All reviews for GSM Services

Great customer service yesterday, I called GSM because my heating unit was freezing over. GSM came right out within a day, identified the problem, ordered a replacement part, and had our heat running again immediately. I would not dream of calling anyone else. Thank you to the technician for his clear and concise communication and stellar customer service! I am a happy customer!

The Tech that came out and performed my heating maintenance (Cameron), very knowledgeable for the time he has been in the field, took the necessary steps to complete his task safely. Also this young man was polite and that is rare in my findings. He will go far in his life...goog luck Cameron

I called GSM after my furnace was tagged by the gas company. Reed Mooney provided fast and efficient service. He was professional and personable. Very kind and knowledgeable. He got the furnace back to working order and gave us peace of mind.

Just had my HVAC system routine service done for the upcoming winter. The technician was very polite and cautious carrying his equipment as to not bunk into anything. He took the time to greet us and our dog. He told me the results that everything looked good and asked if I had any questions. I would gladly welcome him back for the next check up.

I can’t say enough good things about Gaston Sheet Metal! Under the leadership of Steven Long, one of the owners, this company goes above and beyond—not just in their exceptional work but in their commitment to our community. Steven chaired the Executive Leadership Committee for the 2025 Walk to End Alzheimer’s in Gaston County, pouring his heart into making it a success. His dedication was inspiring, and it’s clear he cares deeply about making a difference. After the event, he even sent all the executive leaders beautifully engraved coffee tumblers—a thoughtful touch that shows his appreciation for teamwork and community spirit.

As a business, Gaston Sheet Metal reflects that same excellence. Their craftsmanship is top-notch, their service is reliable, and they treat you like family. If you’re looking for a company that delivers quality while giving back to Gaston County, look no further. Steven and his team are the real deal—highly recommend!

Joshua was very professional and effective. He was able to repair my heating unit without replacing the coils which would have been a $980 repair. Great Customer Service.
Definitely recommend GSM. Third time they have serviced my residence and they were professional on all aspects.

The insulation in my crawlspace and the ductwork all around my house were in very poor shape, but GSM did a great job of putting everything in order! Stoney and Connor plus the rest of the team were very helpful, kind, and respectful throughout the whole process. They arrived on time and even finished the job a few hours early (unheard of in the construction world, I know).

Contracted maintenance service. This visit was to change two filters and check out the furnace.Mason, the technician arrived at the appointed time and was very cordial and outgoing. When he finished he throughly explained what he observed and did to the gas furnace. Before leaving we scheduled my next contract appointment .
The business from top to bottom seems genuinely concerned about its customers and is very professional. Highly recommend this company for you heating and air needs.

Your technician was very knowledgeable worked efficiently and was an overall super great guy who helped me understand the new thermostat. I wish I hadn't waited so long to give you a call but you will definitely be in my contacts from here on out. Thank you again for all your help of getting my heat back working such a wonderful thing!

Purchased six annual HVAC system maintenance plans. GSM Technicians Skylar and Lamorris were punctual, and went right to work with a detailed inspection of the units. Afterwards, giving me a short summary of the findings with a promise of a written report to come on each unit. Thank you GSM for such Super Service.

Andrew always gets the job done while being respectful of our property. Very professional and courteous. And always explains what he had taken care of.

GSM is a Duke Energy recommended installer for attic insulation. Everyone I worked with from the initial salesperson to the installers were all nice and professional. They completed the job in a day and I now have a much warmer/ cooler home.

GSM is awesome! Our technician was Justyn and he is an absolute amazing technician! Extremely helpful, great customer service and extremely friendly! Couldn’t have been more happier!

I have always received outstanding service from GSM. I would highly recommend their service. Professional, great customer service and reasonably priced. My technician Jeff was very professional and knowledgeable. He took time to explain recommendations that were needed.

I had Stoney and Connor at my house today. These guys are the greatest! They already installed 2 HVAC systems on our property, and today they also improved the make-up air system for my oven/grill. They are truly experts, very personable and polite too.

I am a long standing customer of GSM. They provide the absolute best customer service! I was having trouble with my heat pump after the sleet and ice storm. I called Monday morning and received a same day appointment. The tech, Reed Mooney was on time, friendly and knowledgeable. He diagnosed and fixed the problem very quickly. THANKS!

I contacted GSM on Friday and to my amazement I received an appointment the same day. Our Tech came out he was very polite, friendly and courteous. He immediately identified the problem with my furnace and repaired it. He was respectful and respectful of my property. Now I have heat again. Thank you GSM for great quick response and service.

Great experience from start to finish. Jim was great to work with on the initial meeting a Conner and Stoney were excellent installers. They were great with communication and did not leave until everything was just right and didn’t cut any corners. 👍🏻👍🏻

Skylar Ware came by today to check out my heating unit in preparation for the coming winter season. He was right on time, worked efficiently, and was very personable. I was quite impressed by him, especially when I learned he was younger than I thought. So nice to see that in the younger generation! Had a very nice conversation with him while he worked. Bottom line, he represented GSM very well and inspired me to join their Loyal Customer Membership.

GSM has saved the day. Our crawl space had mice, water, high humidity, unsealed ductwork - everything you can imagine. I got rid of the mice and in a week’s time they replaced the ductwork, encapsulated the space, and did it all with a smile. I interviewed 4 different crawl space companies and GSM was not only the most knowledgeable, but were also the only company that made me feel like they cared more about our home than they did about selling me a service. I can’t say enough about Drew (who initially came out to the house and coordinated everything), Stoney (the Lead Installer), Colin (his apprentice), and the rest of the GSM crew. I’ll be a customer for as long as I live here - highly recommend them!

GSM has been performing our furnace checks since they installed the unit. I’ve always appreciated their professionalism and pleasantness. Joe was early, worked quickly, and made sure to give me a concise update when done.