Yikes..... yikes. Service tech was awful. Lazy and SHADY! Claimed he couldn't detect for a Freon leak until he charged me $2,700 to fill the system of Freon! He never even mentioned you can detect using Nitrogen, which is FREE/ included in diagnostic check. Management did apologize for this tech and was nice. Although I will never be able to trust anyone to perform honest work from this company. Save you time, find a smaller local HVAC company that is more trustworthy.... read more

GSM came out and put in a whole new heating and air system. They was very good,polite and got the job done. Clean up all the mess and answer anything we ask them. A the man that came out to give us an estimate was Jim Smith. Shout out to him and the guys that did the work. read more

We just had a new system installed by GSM. From day one every person we dealt with, in person or on the phone, was pleasant and professional. From the two brothers who installed the temporary unit to get us through the heat, to the salesman, and the final install with Stoney and Collin. GSM has some great folks representing them in the market-place. Well done! Mark C. read more

Recently had Mason come out a few times to check our furnace. Very timely and professional! Had to troubleshoot a few things to find out what was causing a rattling noise, but was patient and made sure to hang around until he could hear what we heard and figure out the cause. Thanks Mason! read more

Outstanding HVAC Service from Stoney and Colin Stoney and Colin did an excellent job replacing 2 condenser units at my home. Even on a scorching day, 98 degrees with a heat index of 102, they never slowed down. They were professional, punctual, provided us with an ETA, and clearly knew their trade. All floors were well protected. My wife works remotely, and never heard them while they were in the house. They explained everything in a way that was easy to for my wife and I to understand, answered all our questions, and made sure the new system was running perfectly before they left. Their work was efficient and neat--no mess left behind inside or outside our home. Now my home is cooling better than ever now. I highly recommend Stoney and Colin to anyone needing HVAC work. Great guys and top-quality service! read more

Very professional company. Great employees who are good at their jobs from the office staff to the estimator to the installers. We purchased a new AC/HVAC Unit. We got our estimate on a Saturday and had financing within minutes. The new unit was installed on Wednesday, and we were nice and cool. Great efficient unit too. I see other reviews about prices of parts to fix older units, and I can tell you that I called around and went through the same thing with other companies. In fact, we paid another company $500 and our unit was still not operational, and they quoted us about 6K to "get us through the summer." So, we went with GSM. It is just more effective to purchase a new one and with the financing options from GSM it was a breeze to do. I hope to purchase a home standby generator from them soon too. read more

We have lived in our town home for 10+ years, and have used GSM consistently for our spring & fall checkups. Their service techs are always helpful & professional. Since our residence was actually built 23 years ago, we recently called on GSM to propose a complete replacement of our air conditioning & heating systems. The proposal was fair & the installation was implemented on schedule with ongoing attention to detail & communication, followed by a thorough review with my wife & me. Jay Barnes read more

I called GSM or Gastonia Sheet Metal due to my parents capacitor going out on their air unit. The guys came out quickly on Friday. Showed me a price of the capacitor that was causing the fan not to run. $404.00 was the cheapest capacitor he could sell me. After telling someone how much I was charged they told me if I looked up the price for that it would make me sick.. it did. The cheapest capacitor I found online was $7.97 and it literally took 4-5 minutes to put it on. YOU WOULD THINK BEING A HEATING AND AIR BUSINESS YOU WOULD GET PARTS AT A DISCOUNT! This goes ON EVERY YEAR having this air fixed. Hell, I know people who have had their unit 20 years with NO problems! AND BY THE WAY, THEY PAY $16.00/month for a service contract with these price gougers!!!' Please, please SHOP AROUND!!! Forget the service contract!!! Do not use this company!!! I also will be canceling my service contract with GSM for my house! read more

