For over 98 years, GSM Services has made home comfort easy with trusted service, reliable solutions, and top-quality work in Gaston County. As a licensed and insured home comfort specialist, we offer heating & cooling, insulation, air duct cleaning, crawlspace and mold services to improve comfort, air quality, and energy efficiency. Enjoy easy online booking, instant quotes, and free service calls with any repair!
Need HVAC or duct cleaning? Get your free instant quote online in just 30 seconds!
If your Air Conditioning isn’t working, you can always trust GSM Services for prompt, affordable repairs. Our licensed and insured HVAC technicians, with decades of experience, will thoroughly diagnose the problem and provide a clear, no-obligation estimate upfront—no surprise charges. We also offer free service calls with repairs and are qualified to work on all system types and models.
If your Air Conditioner system is old or in need of frequent repairs, upgrading to a new, energy-efficient model can often be a more cost-effective solution. Our certified team can guide you through the latest HVAC technology options for a comfortable, efficient upgrade. Our premium systems deliver exceptional comfort, ultra-quiet operation, and improved air quality, with high-efficiency models that can lower energy costs by up to 30%. Trust our HVAC experts for reliable advice and outstanding service. Call or book online today for a free quote on a new system!
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!
GSM Services provides top-quality, affordable home insulation services in Gastonia, NC. As a full-service insulation provider, we enhance home comfort and efficiency by insulating attics, walls, crawl spaces, basements, floors, garages, and more. With a variety of insulation types to suit any need or budget, we’re equipped to handle it all. Experiencing high energy bills or uneven room temperatures? Schedule a free insulation inspection with us today! Our experts will assess insulation levels, check for moisture and air leaks, and provide a thorough evaluation. You’ll receive a free, no-obligation quote tailored to your needs.
GSM Services provides professional crawl space services in Gastonia, NC. 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!
One of our longtime residential customers came to us with a roofing problem in which they didn’t know who or where to turn to. There were rotten wood and post on the flat roof of their covered porch.
Our residential department does not usually do projects like this, so we sent it over to RoofShield (our commercial roof repair division) to see if they could help.... [Read More]
During this home energy evaluation we discovered moisture and bacterial growth within the crawl space, which was affecting the home's comfort and causing allergens to enter their house. After completing the audit of the whole crawlspace we found that the best solution would to install a crawl space encapsulation.
GSM Services - Dr. Energy Saver division installed a full Crawl Space Encapsulation system, including a smart drain to control the water issue.... [Read More]
Customer called GSM Services to take a look at where bees are getting into the attic and see if we could spray foam the area to seal off the home from bees and other pests. The homeowners were on a time crunch for a graduation party being held at their home and worried about the bees with their guests.
We had a comfort advisor go to the home to check out the situation and found out that the bees had a nest behind the siding.... [Read More]
Gastonia-The Charlotte Observer has recognized 55 Companies and Organizations in the area as Top Workplaces in 2017. Locally owned HVAC company, GSM (Gastonia Sheet Metal) took the No. 3 spot in the midsize category of companies with 150-499 employees. An awards ceremony was held in the NASCAR Tower production studio. The event included a keynote speech by David Oakley, founder and creative director of BooneOakley advertising.... [Read more]
Dr. Energy Saver Charlotte received an award at the Team Basement Systems International Convention for ranking among the Top 10 Dr. Energy Saver Dealers!... [Read more]
Roechling, 903 Gastonia Tech Parkway
At this home we replaced a 15 year old AC unit that had quit working on the homeowners. We got them back up and running in a day!
GSM Services sponsored one of our local elementry schools in the Are You Smarter Than a 5th Grader which helps to raise money for our local schools. We are honored to participate each year.
Complete system installed for customers home comfort.
Mrs. Laws noticed that her system was not running as efficient and consistent as it should. She gave GSM a call as we were her Heating & Cooling maintenance service of choice. Our Appointment Center team member Bailey set up a call for Kelly to visit her home to give her a proper diagnostic and recommendation for improvements.
The best choice that fit the customers needs and budget was the GSM TruComfort Signature Series 96% Efficient heating unit paired with the GSM TruComfort Signature Series air conditioning 14 SEER unit. We also provided the customer with new properly functioning low level CO monitor and a new Honeywell programmable thermostat.
This choice was the best fit for the customers home to improve their comfort, efficiency, and lower energy costs.
The Corbin's were in need of a new system and we wanted to do our best to ensure that the customer will be happy for many years to come.
We recently installed a complete new heating and air conditioning system for this customer in Gastonia. The system consisted of new GSM TruComfort Series furnace in the crawlspce of the home and a new AC and coil outdoor unit for the air conditioning system.
Now the customer will be comfortable in their home with their completely new HVAC system. Leave to Comfort to Us!
Our Residential Install Division conducted a soldering training this morning to ensure everyone provides the highest quality work possible. There are many who settle for doing less, or enough to pass code, at GSM Services, we provide the highest level of training to ensure that our teams continue to be the leaders in our industries.
