Furnace Repair
Furnace Installation
Furnace Tune Ups
Heat Pumps
Gas Pack & Package Units
Ductless Heating
HVAC Tax Credit
Photo Gallery
Air Conditioning Repair
Air Conditioning Installation
Air Conditioning Tune Ups
Ductless Air Conditioning
HVAC Tax Credit
Photo Gallery
Service Call Appointment
HVAC Replacement Quote Appointment
For over 98 years, GSM Services has been the trusted local HVAC company, providing dependable heating and air conditioning repair, maintenance, and installation throughout Gaston, Mecklenburg, York, Cleveland, and Lincoln Counties. We're proud to be recognized as the top choice for reliable, high-quality HVAC services.
Enhance your home's comfort, air quality, and energy efficiency with our full range of expert home comfort & HVAC solutions.
Use our HVAC cost calculator to get an instant quote for replacing your heating and cooling system or adding a mini-split system. Just answer a few questions about your home and instantly view your quote!
100% Satisfaction Comfort Guarantee: If for any reason you are not satisfied with your new system installation, GSM Services will remove that system and install a new HVAC system or refund the total purchase price. This guarantee will remain in effect for one year after the original date of installation.
"No Surprises" Guarantee: Once the work starts, the price quoted is the price you pay, even if the job entails more work than estimated.
In 2025, the cost of a new heating and cooling system installation typically ranges from $10,000 to $15,000+. This turnkey price includes everything from start to finish: all equipment, installation, permits, inspections, labor, electrical work, and basic accessories like a thermostat. Key factors affecting the price include home size, equipment location, the home's age, and the system's fuel type, etc. Get an online quote to replace the HVAC system at your home in seconds.
With over 98 years of experience, GSM Services is your trusted local provider for all heating and cooling system services. Our licensed and insured HVAC experts deliver reliable, energy-efficient solutions that enhance home comfort and improve indoor air quality. We proudly serve Gastonia, Belmont, Charlotte, Fort Mill, and nearby communities with customized HVAC services tailored to your needs.