Top HVAC Pros in Stanley NC

AC Repair, Air Conditioning Installation, Crawlspace, Insulation & HVAC Duct Cleaning Services in Stanley NC

GSM has set itself apart with superior customer service, reliability, and quality of work for over 98 years in Stanley NC.

We're a licensed & insured heating & cooling, crawl space, insulation & HVAC Duct Cleaning contractor in Stanley NC that offers a 100% satisfaction guarantee.

Get an Online Quote for HVAC System Installations & Duct Cleaning Services in Stanley NC

Need a new Air Conditioning system or duct cleaning services? Get your free instant quote online in seconds!

Heating & Cooling Services in Stanley NC:

Crawl Space, Mold, Generators & Other Home Services we Offer:

AC Repair in Stanley NC

If your Air Conditioner isn’t working, GSM Services offers fast, affordable AC repair services. Our licensed HVAC technicians service all makes and models, provide expert options, and offer clear, upfront pricing with no hidden fees. We also include a free service call with any repair.

HVAC System Installation Experts in Stanley NC

Looking for a New Air Conditioning System? Our licensed HVAC installers in Stanley NC are certified experts in energy-efficient heating & cooling systems that can lower your energy bills by up to 30%. We’ll walk you through the latest AC options and help you choose the right system for improved comfort, quieter operation, and cleaner indoor air. Call or book online today for a free, no-obligation consultation and quote!

Home Insulation Services

Looking for a trusted insulation company in Stanley, NC? GSM Services provides professional home insulation solutions that improve energy efficiency, reduce utility bills, and keep your home comfortable year-round. Our certified energy and insulation experts can evaluate your home and offer solutions to boost comfort, improve indoor air quality, and lower energy bills. Call or book online to get your free insulation inspection!

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

Crawl Space Restoration in Stanley, NC

If you’re dealing with moisture, mold, or structural issues, we can help. Our team transforms problem crawl spaces into clean, energy-efficient areas. Book your 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. Some of the crawl space services we offer are Whole Home Dehumidifiers, Crawl Space Encapsulations, Vapor Barrier, Crawl Space Insulation, Crawl Space Cleaning & Air Sealing, Sump Pumps, Crawl Space Mold Removal, Crawl Space Door Replacements, and much more. Schedule your Free Inspection today!

Press Releases From Stanley

This past Friday, April 29, GSM Services had thirty 8th grade students visiting from Stanley Middle School as part of the first-ever Students@Work Day, a program partnership between Gaston County Schools and the Gaston Regional Chamber. More than 300 middle school students from the county's 11 middle schools were paired with an area business.... [Read more]

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Job Stories From Stanley, NC
HVAC Heating and Air Conditioning Replacement and Installation

This customer was in need of a new furnace and air conditioning system for their home. They had two units outside but only one needed to be updated for comfort, energy effiency to save the customer the most on their utility bills. After evaluating their whole home and taking a look to provide the customer with the best options, the customer decided to install a complete new GSM TruComfort heating and cooling system.

