GSM Services

Heating and Air Conditioning, Insulation, Energy Efficiency Auditing,

About us

We are a licensed and insured HVAC and home services contractor, delivering fast, affordable, and top-quality work backed by a 100% satisfaction guarantee. With over 97 years in business, we’ve earned a reputation for exceptional customer service, reliability, and trust. As your one-stop solution for home comfort, we specialize in improving comfort, energy efficiency, air quality, and the overall health of your home’s environment. Heating & Cooling Repairs • HVAC Install & Replacements • Insulation • Air Duct Cleaning • Dryer Vent Cleaning • Home Energy Audits • Crawl Space Encapsulations • Attic & Crawl Space Improvement Services • Standby Generators • Air Quality & Home Mold Solutions • Dehumidifiers • Ductwork Repair & Replacement • FREE HVAC Service Calls with Repair • FREE Online Quote on New Heating & Cooling Systems • FREE Insulation Evaluations • FREE Crawl Space Evaluations • FREE Home Energy Audits CURRENT SPECIALS: • 0% for 18 Months on Select New Heating & Cooling Systems *With financing approval. • $100 off Home Insulation* • $30 OFF Furnace Tune Up, & Safety Check (Reg $128)* • FREE HVAC Service Call with Repair* • $39 per Vent Duct Cleaning & Disinfectant Spray Treatment Deal* • FREE Home Energy Audit (normally $249) *Not valid during real estate transactions. • $250 Off Crawl Space Mold Services* • $500 Off Home Standby Generators* • $300 Off Crawl Space Dehumidifier Systems* *All Specials Expire 12/31/2024 *Not valid with any other offers.

Business highlights

97 years of trusted experience
Family Owned & Operated
Emergency Services Offered
Eco Friendly

Services we offer

Air Conditioning Installation & Repairs • Furnace Installation & Repairs • HVAC Replacement • Insulation Services • Air Duct Cleaning • Dryer Vent Cleaning • FREE Home Energy Audits • Crawl Space Encapsulations • Crawl Space Repair • Home Generator Installations • Air Quality Solutions • Humidifiers • Dehumidifiers • Duct Replacement • Duct Repair • FREE HVAC Service Calls with Repair • FREE Online Quotes on Air Duct Cleaning • FREE Online Quotes on New Heating & Cooling Systems • FREE Insulation Inspections • FREE Crawl Space Inspections • FREE Home Energy Audits

Services we don't offer

appliance repairs (refrigerators, dish washers, washer/dryers, etc.)

Amenities

Free Estimates
Yes
Warranties
Yes
Emergency Services
Yes


Accepted payment methods

Check
CreditCard
Financing Available
PayPal
Venmo
Zelle


Photos of past projects

Reviews

4.8100 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
86%
4
6%
3
3%
2
3%
1
2%


Rating CategoryRating out of 5
quality
4.9
value
4.5
professionalism
4.9
responsiveness
4.9
punctuality
5.0

Filter reviews by category

Showing 51-75 of 100 reviews

oscar H.
01/2022
5.0
heating & air conditioning/hvac
  + -1 more
The technicians were awesome!
Description of Work: Did heating and air
Rating CategoryRating out of 5
Yes, I recommend this pro

Response from GSM Services
Thank you so much for taking the time to leave this review!! We will let their leaders know so they can be recognized!

KARL H.
12/2020
5.0
insulation
  + -1 more
Very honest and knowledgeable
Description of Work: Insulation consult

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Response from GSM Services
Thank you so much!! Please let us know if you ever need anything!