GSM Services provides an environment where our co-works can succeed.
Help make your house more comfortable and efficient!
On this job we completed our traditional air seal and insulate of the attic and air sealed the crawlspace as well. We installed SilverGlo to the attic-adjacent wall and sealed off the cavity as well.
Super deck install to provide a storage platform in the attic. Duct Encapsulation with spray foam to keep everything sealed and air tight.
Finally, we installed the stair hatch cover which keeps the air consistent, ensuring no air loss.
We have quite the honor to present to our very own, Scott Konowinski!
Story:
A customer called GSM Services to take a look at where bees are getting into the attic and see if we could spray foam the area to seal off the home. What’s more, the customer was on a HUGE time crunch for a graduation party being held at their home.
We had a Comfort Advisor go to the home to check out the situation and found out that the bees have been developing a giant hive behind the siding.
The homeowner wanted to remove the bees in a humane way so reached out to a bee-keeper, but that didn’t stop us from helping the customer.
GSM Services RoofShield division came into the situation to help, this is where Scott Konowinski “bee-came” a GSM Super Hero. We had various GSM co-workers involved in this job but Scott stepped up and volunteered to help remove the bees by climbing up on the roof in a bee suit.
After removing the siding, they found over 200 POUNDS of honey combs between the siding and the wall of the home.
Realizing that this was not a heating and cooling, home energy solution problem or even a roofing matter, our employees didn’t stop at their hired responsibilities.
This is a perfect example how GSM’s core values.
Core Value #3: Exceed customer's expectations in everything we do.
We are proud of the work that Scott provided so this SUPERHERO award goes to you!
28052, 28053, 28054, 28055, 28056, 28052, 28053, 28054, 28055, 28056
Replace A/C and Furnace
Crawl space encapsulation in Gastonia
Furnace replacement in Gastonia
2025 Best Heating & Cooling Company
GSM Voted 2025 Community Choice Award Winner.
2024 Community Choice Award Winner
Voted Best Local HVAC Company in 2024.
2023 Community Choice Award Winner
Voted Best Heating & AC Company & Best Home Service Provider in the county.
Best of Gaston 2022
GSM Services won Best Heating & Cooling Company and Top Place To Work in the County!
Best Contractor to Work For - ACHR News
Named Best Contractor to Work For by ACHR News, a leading national industry publication in 2021.
Top Place to Work in Charlotte
GSM was recognized as one of the Top Places to Work in 2019 by The Charlotte Observer.
GSM's 90th Anniversary Celebration @ The Gastonia Grizzlies Baseball Game
Commercial Roofing - Gaston's Great Episode 793 - Crowders Mountain
Air Conditioning - Gaston's Great Community Foundation Run
Air Conditioner Cleaning before and after
Mold before and after in crawlspace
AC Units upgrade of SSeries Amana Units
Crawl space door upgrade before and after
Dryer Vent Cleaning before and after
Two split heat pump changeouts before and after's of the outdoor condensers
Metal Duct Cleaning Before and after
Dryer Vent Cleaning Before and after
We recently completed a gas furnace and AC installation for a business. It was a challenging job that required careful planning and execution. We worked with the client to select the right equipment for their needs and ensure that the installation was done correctly.
Dryer Vent Call, Before & After of a Dryer Vent cleaning
AC Call, Before & After of a Unit Changeout
Crawl Space Call, Performed an installation of vapor barrier & dehumidifier
Crawl space Call, Performed an installation of a vapor barrier to crawl space
AC Call, Performed a changeout of a Carrier gas package unit
Ductwork Call, Before & After of a duct cleaning
Crawl Space Call, Performed an encapsulation for humidity control
Furnace Call, Performed a changeout of a Gas Pack
Dryer Vent Call, Before & After of a Dryer Vent Cleaning
Furnace Call, Performed a changeout of a split multi system
Guttering Call, Performed a Gutter Cleaning
Crawlspace Call, Performed mold treatment, installation of a vapor barrier and Santa Fe dehum
Gutter Call, Performed an installation of gutter guards
AC Changeout Call, Performed a changeout of a Goodman Package Unit
Package Unit Call, Performed an installation of a Goodman Package Unit
Dehumidifier Call, Performed an installation of a Sante-Fe Dehumidifier and encapsulation of crawl space
AC Call, Performed a changeout of the HVAC systems
Insulation Call, Performed an insulation install of attic space
Encapsulation Call, Performed an encapsulation of a crawl space and an installation of a Sante Fe Dehumidifier
AC Call, Before and after of a changeout of a new A/C Unit.
Duct Cleaning Call, Performed maintenance on supply vent to clear mold
Furnace Call, Performed new AC and Furnace installation
Package unit Call, Before and After of a package unit replacement
AC Call, Performed an installation of a Goodman Package Unit
Furnace Call, Performed a furnace install
Heating and Cooling call, Installed a new Amana S Series Unit
Ac Unit Call, Replaced Goodman Air Conditioning unit
Crawl Space call, Performed Humidity Control in Crawlspace