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Dallas, NC HVAC & Home Services

Dallas, NC's Experts in Furnace Repair, HVAC Installation, Duct Cleaning, Insulation, Mold & Crawl Space Services

GSM Services has set itself apart with superior customer service, reliability, and quality of work for over 97 years in Dallas!

Proudly located in Gaston County, we’re your trusted, one-stop shop for complete home comfort solutions. We're a licensed & insured heating & air conditioning, crawl space, insulation, and air duct cleaning company in Dallas, NC.

Why Dallas Trust Us for Home & HVAC Services:

  • ✅ Locally Owned for 97+ Years
  • ✅ Fast & Reliable Service
  • ✅ Affordable, Upfront Pricing
  • ✅ Licensed & Insured Contractor
  • ✅ FREE Service Calls with Repairs
  • ✅ FREE Home Inspections & Quotes
  • ✅ Award-Winning Customer Service
  • ✅ 100% Satisfaction Guarantee
  • ✅ Great Warranties
  • ✅ Financing Options & Deals

Get an Online Quote for HVAC System Replacements & Duct Cleaning Services in Dallas

Get an free online quote for a new HVAC system or duct cleaning—just 30 seconds!

Duct Cleaning Services in Dallas:

Experience cleaner air with our comprehensive duct cleaning! We don’t just clean the vents—we inspect, sanitize, and ensure every part of your duct system is free of dirt and debris. Our service includes a disinfectant treatment to eliminate viruses, bacteria, and spores, ensuring a level of cleanliness that stands above the rest. Get an instant online quote and start enjoying a fresher, healthier home today!

Duct Cleaners in Dallas

We Offer These HVAC & Home Service Call Specials:

  • FREE Furnace Service Calls with Repair
  • FREE System Installation Quotes
  • FREE Home Energy Audits
  • FREE Crawl Space Evaluations
  • FREE Insulation Evaluations
  • Heating & Air Conditioning Services in Dallas, NC:

    Crawl Space, Mold Removal, Insulation, Generators & Other Home Services in Dallas:

    Furnace Repair & HVAC Service Technicians in Dallas, NC

    If your Heating system isn’t working, GSM Services offers fast service and affordable repairs. Our certified HVAC technicians have decades of experience and will inspect your system to find the issue. We provide free service calls with repairs and a written estimate before any work begins, so there are no surprises. We service all types and models, and ensure reliable and cost-effective solutions.

    Heating System Install & Replacement Services in Dallas, NC

    Is your Furnace or HVAC system old or inefficient? Upgrading to a new, energy-efficient system can often save more in the long run than constant repairs. Let our certified team guide you through the latest HVAC technology options for a cost-effective upgrade that enhances comfort and efficiency! Our top-of-the-line units offer exceptional comfort, ultra-quiet operation, and improved air quality, with high-efficiency options that can cut energy costs by up to 30%. Trust our HVAC experts for reliable advice and outstanding service. Call or book online today for a free quote on a new system!

    Cost of a New HVAC System in Dallas, NC:

    Try our system cost calculator to see the cost of replacing your home’s heating & air conditioning system. Simply answer a few questions about your home, and receive a custom quote in just 30 seconds.

    Dallas Crawl Space Repair & Service Contractors

    Searching for reliable crawl space contractors in Dallas, NC? GSM Services offers expert crawl space solutions, including moisture control, insulation, encapsulation, and mold removal. Our team safeguards your home from moisture damage and mold growth, enhancing air quality, improving energy efficiency, and reducing pests in your home. A healthy crawl space also contributes to greater structural stability and comfort. Easily book a free crawl space inspection and quote online today if you're experiencing any issues!

    crawl space repairs dallas nc

    Crawl Space Services & Solutions:

    Home Insulation Company in Dallas, NC

    Looking for a trusted home insulation company in Dallas, NC? GSM Services specializes in high-quality insulation solutions that improve energy efficiency, reduce utility costs, and enhance indoor comfort. Our expert team provides professional insulation installation, helping keep your home comfortable year-round. Serving Dallas and surrounding areas, we’re committed to delivering reliable, energy-saving solutions for every home. Contact us today for a free insulation inspection and quote!