Work Requests From Stanley, NC
  • Project Location: Stanley, NC
    Dirty air duct
  • Project Location: Stanley, NC
    I have an upstairs A/C central air unit that needs to be replaced. I'm looking to get an estimate.
  • Project Location: Stanley, NC
    I need an estimate for dryer vent cleaning. Our laundry is on the second floor and vents to the side of the house, but about 15-20 feet from laundry room.
  • Project Location: Stanley, NC
    Crawl space vapor barrier and drainage.
  • Project Location: Stanley, NC
    Just wanted to schedule my cooling tune-up.
  • Project Location: Stanley, NC
    Water/Moisture in crawl space, fungus, compromised floor joist, etc. Also, rust in gas pack - cracked heat exchange? I am realtor representing a buyer we need an estimate for repairs asap.
  • Project Location: Stanley, NC
    Hello, I have moisture/condensation on the ductwork that was installed when your crew replaced my unit in Dec. It is flex duct. At the time, I was told that is would be replaced later with metal. I understand that flex is now widely used and that is fine but it is not sealed well. Very cool under the home with the ac on and like I stated there is condensation on the duct. Has to be leaking some.
  • Project Location: Stanley, NC
    Air Conditioner is not keeping the house cool.
  • Project Location: Stanley, NC
    I just need a system maintenance and check possible duct cleaning Additional information: Date requested: 04/13/2020
  • Project Location: Stanley, NC
    Cooling check up
  • Project Location: Stanley, NC
    Our downstairs AC unit is over 19 years old and is having trouble cooling during the hottest part of the day. We are looking for quotes for replacing the system.
  • Project Location: Stanley, NC
    Estimate on replacing a residential heat/ac unit.
  • Project Location: Stanley, NC
    Looking for a service on my AC unit. AC isn't cooling and the pipes are frozen. Believe that it needs a recharge.
  • Project Location: Stanley, NC
    Need a free consultation
  • Project Location: Stanley, NC
    Heat pump is not defrosting
  • Project Location: Stanley, NC
    Need HVAC check up. Thanks, Travis
  • Project Location: Stanley, NC
    Est. on whole home generator
  • Project Location: Stanley, NC
    Hi, im looking for a free estimate for central air and heat for a 950 sq house. We currently use a window unit for air and heat. Under the house there is duck work that seems to be intact and a old old unit beside house that doesn't work. Call before you come out to our home. Thanks! Phyllis Harding
  • Project Location: Stanley, NC
    Need to talk about whole house generator.
  • Project Location: Stanley, NC
    Have an extraordinary amount of dust/dirt which requires constant cleaning/dusting.
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 Stanley
Before
After

This homeowner in Stanley, NC needed their Heat Pump replaced. Our team of experts replaced the old heat pump with new energy efficient TruComfort System.


Before
After

On this job in Stanley, NC we came across a damp crawl space that created high levels of mold. We took the steps necessary to remove all signs of mold growth and to protect the crawl space from any future growth.


Before
After

GSM Services replaced a gas air conditioner and furnace with a high efficiency GSM TruComfort Signature system.

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 Stanley, NC

Job Locations and Reviews

Crawlspace Call, Installation of new floor insulation in the crawlspace
Crawlspace Call, Installation of new floor insulation in the crawlspace
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Crawlspace Call, Installation of new floor insulation in the crawlspace
Stanley, NC 28164
AC Call, Performed an installation of a new Amana system
AC Call, Performed an installation of a new Amana system
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AC Call, Performed an installation of a new Amana system
Stanley, NC 28164
Stanley, NC - Ductwork Call, Performed a duct cleaning
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Ductwork Call, Performed a duct cleaning
Stanley, NC 28164
Guttering Call, Performed an installation of Gutter Guards
Guttering Call, Performed an installation of Gutter Guards
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Guttering Call, Performed an installation of Gutter Guards
Stanley, NC 28164
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
Stanley, NC 28164
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Crawlspace Call, Performed yearly crawlspace maintenance
Stanley, NC 28164
Stanley, NC - Crawlspace Encapsulation, New Crawlspace
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Crawlspace Encapsulation, New Crawlspace
Stanley, NC 28164
Stanley, NC - Crawlspace Encapsulation, New crawlspace door
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Crawlspace Encapsulation, New crawlspace door
Stanley, NC 28164
Generator Installation, New Generator
Generator Installation, New Generator
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Generator Installation, New Generator
Stanley, NC 28164
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Stanley, NC 28164
Stanley, NC - New Outside Unit, Outside Unit Replacement
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New Outside Unit, Outside Unit Replacement
Stanley, NC 28164
New Dryer vent , Dryer vent replacement
New Dryer vent , Dryer vent replacement
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New Dryer vent , Dryer vent replacement
Stanley, NC 28164
Stanley, NC - Attic Insulation. Attic Repair. Blown In Insulation.
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Attic Insulation. Attic Repair. Blown In Insulation.
Stanley, NC