Business Details
50+ Years
experience
Emergency
services
Your Trusted HVAC & Home Comfort Partner Since 1927
GSM Services has been a trusted name in home comfort solutions since 1927, serving Gastonia, Charlotte, and surrounding areas. Specializing in HVAC systems, insulation, duct cleaning, and crawl space solutions, the company combines cutting-edge technology with personalized service to enhance energy efficiency and indoor air quality. With over 98 years of experience, GSM prioritizes customer satisfaction through transparent pricing, comprehensive warranties, and a commitment to community involvement.Their team of certified professionals delivers reliable installations, repairs, and maintenance while emphasizing sustainability and innovation. From emergency repairs to energy audits, GSM ensures tailored solutions that meet each homeowner's unique needs. Their dedication to excellence is reflected in a 4.9-star rating from over 3,000 reviews, solidifying their reputation as a local leader in home comfort services.
Services
HVAC Repair
Duct Cleaning
Insulation Services
Crawl Space Encapsulation
Generator Installation
Air Duct Sealing
Thermostat Replacement
Mold Remediation
Commercial HVAC
Roofing Services
Details
- Year established: 1927
Highlights and features
- We offer 98 years of experience in HVAC and home comfort solutions
- Our team uses cutting-edge equipment for precise duct cleaning
- We provide worry-free pricing with no surprise charges
- Our comprehensive warranties back all HVAC installations
- We offer free online quotes with instant pricing available
What people say
Professional technicians
Prompt service
Clear explanations
Energy savings
Thorough inspections
Services
HVAC Installation
GSM Services specializes in complete HVAC system installations for residential and commercial properties. Our certified technicians handle furnace, air conditioner, and heat pump installations with precision. We offer energy-efficient models from trusted brands like Generac, ensuring optimal comfort and reduced utility costs. Every installation includes proper permitting, code compliance checks, and manufacturer warranty registration.
Duct Cleaning
Professional duct cleaning services improve indoor air quality and system efficiency. Our process includes full-system inspection, HEPA vacuuming, sanitization treatment, and leak detection. We clean supply and return ducts, registers, and HVAC components using industrial-grade equipment. Regular maintenance prevents allergen buildup and extends system lifespan.
Crawl Space Encapsulation
Our crawl space solutions address moisture issues and improve home energy efficiency. Services include vapor barrier installation, dehumidifier setup, and structural repairs. Encapsulation prevents mold growth, pest infestations, and structural damage while improving indoor air quality. We use durable materials with lifetime performance guarantees.
Insulation Services
GSM provides comprehensive insulation solutions for attics, walls, and crawl spaces. We install fiberglass, cellulose, and spray foam materials to meet R-value requirements. Proper insulation reduces energy costs, maintains consistent temperatures, and improves comfort. Our experts conduct thermal imaging to identify problem areas before installation.
Generator Installation
As authorized Generac dealers, we install residential and commercial standby generators. Our technicians handle whole-home power solutions with automatic transfer switches. Systems provide uninterrupted power during outages, protecting essential appliances and HVAC systems. We offer maintenance plans and annual performance checks.
People
Steven Long
President of Residential Division
Third-generation leader with 30+ years in HVAC industry. Graduated from NC State University, active in community organizations including Rotary Club and Boys and Girls Club. Focuses on residential HVAC innovation and customer satisfaction.
Joel Long
President of Commercial Division
Commercial HVAC expert with extensive roofing and construction experience. NC State graduate who expanded company's commercial services division. Active in local economic development initiatives and Gaston Chamber leadership.
Questions
What HVAC services does GSM offer?
We provide complete HVAC solutions including installation, repair, and maintenance for furnaces, air conditioners, heat pumps, and ductless systems across residential and commercial properties.
How much does duct cleaning cost?
Our standard duct cleaning service costs $189, including full system inspection, HEPA vacuuming, and sanitization treatment for typical residential systems.
Do you offer emergency HVAC service?
Yes, we provide 24/7 emergency HVAC repair services with no additional charges for after-hours visits.
Are financing options available?
We offer flexible financing plans for HVAC replacements, crawl space encapsulation, and major home comfort projects through approved credit partners.
What areas do you service?
We serve Gaston County, Mecklenburg County, and surrounding areas in North and South Carolina, including Charlotte, Gastonia, Fort Mill, and Rock Hill.
Do you provide home energy audits?
Yes, we offer free comprehensive home energy audits (normally $249) to identify efficiency improvements and comfort solutions for your property.
Reviews (6)
Mital Rabara
Jun 19, 2022
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So I have been working with GSM for about more than a month now. Customer service is always friendly when I call, however they can do better job communicating details of job. I have to call them everyday to see when the part would be coming to finish the repair. Then would take approximately a week to actually get it installed. I understand it's busy season but can do it little sooner.
Melafaire
May 23, 2022
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The gentlemen who came to my house, came to install a dehumidifier in our crawl space. They were considerate, calling when they were going to be a few minutes late, and were very professional. They got the job done quickly and then explained what was done and how the little sensor that goes with the dehumidifier works. GSM is a good company that we have worked with for years and plan to work with for many more.
Donna V.
May 19, 2022
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Bad customer service. I called to get help with my air conditioner. I asked if they serviced my area Amanda said yes. When I told her I have an old unit her voice changed and she hesitated then she said a tech would call me back shortly. No one called all night. The next morning Amanda called and said sorry we don't service your area. I found out from a friend that they do service my area they just didn't want to work on an older unit.
Very bad customer service. Also if that was true the technician should have called back that night and informed me. I waited on a call all night. I could have had a head start and called someone else. They didn't care.
Very bad customer service. Also if that was true the technician should have called back that night and informed me. I waited on a call all night. I could have had a head start and called someone else. They didn't care.
Ashley Woody
Apr 04, 2022
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Since the moment we called GSM for what we hoped would be a repair that turned into an HVAC replacement. Everyone at GSM has been friendly and caring, very knowledgeable and helpful. I am so glad we went with GSM. Very pleased with the installation. They answered all our questions, gave suggestions and really made this process easy. Would highly recommend.
Summer Stuart
Feb 27, 2022
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Austin was wonderful. We just moved into our home and our heating system was making a loud noise. Knowing it was a new unit we called who installed it. Austin with GSM came out and checked everything throughly. Then explained the system and controls to us. He was very knowledgeable, professional and friendly. I will highly recommend them to all my friends and family. Summer Stuart
Charlene Krug
Feb 22, 2022
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Our technician. Zach was friendly, professional and you can tell he really cares. Recommendations were made in a practical and reasonable manner so as to not over inflate or exaggerate. Honest opinions given that are logical and reasoned as to what can wait - and what can't wait. GSM installed our system 11 years ago and has done all maintenance. System is holding up incredibly well and we are quite pleased. Highly recommend!