    Types of Insulation
    • Blown-in Fiberglass
    • Blown-in Cellulose
    • Rigid Foam
    • Injection Foam
    • Radiant Barrier
    • Sealing Air Leaks
    • Air Duct Sealing
    Areas of Home
    • Attic Insulation
    • Basement Insulation
    • Crawl Space Insulation
    • Garage Insulation
    • Wall Insulation
    • Floor Insulation
    • Ductwork Insulation
    Photo Galleries From Dallas

    Finished project

    Finished project

    Crawl Space Encapsulation Completed

    News & Events From from Dallas
    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 Dallas, NC
    • Project Location: Dallas, NC
      My AC is not working like it should. Came home yesterday to my house 78 degrees, it was set for 73. It was blowing out but not cool air. Changed my filter. When I woke up this AM it had came down to 75 degrees. Thanks
    • Project Location: Dallas, NC
      You do my every 6 month service. My indoor part of my ac is leaking water so it's off and I have no ac. I want to replace my whole heating and air system so that it's all outside. It's a 4 ton unit and you have all the info on it. I need a cost please
    • Project Location: Dallas, NC
      Tune up/system service for summer
    • Project Location: Dallas, NC
      Estimate on Geothermal Heat Pump Installation
    • Project Location: Dallas, NC
      My outside unit is old and has been going out. I've had a lot of work done on it over the years, but I feel it is time to replace the unit. I can't afford to pay upfront and was wondering if you have financing available?
    • Project Location: Dallas, NC
      Hello, recently I had another business come and replace a fan motor and blade on an HVAC unit. It is now been making a very loud noice when turned on. The other business said they tried everything to quiet it down but they couldn't stop it or make it quieter. How much does it cost to come and look at the unit?We do need to replace our units they are 20 years old but I am unsure we can afford it right now. Thank you.
    • Project Location: Dallas, NC
      Coils need to be cleaned, AC much cooler downstairs than up. Additional information: Date requested: 05/25/2020
    • Project Location: Dallas, NC
      Looking to get a mini split system installed
    • Project Location: Dallas, NC
      I just wanted to get a quote for duct cleaning for single story house. 10 vents, 1 return , was told that there are 3 main ducts under house instead of one main with ducts branching off. Please email me with a quote. Thank you
    • Project Location: Dallas, NC
      Schedule a pre-paid cooling precision tune-up
    • Project Location: Dallas, NC
      Generac full home generator assessment, quote, installation & service.
    • Project Location: Dallas, NC
      Moisture and water intrusion in my crawl space
    • Project Location: Dallas, NC
      I was interested in obtaining an estimate for maintenance for my a/c unit. As of right now, I do not have it serviced regularly but would like to if it is not too expensive.
    • Project Location: Dallas, NC
      2 items. At the moment, my air is not functioning very well - may be low on freon and needing a recharge, at least it feels that way. Also, I'd like to get an estimate on a new heat pump split system. My current system is 20+ years old so it's way past time. Probably won't need new duct work, but it's possible they would need to be sealed up some. Thanks.
    • Project Location: Dallas, NC
      We just bought a home and would like to have the hvac serviced to make sure it runs well through the summer.
    • Project Location: Dallas, NC
      Our utilities bill is too high and want to reduce it.
    • Project Location: Dallas, NC
      No heat. May be self-inflicted. Tried to replace the thermostat and now neither heat or a/c will come on. Rudd heat pump / ac unit less than 1 year old. Can we get service today? Tenants will need heat tonight. Thanks!
    • Project Location: Dallas, NC
      Like to know that cost of duct cleaning
    • Project Location: Dallas, NC
      Follow up Inquiry for crawlspace rennovation. Checking in again about pricing options. We've spoken previously about these matters.
    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 Crouse
Before
After

Duct Cleaning Filter in Crouse, NC


Before
After

Heating Tune Up in Crouse, NC

Company Awards

2023 Community Choice Award Winner - Best of Gaston

2023 Community Choice Award Winner

GSM Services was voted Best Heating & AC Company & Best Home Service Company in the county.


