Furnace Repair, HVAC Replacement & Installation Services in Fort Mill, SC
For 99 years, GSM Services has provided Furnace repair, Furnace replacement, HVAC maintenance, and new heating & cooling system installation in Fort Mill, SC. Our certified technicians deliver fast, reliable service, quality workmanship, and honest, fair pricing. We're proud to have been voted Best Heating & Cooling Company for the past 10 years! We also offer insulation, duct cleaning, and crawlspace services to improve comfort, air quality, and energy efficiency. Enjoy easy booking, instant online quotes, and free service calls with any repair!
Why Locals Choose GSM Services:
- ✅ Fast, Affordable & Reliable
- ✅ Licensed and Insured
- ✅ Locally Owned for 99+ Years
- ✅ Voted Best Heating & Cooling Company
- ✅ 100% Guaranteed Satisfaction
- ✅ Outstanding Warranties
- ✅ Unbeatable Financing for Any Budget
- ✅ FREE HVAC Service Calls with Repairs
- ✅ FREE System Quotes
- ✅ FREE Insulation, Crawlspace and Home Energy Audits
How Much Does a New Heating & Cooling System Cost in Fort Mill, SC?
The cost of a new HVAC system in Fort Mill, SC typically ranges from $8,000 to $20,000+ in 2026, depending on the size of your home, the efficiency of the system, ductwork requirements, and installation complexity.
Want to know what a new Furnace may cost for your home? Use our HVAC Cost Calculator to get instant Heating System replacement pricing in Fort Mill, SC. Compare system options, estimated monthly payments, and personalized HVAC installation costs in minutes—before scheduling an in-home consultation.
Duct Cleaning & Heating System Prices in Fort Mill, SC
Get your free instant quote online in just 30 seconds!
Heating & Cooling Services in Fort Mill, SC:
Crawl Space, Insulation, Generators & Other Home Services We Offer in Fort Mill, SC:
Furnace Repair in Fort Mill, SC
If your Heater isn’t working, trust GSM Services for fast, affordable Furnace repair in Fort Mill, SC. Our licensed HVAC technicians service all makes and models, provide expert solutions, and offer clear, upfront pricing with no hidden fees. We also include a free service call with any repair.
Furnace Replacement & Installation in Fort Mill, SC
Looking for a New Heating System? Our licensed HVAC installers in Fort Mill, SC 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 HVAC options and help you choose the right system for improved comfort, quieter operation, and cleaner indoor air. Book online today for a free, no-obligation consultation and quote!
Certified Service for All Types of Heating & Cooling Systems
- Central Heating & Air Conditioning Systems
- Ductless Mini Splits
- Package Systems
- Heat Pump Systems
- Gas furnaces
- Oil furnaces
- Electric Furnaces
HVAC Duct Cleaning Services in Fort Mill, SC:
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!
Insulation Services in Fort Mill, SC:
GSM Services is your trusted local insulation company in Fort Mill, SC. We provide high-quality, affordable home insulation for attics, walls, crawl spaces, basements, floors, garages and more. Our certified experts use various insulation types to fit your home and budget, helping reduce energy bills and improve comfort and air quality year-round. Experiencing uneven temperatures or high utility costs? Schedule your free insulation inspection today! We’ll assess current insulation, check for air leaks or moisture issues, and provide a custom, no-obligation quote for your home. Call or book online now!
