Welcome to GSM Services

When it comes to heating and air services, there’s no substitute
for professional experience.

GSM Heating and Cooling has been a leader in the industry for more than 80 years. Our team of experts is always growing – both in size and in knowing how to provide the most reliable heating and air service, installation, repair, and maintenance in our area. We stay on the cutting edge so that you can get the best new equipment, technology, and money-saving ideas for keeping your home or business comfortable year-round.

We know you’re busier than ever – so you need one place for all your comfort solutions to make heating and cooling your home simple. We provide solutions to your problems, residential or commercial. Our customers range from families in need of a new air conditioning unit to business owners struggling with humidity control in their offices. No matter what the issue is, we’ll make fixing the problem quick and easy, so that the whole process is convenient for you. We want you to be comfortable, so our goal is quick and knowledgeable service.

GSM has been serving Gaston and surrounding counties for 88 years, providing expert heating and cooling services to your friends and neighbors. You’ll recognize our team members by their professionalism and courtesy. There’s not a problem our team hasn’t seen and can’t solve. 

You can call on us when you need services like:
     • Routine maintenance
     • Planned maintenance
     • Fully insured, licensed, and bonded
     • Servicing all makes and models
     • Energy efficiency evaluations
     • Emergency response
     • Fully trained professional technicians

There’s a reason GSM Heating and Cooling is the number one preferred heating and cooling service provider in the Gaston County area. Our reputation for excellence and unbeatable commitment to customer satisfaction makes us the clear choice when deciding to call for heating and air assistance.

Call 704-864-0344 for expert heating and air services now.


GSM did a terrific job at my house. I am very pleased with the results and have quickly noticed the difference with the heating of my old house. GSM will definitely by used for my HVAC needs in th..

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Humidity has a big impact on indoor air quality. Indoor air quality (http://www.gsmsince1927.com/hvac-product/de-humidifiers) has a tremendous impact on both your bills and your health. It’s also surprisingly easy to get under control, especially in terms of proper h .....
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Simple green energy tweaks provides benefits to the environment and your bank account. Green energy (http://www.gsmsince1927.com/home-energy-evaluation) doesn’t have to involve a roof lined with solar panels and a windmill in the yard. In fact, you can significantly  .....
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Take a look at this article, all about one of our team! At GSM, we are always proud of our technicians and the hard work they put in every day. Today, we are excited to recognize Eric Pressley and what he has accomplished so far during his PHCC apprenticeship. Check out the .....
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