Expert Furnace Repair, HVAC Installation, Insulation, Crawlspace and Duct Cleaning Services in Fort Mill

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

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Why Locals Choose GSM Services:

✅ Fast, Affordable & Reliable
✅ Licensed and Insured
✅ Locally Owned for 98+ 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

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New HVAC System Cost & Duct Cleaning Prices in Fort Mill

Need HVAC or duct cleaning? Get your free instant quote online in just 30 seconds!

HVAC INSTALLATION

DUCT CLEANING

DRYER VENT CLEANING

Heating & Cooling Services in Fort Mill:

Crawl Space, Insulation, Generators & Other Home Services in Fort Mill:

Furnace Repair in Fort Mill

If your Heater isn’t working, trust GSM Services for fast, affordable Furnace repair in Fort Mill. 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.

HVAC Replacement & Install Experts

Looking for a New Heating System? Our licensed HVAC installers in Fort Mill 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!

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Certified on 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

Fort Mill Crawl Space Repair & Service Contractors

GSM Services provides professional crawl space services in Fort Mill. Our team protects your home from moisture damage and mold, enhancing air quality, boosting energy efficiency, and reducing pests. A well-maintained crawl space also strengthens structural stability and overall comfort. Book a free crawl space inspection and quote online today!

Crawl Space Solutions:

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Duct Cleaning Services in Fort Mill:

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 Service Company in Fort Mill:

GSM Services is your trusted local insulation company in Fort Mill. 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!

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Photo Galleries From Fort Mill

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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]

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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