Photo Galleries From Fort Mill
TRUComfort installation
News & Events From from Fort Mill
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]
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 Fort Mill, SC
- Project Location: Fort Mill, SC
Need estimate on attic insulation. - Project Location: Fort Mill, SC
Need to upgrade 5 inches settled cellulose to r30-r40 in 1800 sq feet attic. And talk about sealing in order to qualify for duke power rebate. You were listed as one of thier contractors. Need a ballpark estimate to start with. - Project Location: Fort Mill, SC
Outside Ac unit is running , but not cooling the home . Also interested in possibly purchasing a new unit . 1- need Ac looked at 2- interested in a new unit - Project Location: Fort Mill, SC
Would like to set up an appointment for someone to come and look at our upstairs unit as it doesn't seem to be running properly. - Project Location: Fort Mill, SC
Reduce heat in attic to help preserve HVAC System. Also to insulate attic door and other insulation areas. - Project Location: Fort Mill, SC
I think the fan motor is going out in my AC unit. - Project Location: Fort Mill, SC
Would like to keep attic space cool and make an additional living space. - Project Location: Fort Mill, SC
Insulation for eve in finished room above garage. Desire to moderate the temperature in both winter and summer. - Project Location: Fort Mill, SC
Duke Energy referred me to you for a new AC install. I would like to speak with someone at my house about options and an estimate. Please contact me as soon as possible as I would like the install to be completed in the next few weeks. Thank you very much. - Project Location: Fort Mill, SC
Finishing my basement. - Project Location: Fort Mill, SC
Have bought this house about a month ago and would like to get all the duct work in attic replaced - thank you, noble - Project Location: Fort Mill, SC
I need to have the attic insulation evaluated. - Project Location: Fort Mill, SC
Our heating has a weird smell when we turn it on, and our upstairs loft and bathroom fans don't seem to be working - Project Location: Fort Mill, SC
AC seems to be not generating cold air Additional information: Date requested: 09/29/2017 - Project Location: Fort Mill, SC
There is brown water stain around the air vent in our kitchen. Need diagnosis to identify where the leak is coming from. The house is a one story with an attic above. - Project Location: Fort Mill, SC
Looking to get an estimate for insulating a walk out basement - Project Location: Fort Mill, SC
Just bought house and want to schedule a tune up of hvac - Project Location: Fort Mill, SC
Air condition isn't working at optimal - Project Location: Fort Mill, SC
Looking to replace downstairs 3 ton AC unit. Looking for an estimate on cost. - Project Location: Fort Mill, SC
Looking for a quote to replace 2 AC units - one 2.5 ton unit and one 3 ton unit
See all work requests
Serving the following Fort Mill, SC zip codes
29707, 29708, 29715, 29716, 29707, 29708, 29715, 29716
Products & Services
HVAC Systems
- air conditioning company
- air conditioning systems
- HVAC Replacements
- 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
- AC installation
- AC repair
- heat pump installation
- heat pump repair
Crawl Space Repairs
- crawl space encapsulations
- crawl space vapor barrier
- crawl space cleanings
- 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 Fort Mill
New Gas Heating and Air Conditioning system in Fort Mill
Company Awards
2026 Best Heating & AC Company
GSM Services Named 2026 Best of Gaston Winner for Best Heating & Cooling Company.
2025 Best Heating & Cooling Company
GSM Voted 2025 Community Choice Award Winner.
2024 Community Choice Award Winner
Voted Best Local HVAC Company in 2024.
2023 Community Choice Award Winner
Voted Best Heating & AC Company & Best Home Service Provider in the county.
Best of Gaston 2022
GSM Services won Best Heating & Cooling Company and Top Place To Work in the County!
Best Contractor to Work For - ACHR News
Named Best Contractor to Work For by ACHR News, a leading national industry publication in 2021.
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 Fort Mill, SC
Fort Mill, SC at a glance
GSM Services has completed 10 jobs in Fort Mill, SC between December 2021 and October 2024.
The most recent job was on October 22, 2024.
GSM Services completed its first job in Fort Mill, SC in December 2021.
Job Locations and Reviews
AC Call, Performed a Furnace and S-Series AC changeout
Heat Call, Performed a changeout of Gas furnace
Ductwork Call, Performed an installation of new ductwork
Furnace Call, Performed a changeout of a package unit
Package unit call, Performed an installation of a package unit and enlarged return duct.
AC & Furnace Replacement, Performed Goodman AC & Heater Replacement
Crawlspace Call, Performed Full Crawlspace Encapsulation
New HVAC unit install, Heating and Cooling unit installation
Generator Tune Up. Generac Generator in Fort Mill, South Carolina.
Generac generator installation.