- Furnace Installation
- Furnace Repair
- Furnace Safety Check
- Heating & Furnace Tune Ups & Maintenance
- AC Installation
- Air Conditioner Repair
- AC Tune Ups & Maintenance
- Heat Pump Repair, Installation, & Service
- Ductless Mini Splits
- Thermostat Installation, Repair & Replacement
- Ductwork Repair, Replacement, Installation
- Freon & AC Recharge
- Air Duct Cleaning
- Ductless Mini Split Installation & Repair
- Instant Quote on New HVAC System
Mount Holly, NC HVAC & Home Services
AC Installation & Repair, HVAC Duct Cleaning, Insulation, Mold Removal & Crawlspace Service Experts in Mount Holly, NC
GSM Services has set itself apart with superior customer service, reliability, and quality of work for over 97 years in Mount Holly, NC!
We are your one stop shop for home comfort solutions. We're a licensed & insured heating & air conditioning contractor, hvac duct cleaning, crawl space experts, & insulation pros in Mount Holly. We help people live better through improved home comfort, air quality, and energy efficiency.
If you are in need of repair, installation, tune up, or any other heating & cooling, crawl space, insulation, home mold solutions, or air duct cleaning services you are in the right place!
Get an Online Quote for HVAC Installations & Duct Cleaning Services in Mount Holly
Try our free, online price calculators. Get a quote for your home in 30 seconds!
We Offer The Following Home & HVAC Service Calls in Mount Holly, NC:
- FREE AC Service Calls with Repair
- FREE Home Energy Audits
- FREE Crawl Space Evaluations
- FREE Insulation Evaluations
- FREE Instant Quote On New HVAC Systems
Heating & Air Conditioning Services Provided in Mt. Holly:
Crawl Space, Insulation, Mold Removal, & Other Home Services in Mt. Holly:
AC Repair, Installation, & Service Company
Here at GSM Services, our skilled technicians can inspect your heating & cooling system and provide services to service, repair or replace your HVAC system and keep your home comfortable. We service all brands and models of central Air Conditioning and ductless air conditioners & Heaters.
Our Heating & Air Conditioning Services Include:
- Furnace & AC Tune-ups, Safety Checks & Maintenance
- Air Conditioner & Furnace Repairs
- Air conditioning & Heating System Replacement & Installation
- Refrigerant & Freon Refills
- Thermostat Repair & Installations
- Ductless Mini Split Heat Pumps
- Central Air Conditioning & Heating Services
AC Installation & HVAC Replacement Experts
If your Air Conditioning is old or your bills seem too high, replacing your AC may be the best option. Our certified and highly trained team of AC installation professionals can provide a thorough inspection of your unit to help you make that decision. Our skilled experts can replace all types of HVAC systems with high-quality and energy efficient models that are guaranteed to lower your energy bills by as much as 30%. Trust our Air Conditioner installation professionals to provide you with reliable services every step of the way. Call or click today to schedule your FREE AC installation estimate!
Crawl Space Repair Services in Mt Holly, NC
Welcome to GSM Services – the leading experts in crawl space restoration and repair. Is your crawl space causing issues such as moisture, mold, or structural damage? Don't worry; you're in the right place. We specialize in turning crawl space nightmares into healthy, functional, and energy-efficient spaces. We offer FREE Crawl Space Inspections. 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!
Home Insulation Company in Mt Holly, NC
We offer many insulation services such as insulation removal & insulation installation. As a full-service insulation contractor, GSM Services provides services to improve areas such as walls, crawl spaces, basements, and garages.
If you are in need of insulation services, let us perform a free inspection at your home! We will check the insulation levels, moisture levels, check for air leaks, inspect duct work, look for any growth, issues and more! We will take pictures of any concerns and give you a free, no obligation quote to offer solutions. At GSM Services, we are Mount Holly's trusted, local insulation company.
Types of Insulation
- Blown-in Insulation
- Cellulose
- Foam
- Injection Foam
- Radiant Barrier Insulation
- Sealing Air Leaks
- Air Duct Sealing
Areas of Home
- Attic Insulation
- Basement Insulation
- Crawl Space Insulation
- Garage Insulation
- Wall Insulation
- Floor Insulation
- Ductwork Insulation
Free Home Energy Audits
A highly trained & certified energy advisor will do a full evaluation of your home, attic, and crawl space. They will check for air leaks, use thermal imaging, check insulation levels, look for air quality issues, growth, moisture levels and much more! Your comfort advisor will take pictures of any issues that they find. After the audit they will go over the findings with you and discuss any solutions that may help the comfort level, health, efficiency, and environment of your home.
Home Energy Audits Include:
- Air Leak Inspection
- Thermal Image Scanning
- Crawl Space Inspection
- Blower Door Test
- Insulation Inspection
- Air Quality Check
- Mold Growth Check
- Humidity Level Check
Photo Galleries From Mount Holly
High efficiency GSM TruComfort air conditioner installation.
Trucomfort hybrid split system installation
Job Stories From Mount Holly, NC
New Installation Multiple Furnace Systems - Local Church
From residential to light commercial our residential heating and cooling division will help keep your home or business comfortable. We recently completed a 5 unit furnace installation at a local Church in Mount Holly, NC.