2022 Best of Gaston

Best of Gaston 2022

GSM Services won Best Heating & Cooling Company, Top Place To Work, & Best Home Service Company


Best Contractor to Work For

2021 Best Contractor to Work For - ACHR News

GSM Services was named 2021 Best Contractors to Work for by National ACHR News



2021 Best of Gaston

Best of Gaston 2021

GSM Services won Best Heating & Cooling Company, Top Place To Work, & Best Home Service Company


Best of Gaston 2020

Best of Gaston 2020

GSM Services was incredibly honored to win Best HVAC Company, Best Roofing, Best Customer Service, Best Home Service Company


top place to work charlotte

Top Place to work Charlotte 2019

GSM was voted as one of the top places to work in 2019 by the Charlotte Observer.


2019 Best of Gaston

Best of Gaston 2019

Best of Gaston 2019 Winner for Best Heating & Air Conditioning Company and also Best Home Repair Company


Recent Jobs and Reviews in Dallas, NC

Job Locations and Reviews

Insulation Call, Performed an installation of new insulation to the attic
Insulation Call, Performed an installation of new insulation to the attic
Install T.
Install T. Checked in
Insulation Call, Performed an installation of new insulation to the attic
Dallas, NC 28034
Dallas, NC - Generator Call, Performed a new installation of a Generac generator
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Install T. Checked in
Generator Call, Performed a new installation of a Generac generator
Dallas, NC 28034
AC Call, Performed a changeout of a Gaspack
AC Call, Performed a changeout of a Gaspack
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Install T. Checked in
AC Call, Performed a changeout of a Gaspack
Dallas, NC 28034
Guttering Call, Performed a Gutter Cleaning
Guttering Call, Performed a Gutter Cleaning
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Guttering Call, Performed a Gutter Cleaning
Dallas, NC 28034
Crawlspace Call, Performed an encapsulation of the crawlspace
Crawlspace Call, Performed an encapsulation of the crawlspace
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Install T. Checked in
Crawlspace Call, Performed an encapsulation of the crawlspace
Dallas, NC 28034
Guttering Call, Performed an installation of Gutter Guards
Guttering Call, Performed an installation of Gutter Guards
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Install T. Checked in
Guttering Call, Performed an installation of Gutter Guards
Dallas, NC 28034
Heat Pump Call, Installed a new Goodman Heat Pump in crawl space
Heat Pump Call, Installed a new Goodman Heat Pump in crawl space
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Install T. Checked in
Heat Pump Call, Installed a new Goodman Heat Pump in crawl space
Dallas, NC 28034
Unit Changeout Call, Performed an installation of a new furnace and AC system
Unit Changeout Call, Performed an installation of a new furnace and AC system
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Install T. Checked in
Unit Changeout Call, Performed an installation of a new furnace and AC system
Dallas, NC 28034
Dryer Vent Call, Performed an installation of a new Dryer Vent.
Dryer Vent Call, Performed an installation of a new Dryer Vent.
Install T.
Install T. Checked in
Dryer Vent Call, Performed an installation of a new Dryer Vent.
Dallas, NC 28034
A/C Call, Performed a changeout of a Goodman Furnace & A/C Unit.
A/C Call, Performed a changeout of a Goodman Furnace & A/C Unit.
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Install T. Checked in
A/C Call, Performed a changeout of a Goodman Furnace & A/C Unit.
Dallas, NC 28034
Insulation Call, Performed an installation of a Santa Fe Dehumidifier and re-insulation of the floor
Insulation Call, Performed an installation of a Santa Fe Dehumidifier and re-insulation of the floor
Install T.
Install T. Checked in
Insulation Call, Performed an installation of a Santa Fe Dehumidifier and re-insulation of the floor
Dallas, NC 28034
AC & Furnace Call, Before and After of a Furnace Changeout
AC & Furnace Call, Before and After of a Furnace Changeout
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Install T. Checked in
AC & Furnace Call, Before and After of a Furnace Changeout
Dallas, NC 28034
Install T.
Install T. Checked in
Duct Cleaning call, Performed duct cleaning on 13 vents and 1 return
Dallas, NC 28034
Insulated Crawl Space Door, New Crawlspace door under home
Insulated Crawl Space Door, New Crawlspace door under home
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Install T. Checked in
Insulated Crawl Space Door, New Crawlspace door under home
Dallas, NC 28034
Dallas, NC - Furnace Repair.
Service T.
Service T. Checked in
Furnace Repair.
Dallas, NC 28034