We called Duke on 3/13/2023 and the rep told me that no rebates were submitted by GSM on our behalf. Then I received the following message from Tim. I just couldn't believe it. We have been receiving messages and emails like this and more from Tim and Becky that we are in contact with our representative with Duke and you should be receiving your rebates soon. Please read through these chain emails. All this is that rebates were never submitted to Duke. We were getting the runaround. Poor customer service. We were told that someone from management will be contacting us soon and it's been a week with no response from them. Tim mentioned in his message below that Duke is issuing new cards today! Since you didn't fill the rebates, how do you expect Duke to send the rebate cards? It's been seven months since the systems and smart thermostats were installed and they cost us $47000.00 and this is how you treat your customers. You completely lost our trust with telling us stories and not doing your job. "Duke says that they sent out the cards weeks ago. We told them they were never received by the customer, so they are issuing new cards today. Unfortunately, we don't get notified when the cards are received by the customer since they simply get mailed by Duke" from Tim the sales person. Fri, Jan 20, 12:29PM to me Good afternoon, I have sent an email to our rep at Duke about this issue. I will let you know as soon as he responds to me. Thanks! Thank you! Becky Brown Notary Public North Carolina Residential Sales Support Administrator Office: 704-864-0344 M Khan Mon, Mar 13, 1:47PM (7 days ago) to Becky We don't care whose fault it is. We only want to get it fixed. Now we have to wait 4-6 more weeks? After you told me more than once that your Duke Energy contact was fixing things, I am very disappointed. We had 2 units installed with 2 smart thermostats plus a new furnace, new ductwork and a mini split for our garage. It was not chump change. Why did you only file for the small unit per Duke Energy - none of the rest. The rebate promised to us was more than 2X the $300 that Duke Energy says you applied for. Something stinks. I don't know what and don't care as long as it gets fixed quickly. The sad thing is we are very happy with our system and hate that this is souring the whole experience. We are strongly considering changing our previously very positive review. It's obvious that the rebate was never filed and the assurances you gave me were lies. Becky Brown Mar 13, 2023, 1:50PM (7 days ago) to me I can only fix this now like you said. I can assure you that i did do what was told. I will work on getting this fixed asap and try to salvage what is left of this situation. this was my first issue with Duke and i am learning from this. I apologize for this again. I am working on this now. Thank you! Becky Brown Notary Public North Carolina Residential Sales Support Administrator Office: 704-864-0344 www.GSMsince1927.com leads@gsmsince1927.com read more

It took some work but GSM made it all right. Appreciated their commitment to making good on their promises.

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. read more

Horrible is the only word to describe the incompetent, uncaring experience I had yesterday. I had a 2:00pm appointment to have a winter check of my system at our vacation home. It took me an hour to travel there. The Technician appeared with a paper filter in his hand asking what kind of system I had. Now, they have been servicing this home for 5 or 6 years and the Technician didn't know that it does not use paper filers or even what kind of unit it was? The Technician said he was only told to go to the address, service the unit and he had no idea what it was. He then asked where the unit was and soon came back and said he couldn't service it because it was raining and I would have to schedule another appointment. So, the company, knowing what kind of unit I had and apparently that it could not be serviced in the rain, sent a Technician who had no knowledge of my unit in the rain only to tell me that I would have to make another appointment and waste another day traveling to the home. When I finally got to talk to a supervisor (this took about 45 min.) He said they were not perfect and made mistakes (an understatement for sure) and could not explain why he sent an unknowledgeable Technician in the rain when he should have know that the unit could not be serviced in the rain and offered no consideration for their mistakes. I was charged $96 against my account. After three hours, the Technician said the rain slacked off and he had been able to do the service after all. I can only wonder if this is true. So, being a preferred customer paying some $23.00 per month for 5 or 6 years accomplishes nothing with this company. They apparently don't keep records of who you are or what equipment you have and send Technicians who can't work in the rain, on a rainy day to your home knowing nothing about your system, its history or requirements. Then they expect you to make another appointment, waste another day when it was their fault that caused this. read more

GSM is the worst company to deal with. Once they have your money, all bets are off. They voided our warranty because they didn't show up for the 6 month service check. Piss poor service and installation. Left all the trash from the tearout of old unit and the trash from installing the new unit under the crawl space. Office lady says because we didn't have a membership (with them), our service warranty is voided. read more