Give GSM a call for a free estimate for new installations on heating and cooling systems for light commercial and residential homes.
Work Requests From Mount Holly, NC
- Project Location: Mount Holly, NC
Dryer isn't drying well, but it gets hot. Thinking I may need to have the dryer vent cleaned. Thanks! Additional information: Date requested: 09/08/2021 - Project Location: Mount Holly, NC
We would like to start having regular cleaning and maintenance. - Project Location: Mount Holly, NC
Looking for a spray foam quote in attic space. Also, the removal of current blown fiberglass. - Project Location: Mount Holly, NC
1. Regular service - need filter replaced in my AC unit. I would like to set up the ESA for tune-ups in spring/summer and fall/winter for 2020. Service tech will require a ladder as my unit is in my attic. 2. AC is struggling to cool the past few days. Would like it inspected as part of regular service. Would like to set up inspection for Monday 6/8 in the afternoon or Wednesday 6/10 in the morning. Additional information: Date requested: 06/08/2020 - Project Location: Mount Holly, NC
Summer tune up - Project Location: Mount Holly, NC
Would like to get a quote for replacing a 5 ton heat pump at our shop facility. - Project Location: Mount Holly, NC
HEATING SYSTEM WON'T COME ON - Project Location: Mount Holly, NC
I need a air conditioner for our half basement - Project Location: Mount Holly, NC
Air-conditioning fan on outside unit will turn on but no air is coming through vents inside the house - Project Location: Mount Holly, NC
Two units upstairs aren't cooling - Project Location: Mount Holly, NC
Need new equipment for HVAC on main level of home - Project Location: Mount Holly, NC
I need someone to come and service my Mitsubishi outside unit. I believe there might be a leak. - Project Location: Mount Holly, NC
Would like estimate on replacing existing AC - Project Location: Mount Holly, NC
Heat pump is functioning but makes a lot of noise that's audible from inside the wall. Does not make noise when just the fan is running. Additional information: Date requested: 03/14/2019 - Project Location: Mount Holly, NC
Interested in a quote for a whole house standby generator. - Project Location: Mount Holly, NC
Looking at replacement HVAC system - Project Location: Mount Holly, NC
Need the furnace replaced for the bonus room over the garage. The a/c part of the unit still works. thanks! - Project Location: Mount Holly, NC
Need quote for new HVAC. Current system won't cool when outside temp is above 80. - Project Location: Mount Holly, NC
My AC unit iced over. Additional information: Date requested: 06/25/2018 - Project Location: Mount Holly, NC
Bonus room surrounded by attic space. Room temp climbs to upper 70's when outside temp gets to upper 80's. Air temp coming out of vents is 58-59 at night but climbs to 68-70 once outside temp gets to upper 80's. Concerned about duct leakage and general temp and ventilation of attic.
See all work requests
Serving the following Mount Holly, NC zip codes
28012 & 28120
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 Mount Holly
Before
After
Before and After Condenser Cleaning
Company Awards
2023 Community Choice Award Winner
GSM Services was voted Best Heating & AC Company & Best Home Service Company in the county.
Best of Gaston 2022
GSM Services won Best Heating & Cooling Company, Top Place To Work, & Best Home Service Company
2021 Best Contractor to Work For - ACHR News
GSM Services was named 2021 Best Contractors to Work for by National ACHR News
Best of Gaston 2021
GSM Services won Best Heating & Cooling Company, Top Place To Work, & Best Home Service Company
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 2019
GSM was voted as one of the top places to work in 2019 by the Charlotte Observer.
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 Mount Holly, NC
Job Locations and Reviews
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Outdoor unit cleaning before and after
Mount Holly, NC 28120
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Air Conditioner Cleaning before and after
Mount Holly, NC 28120
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Attic Insulation Before and After
Mount Holly, NC 28120
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20 Mil Crawl Space Encapsulation with mold removal
Mount Holly, NC 28120
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Crawl Space Door Replacement
Mount Holly, NC 28120
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Generator Call, Performed an installation of a new Generac generator
Mount Holly, NC 28120
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Furnace Call, Performed an installation of a new furnace
Mount Holly, NC 28120
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Crawl Space Call, Performed an installation of a Sante Fe Dehumidifier
Mount Holly, NC 28120
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Heat Pump Call, Performed a changeout of a heat pump
Mount Holly, NC 28120
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Guttering Call, Performed an installation of gutters
Mount Holly, NC 28120
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Package unit call, Performed an installation of a new package unit
Mount Holly, NC 28120
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Package Unit Call, Performed an installation of a Goodman Package Unit.
Mount Holly, NC 28120
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Dryer Vent Call, Before and After of a Dryer Vent Cleaning
Mount Holly, NC 28120
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AC call, Installed a new S Series Amana Unit
Mount Holly, NC 28120
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Furnace & AC Install, TruComfort AC & Furnace Installation
Mount Holly, NC 28120
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Mini Split AC Installation. AC install.
Mount Holly, NC 28120
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Amana AC Install. New Air Conditioning Unit.
Mount Holly, NC 28120