Expert AC Repair, HVAC Replacement & Installation Services in Rock Hill

For 99 years, GSM Services has provided AC repair, AC replacement, HVAC maintenance, and new heating & cooling system installation in Rock Hill. Our certified technicians provide fast, reliable service, quality workmanship, and honest, fair pricing. We also offer insulation, air duct cleaning, and crawlspace services to improve comfort, air quality, and energy efficiency. Enjoy easy online scheduling, instant online quotes, and FREE service calls with repairs!

Why Locals Choose GSM Services:

• ✅ Fast, Affordable & Reliable
• ✅ Licensed and Insured
• ✅ Locally & Family-Owned for 99 Years
• ✅ Voted Best Local HVAC Company
• ✅ 100% Satisfaction Guarantee
• ✅ Unbeatable Warranties
• ✅ Financing for Any Budget
• ✅ FREE Service Calls with Repairs
• ✅ FREE System Quotes
• ✅ FREE Insulation, Crawlspace & Energy Audits

How Much Does a New AC System Cost in Rock Hill?

The cost of a new Air Conditioning system in Rock Hill 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. Every home is different, which is why pricing can vary significantly. Factors such as square footage, insulation levels, existing equipment, and energy-efficiency goals all play a role in determining the right HVAC system and cost for your home. At GSM Services, we make it easy to get an estimate before scheduling an appointment. Use our free HVAC System Cost Calculator to receive instant, customized pricing for your home in Rock Hill, including estimated monthly payment options.

HVAC & Duct Cleaning Prices in Rock Hill

Get your free instant quote online in seconds!

Heating & Cooling Services in Rock Hill:

Crawl Space, Insulation, Generators & Other Home Services in Rock Hill:

AC Repair in Rock Hill

If your Air Conditioner isn’t working, trust GSM Services for fast, affordable AC repair in Rock Hill. 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.

Signs Your AC or HVAC System Needs Repair Services

• AC not cooling properly
• HVAC system freezing up
• AC Blowing warm air
• Loud noises from HVAC unit
• High energy bills
• Uneven temperatures in your home

HVAC Replacement & Install Experts

Looking for a New Air Conditioning System? Our licensed HVAC installers in Rock Hill 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!

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

Rock Hill Crawl Space Repair & Service Contractors

GSM Services provides professional crawl space services in Rock Hill. 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:

• Crawl Space Mold & Growth Solutions
• Crawl Space Encapsulations
• Crawl Space Cleanings
• Crawl Space Insulation
• Crawl Space Dehumidifiers
• Vapor Barrier Installations
• Sump Pumps & Water Removal
• Crawl Space Doors

Duct Cleaning Services in Rock Hill:

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 Rock Hill:

GSM Services is your trusted local insulation company in Rock Hill. 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!