Stay away!! arrogant and incompetent as well as not truthful. Having dealt with upper management on the commercial side I can tell you they terrible. I've known several ppl that worked there as well. not going to name drop the managers i have dealt with but one of the owners I've dealt with is arrogant and could give a crap about service after the fact. read more

I have been using this company for 25 years. They always exceed my expectations with their work. They are on time for the appointment , very professional and knowledgable. They aren't in a hurry and answer all my questions. They put in my air conditioner and furnace and do the maintenance on it They are clear about the parts and costs I also have a 30 year old system upstairs and they have been able to keep it going. Yey! They had to build some ductwork a few years ago and did a great job! Very reputable business read more

I DO NOT recommend using this company. There is ZERO follow through. Salesman came by to look over heating unit. He was supposed to have an estimate for a replacement to me by the next day. It has been five days later and still no estimate. Salesman pushes me off telling me he will have it to me later in the day and obviously doesn't want or need my business. I guess Jim isn't aware GSM heating isn't the only gig in town. read more

I was having problems with high humidity in my crawl space. GSM installed a dehumidifier which solved the problem completely for a fraction of the price others were quoting me for a complete redo of my vapor barrier and installing a complicated ATMOX system. The installers were all great to work with and they even came back for a quality check a few months later to see how things were working free of charge. I will definitely use GSM again! read more

We were very pleased with the services we received recently from GSM. We had our entire duct work removed and replaced with new material. Tim Switzer came out to give us an estimate and explained all the details of the installation, pricing, and scheduling. He also brought a heater for the cool night while the work was in progress. Stoney Davidson and crew did the work in a short 2 day period. Everything was clean and orderly. All were efficient, professional and easy to communicate with from planning to finish. We are glad we chose GSM. read more

True story.....Our upstairs unit had stopped cooling, so we called GSM to come out & take a look. They inspected & told us the compressor had gone bad...minimum of $2k & that we should really just put a new unit in....average $7.5K because there were "probably" other issues with it. We decided to get a second opinion & called Morris Jenkins. There technician came out & inspected it for 10 minutes. He let us know that the compressor was fine & that a $500 switch just needed to be replaced. The Morris Jenkins tech wasn't sure if the GSM had even looked at the compressor. GSM decided they would rather screw me than provide good service & get a loyal customer. Thanks to Morris Jenkins! read more

New arrival in Gastonia and the first deep cold snap I had no heat; just the fan blowing. Aux heat did not function and the compressor disconnects below a certain temperature. Called GSM after checking their many 5 star reviews. They did not disappoint. 10 minutes into the visit their tech found the problem: a loose connection in the thermostat. No expensive parts needed, just 10 second tightening of a tiny screw! The tech and his assistant were excellent. Fast, friendly and professional. Gsm will always be my first call when I have a HVAC problem! No wonder they've been in business so long. read more

We recently had a new HVAC system installed by GSM. Also, a wonderful steam humidifier. The price was exactly what they quoted and the performance of the system is even better than we expected. We had one minor issue after the installation and they addressed it immediately. I admire the fact that GSM employees are obviously proud of the company's reputation and consistently go above and beyond to maintain the trust of their customers. We always appreciate their commitment to excellence which is certainly reflected in their products, services and, most importantly, in their employees. We've been GSM customers for over 20 years. During that time we've learned, there may be cheaper options out there, but there is no better value. read more

**Update, GSM did come and finish the job I was under the impression was to be done from the beginning (plus added some plastic barrier in my crawl space they saw was needed to fill gaps as a nicety). I am only increasing my *'s from a 1 to a 2, though, since it shouldn't have been such a situation with 4 active days at my house to resolution. In the end I did finally get what I thought I was paying for to begin with, the owner, manager and employees were nice and pleasant - but again, the experience was riddled with errors and headaches for us all on multiple levels. (Original 1* post) I had a terrible experience with this company. THOUSANDS of dollars later I still have a bunch of things that were not done (was never quoted for additional stuff even though it was discussed during evaluation and was told it would be done in the process - WRONG!). Not to mention workers took 2.5 hrs worth of breaks during 6.5 hrs of time they tied up for me the first day. PLUS, the first day they only had about a third of the product to even do the job. Since they had failed on so many levels, I am unwilling to spend any more money with them, so resolution talks with owner (or "leadership team" or whomever) left me unsatisfied. But to be fair, I can't think of any resolution that will satisfy me at this point (although some effort or creative suggestions would have been appreciated). read more

