Furnace Repair, HVAC Replacement & Installation in Tega Cay, SC

For 99 years, GSM Services has provided Furnace repair, Furnace replacement, HVAC maintenance, and new heating & cooling system installation in Tega Cay, 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 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 99+ Years
✅ Voted Best Heating & Cooling Company
✅ 100% Guaranteed Satisfaction
✅ Outstanding Warranties
✅ Unbeatable Financing for Any Budget
✅ FREE HVAC Service Calls with Repairs
✅ FREE Online HVAC System Quotes
✅ FREE Insulation, Crawlspace and Home Energy Audits

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How Much Does a New Heating & Cooling System Cost in Tega Cay, SC?

The cost of a new HVAC system in Tega Cay, 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 Tega Cay, SC. Compare system options, estimated monthly payments, and personalized HVAC installation costs in minutes—before scheduling an in-home consultation.

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Duct Cleaning & Heating System Prices in Tega Cay, SC

Get your free instant quote online in just 30 seconds!

HVAC INSTALLATION

DUCT CLEANING

DRYER VENT CLEANING

Heating & Cooling Services in Tega Cay, SC:

Crawl Space, Insulation, Generators & Other Home Services We Offer in Tega Cay, SC:

Furnace Repair in Tega Cay, SC

If your Heater isn’t working, trust GSM Services for fast, affordable Furnace repair in Tega Cay, 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 Tega Cay, SC

Looking for a New Heating System? Our licensed HVAC installers in Tega Cay, 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!

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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 Tega Cay, 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 Tega Cay, SC:

GSM Services is your trusted local insulation company in Tega Cay, 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!

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Work Requests From Tega Cay, SC

Project Location: Fort Mill, SC
I have 2 Goodman HVAC units little over 15 years old looking to upgrade/replace one unit possibly both
Project Location: Fort Mill, SC
Replace 2-ton HVAC system
Project Location: Fort Mill, SC
Looking for a spray foam quote in attic space. Also, the removal of current blown fiberglass.
Project Location: Fort Mill, SC
We have an unconditioned attic storage area. Is it possible to condition it? Thank you, Jan
Project Location: Tega Cay, SC
Would like an estimate for replacement of insulation in basement and attic ....
Project Location: Fort Mill, SC
We have a one-car garage attached to our home and want to turn into a livable space. I'd like to get a quote to install a mini-split system and blow insulation into walls (and probably attic, i have looked, but assuming there isn't insulation in either). Would also like a quote to perform annual HVAC service (we have a 4500 sq. ft home with two systems, home built ~2-3 years ago)
Project Location: Tega Cay, SC
Our heat went out Saturday evening. It's an older Goodman unit - at least a dozen years old. It has a small freon leak and we've had both the AC and heat portions of our HVAC system repaired twice since we took ownership of this home 18 months ago. Interested in possible replacement.
Project Location: Tega Cay, SC
Would like to conduct a home energy audit and get recommendations on making it more efficient.
Project Location: Tega Cay, SC
Hello. My house resides on stilts and the cold winter air comes up through the floor. I just recently purchased this home and don't believe the insulation has been replaced in decades. I'd really love to have someone come see what can be done to help me out. Thanks
Project Location: Tega Cay, SC
One side of house on 2nd floor cooler than other. Would like a quote to add more blown insulation and take advantage of free energy audit.
Project Location: Fort Mill, SC
We had a house fire 5 months ago...we replaced the entire roof... 900 sq foot ranch house made in 1965. We put in a new vaulted ceiling in the kitchen and living room... currently we have NO insulation in the attic - roof area. I would like an estimate on doing our attic and roof insulation. We are in Fort Mill, SC Thanks a lot. Ray
Project Location: FORT MILL, SC
Upstairs A/C unit is not operating correctly, running continuously and not reaching set point. Additional information: Date requested: 07/04/2018
Project Location: Fort Mill, SC
Air duct sealing and cold/hot spots in the house.
Project Location: Fort Mill, SC
We have a Trane system, and this morning the heat indicated "On" on the thermostat, but the unit wasn't running. After a couple hours, the heat did actually come on, but would like a service visit, and your company was highly recommended. I have not yet looked at the codes to see what the issue was, that's on my to-do list :) Let me know if you are available for a service visit. thanks Kerry Simpkins
Project Location: Fort Mill, SC
We have a Generac 25KW installed at our former home in Chester, SC and we need to have moved to our new home in Tega Cay, SC. This would include removing it, transporting it to Tega Cay, reinstalling it and servicing the unit. The Generac is relatively new, having been installed in February 2016. Please let me know if you have do this project. Thanks
Project Location: Fort Mill, SC
I'd like a quote on two projects: 1. Cleaning our air ducts (we have 15 ceiling and floor vents, and 2 return vents), from an electric heat pump that's located in our crawlspace 2. Moisture control and air sealing of crawlspace: we have a poor plastic vapor barrier and floor joint insulation, but high humidity and moisture wicking up into the concrete block foundation has led to the insulation dripping off and minor mold spots in a couple of places. I'd like to control moisture and insulate the floor/improve energy efficiency with our heat pump. I'd specifically like to know about the option for open or closed cell spray foam along the foundation walls and a new vapor barrier. I don't know that I want to encapsulate the crawlspace -- just protect the heat pump and keep the house interior tight and energy efficient. Thanks for any guidance! -- Patricia
Project Location: Fort Mill, SC
I live in a townhouse and the wall between us seems to be very thin. I can hear the surround sys. I hear them talking from the next door townhouse. I cant hear what they are saying but still. I hear them walking on their wood floors. I would like a free estmate,
Project Location: Fort Mill, SC
Just need service for winter
Project Location: Fort Mill, SC
AC compressor is gone. we need installation for heat and air unit