025 Community Choice Award Winner.

2023 Community Choice Award Winner - Best of Gaston

2024 Community Choice Award Winner

Voted Best Local HVAC Company in 2024.

2023 Community Choice Award Winner - Best of Gaston

2023 Community Choice Award Winner

Voted Best Heating & AC Company & Best Home Service Provider in the county.


2022 Best of Gaston

Best of Gaston 2022

GSM Services won Best Heating & Cooling Company and Top Place To Work in the County!


Best Contractor to Work For

Best Contractor to Work For - ACHR News

Named Best Contractor to Work For by ACHR News, a leading national industry publication in 2021.



2021 Best of Gaston

Top Place to Work in Charlotte

GSM was recognized as one of the Top Places to Work in 2019 by The Charlotte Observer.

Recent Jobs and Reviews in Belmont, NC

Job Locations and Reviews

Dryer vent Cleaning
Dryer vent Cleaning
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Dryer vent Cleaning
Belmont, NC 28012
Amana S Series Unit Installation
Amana S Series Unit Installation
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Install T. Checked in
Amana S Series Unit Installation
Belmont, NC 28012
Belmont, NC - Generator Call, Performed a new installation of a Generac generator
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Generator Call, Performed a new installation of a Generac generator
Belmont, NC 28012
AC Call, Performed a changeout of a Gas Pack unit
AC Call, Performed a changeout of a Gas Pack unit
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AC Call, Performed a changeout of a Gas Pack unit
Belmont, NC 28012
AC Call, Performed an installation of a Mitsubishi Mini Split
AC Call, Performed an installation of a Mitsubishi Mini Split
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AC Call, Performed an installation of a Mitsubishi Mini Split
Belmont, NC 28012
Crawl Space Call, Performed an encapsulation of the crawl space
Crawl Space Call, Performed an encapsulation of the crawl space
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Crawl Space Call, Performed an encapsulation of the crawl space
Belmont, NC 28012
Furnace Call, Performed a changeout of the system
Furnace Call, Performed a changeout of the system
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Furnace Call, Performed a changeout of the system
Belmont, NC 28012
Mini Split Call, Performed an installation of a Mitsubishi Mini Split
Mini Split Call, Performed an installation of a Mitsubishi Mini Split
Install T.
Install T. Checked in
Mini Split Call, Performed an installation of a Mitsubishi Mini Split
Belmont, NC 28012
Belmont, NC - Furnace Call, Performed a changeout of a gas furnace
Rachel C.
Rachel C. Checked in
Furnace Call, Performed a changeout of a gas furnace
Belmont, NC 28012
Guttering Call, Performed a gutter cleaning
Guttering Call, Performed a gutter cleaning
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Guttering Call, Performed a gutter cleaning
Belmont, NC 28012
Furnace Call, Performed a changeout of AC & Furnace
Furnace Call, Performed a changeout of AC & Furnace
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Install T. Checked in
Furnace Call, Performed a changeout of AC & Furnace
Belmont, NC 28012
Dryer Vent Call, Before & After of a Dryer Vent cleaning
Dryer Vent Call, Before & After of a Dryer Vent cleaning
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Dryer Vent Call, Before & After of a Dryer Vent cleaning
Belmont, NC 28012
Dehumidifier Call, Performed an installation of a new Sante Fe Dehumidifier and encapsulation
Dehumidifier Call, Performed an installation of a new Sante Fe Dehumidifier and encapsulation
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Dehumidifier Call, Performed an installation of a new Sante Fe Dehumidifier and encapsulation
Belmont, NC 28012
Air Seal Call, Performed an air sealing of the crawl space
Air Seal Call, Performed an air sealing of the crawl space
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Air Seal Call, Performed an air sealing of the crawl space
Belmont, NC 28012
Insulation Call, Installed blow-in cellulose insulation and re-insulated the attic.
Insulation Call, Installed blow-in cellulose insulation and re-insulated the attic.
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Insulation Call, Installed blow-in cellulose insulation and re-insulated the attic.
Belmont, NC 28012
Dehumidifier Call, Before & After of an Installation of a dehumidifier
Dehumidifier Call, Before & After of an Installation of a dehumidifier
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Dehumidifier Call, Before & After of an Installation of a dehumidifier
Belmont, NC 28012
AC and Heating Call, Performed new installation of an AC and Furnace
AC and Heating Call, Performed new installation of an AC and Furnace
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AC and Heating Call, Performed new installation of an AC and Furnace
Belmont, NC 28012
AC & Furnace Call, Replaced Air Conditioner and Furnace
AC & Furnace Call, Replaced Air Conditioner and Furnace
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AC & Furnace Call, Replaced Air Conditioner and Furnace
Belmont, NC 28012
HVAC Installation, New AC Unit
HVAC Installation, New AC Unit
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HVAC Installation, New AC Unit
Belmont, NC 28012
New HVAC Unit, HVAC Unit Install
New HVAC Unit, HVAC Unit Install
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New HVAC Unit, HVAC Unit Install
Belmont, NC 28012
Mini Split Unit Installation, Mitsubishi Install
Mini Split Unit Installation, Mitsubishi Install
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Install T. Checked in
Mini Split Unit Installation, Mitsubishi Install
Belmont, NC 28012
Furnace Install, New AC Unit
Furnace Install, New AC Unit
Install T.
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Furnace Install, New AC Unit
Belmont, NC 28012
Belmont, NC - AC tune up and safety check. Air Conditioning maintenance.
Service T.
Service T. Checked in
AC tune up and safety check. Air Conditioning maintenance.
Belmont, NC 28012
Belmont, NC - Mini Split Installation.
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Mini Split Installation.
Belmont, NC 28012