GSM exceeded my expectations on a recent repair. They were able to come out the next day to diagnosis the system and discuss my repair options. Unfortunately, the blower motor had failed and required replacement. They worked with the manufacturer to determine the part's warranty eligibility. They quoted me a price to replace the motor and even honored that price after the manufacturer came back and clarified that the motor warranty had just expired. The technician was knowledgeable and friendly. He gladly explained the problem and showed me the failed part. I really appreciate the technician wearing boot covers when entering my home and laying down a rag to protect the floor. GSM is now my first choice for heating and air. Thanks to Mark & Mike! read more

Horrible company!!! They installed my Furnace and I can't even began to say what horrible job they did! What's worse am still paying for it! So watch out people! read more

I needed our attic insulation completely removed and replaced, and I called GSM Services because of their consistently high ratings. From the initial call, to their visit and estimate, I can see why their ratings are so high! Total professionalism, but it felt like I was talking to a personal friend. As others have stated, they were not in a hurry, answered all my questions, and even changed my appointment time when I had an unexpected conflict to better help me. Once Tim was here, I asked him if he could take a look at another issue I was having in my crawl space. He immediately said "of course" and spent another hour surveying and evaluating that issue. When he was finished, he provided me with multiple solutions to BOTH issues, giving me options from low-cost to more involved/expensive ones, to decide on. We have decided on the option to take and have scheduled the work in October.....even that was done with our convenience in mind! I plan to update this review after the work is completed, but if it's even close to the initial customer service, I will be very pleased!! read more

We used GSM for insulation, heat and AC replacement. The experience was excellent. Beginning with the low pressure sales meeting with Wayne to the installation with Sean and the the 2 teams of hard working professionals. Our install occurred during August 2016 when we were having temps in the high 90s. The guys had a rough job and we are very happy with the results. Jeff read more

Very disappointed in an over the phone quote. I called GSM on 5/19 since they installed my system a little over 5 years ago to get a quote on changing a bad metering device. Well after getting a quote of between 700 and 950 dollars being mechanically inclined I called a friend that is a contractor. We picked up the part at a business in charlotte after business hours. Part 41.03 to get shop to open another 50. My buddy and myself installed the part and had A/C back where it needed to be in 1 hour 20 minutes total. That's counting driving time to charlotte, replacing part, pressure testing system to make sure no leak before releasing 410 back out of compressor, and system back at 100%. I know most people can not do this on their own, but seems 700-900 for 1hr20min and a 41 dollar part is a bit steep! read more

After a few years of terrible service from Charlotte Comfort Systems I switched to GSM. What a difference. The techs are so much more knowledgeable and professional. The company stands behind its work and their prices are good. I wish I had them from day one, I would have avoided the other nightmare. read more

GREAT SERVICE , FAIR , AND VERY HELPFUL .I needed work done on my HEAT PUMP ,I had service agreement with a company my wife picked . I will not mention their name because it is of no consequence .My in laws are in their 80's The company that we NO LONGER USE. tried scaring them into a major purchase. Thanks to the honest work of GSM I have a reliable company to call now. The company THAT WE DON NOT USE IS BASED OUT OF CHARLOTTE. LEAVE IT AT THAT .If you are in the greater Gastonia area CALL GSM , JAMES the tech was very good . Kudos !!!! read more

It has been 8 months since i gave them a contract to do a roofing job , they still have not finished it , it took them 4 months just to start , they send a new guy each time as a supervisor & he has different excuse for taking so long . so beaware read more