Bill S.
12/2018
5.0
heating & air conditioning/hvac
  + -1 more
The whole process went very well
Description of Work: Inspection of heating system

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Ralph P.
05/2018
5.0
heating & air conditioning/hvac
  + -1 more
excellent work
Description of Work: annual check up for air conditioner

Rating CategoryRating out of 5
quality
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Brian S.
05/2018
5.0
heating & air conditioning/hvac
  + -1 more
Excellent all away around
Description of Work: Complete HVAC system

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$8,250

Dave and Beverly C.
02/2018
5.0
heating & air conditioning/hvac
  + -1 more
Diagnosis and fix were accurate
Description of Work: Repairs to gas heating system

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,200

Dan W.
09/2011
5.0
heating & air conditioning/hvac
  + -1 more
I called GSM on Monday the 25th of July and received an appointment on the 28th of July with an approximate time between 12:00 noon and 2:00 PM. Greg Paxton arrived at 12:00, and performed the maintenance check. The system still heats and cools the house fine, but Greg showed where the system was drawing more amps than it should, even after the coils had been cleaned. This system is about 20 years old and I am sure it is reaching the end of its life. GSM has been performing the annual check up on this system fro the last 4 years or so. Everyone from the office to the servicemen who have come to this house have been most courteous and professional. When I decide to replace the unit, GSM will probably get the job if they have the right system. This current system was installed by IG Watson Heating and AC, but had went out of business. Four years ago,I had called GSM to see if they serviced upper Cleveland County. Although I was not able to get an annual contract, they have come out each year when I called to inspect/service my unit. I have been impressed with all the servicemen who have come out. No one has tried to high pressure me to buy a new system.
Description of Work: GSM provided annual check up of our Lennox gas pack system. They provided a full check of the system, cleaned the outside unit.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$89

Sharon G.
08/2011
5.0
heating & air conditioning/hvac
  + -1 more
It turned out fine. They came out pretty quick. They seemed helpful with some stuff I could do myself.
Description of Work: They fixed the air conditioning for us.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$175

Nancy B.
07/2011
5.0
heating & air conditioning/hvac
  + -1 more
I have used them since 1994. They are good. I think they are very reputable.
Description of Work: They service my air conditioner.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Tim S.
04/2011
5.0
heating & air conditioning/hvac
  + -1 more
The workers arrived on time and were done in about 3 hours. They were very professional and friendly. The house was a little messy when they were done (drywall dust all over the kitchen) but all in all, I would use them again.
Description of Work: We had some air flow issues in the kitchen and Gastonia Sheet Metal came and advised us to add a register in the kitchen to help evacuate the heat. They also suggested a new thermostat that had features my previous thermostat did not have. Both suggestions have worked great.

Rating CategoryRating out of 5
quality
4.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,050

Arthur P.
04/2011
5.0
heating & air conditioning/hvac
  + -1 more
They were really great. A good company to work with.
Description of Work: They came out and did work on the air conditioning unit and heating unit.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Emily W.
04/2011
5.0
heating & air conditioning/hvac
  + -1 more
They responded properly and they did a good job. I have used them for a number of services in the past. I have never had the need for any major replacement or repair. It has basically been checking system and its components to make sure that everything is working properly. They are always here when they say they are going to be here. The technician seem to be knowledgeable in what they do.
Description of Work: Gastonia Sheet Metal Works Inc set the control in my existing heating and air conditioning system about three months ago.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$100

SUSAN F.
02/2011
5.0
heating & air conditioning/hvac
  + -1 more
Over all service was prompt, honest and professional.
Description of Work: Called for help with furnace on the weekend and even though I was not a regular customer they came to help with out a long wait. They explained everything they did and why. Even did general maintenance. Very professional.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$200

Donald Y.
01/2011
4.0
heating & air conditioning/hvac
  + -1 more
They gave me some pretty good options on getting my heat replaced. They seemed to be knowledgeable in what they were doing. I have been in service with them for a while. We had some bad weather when they were in the process of putting it in. They still have a separate item that they haven't done yet. I haven't paid the final bill yet. They did have a miscalculation during the job that slowed it down a bit.
Description of Work: They replaced my heating system.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$5,000

Carrie Q.
01/2011
3.0
heating & air conditioning/hvac
  + -1 more
The first time we called the technician to ask for a revised quote he asked us to fax over a copy of the original quote and he would get back with us. We asked why he wouldn't have a copy and he said he didn't remember the house ---he was just there 1-2 weeks earlier. Then we called to inquire a few days later to see if he had received an updated quote for us and we never heard back. It surprises me that a week before Christmas a company would turn down a $13K - $16K job. Needless to say, I think the company is disorganized and non-responsive.
Description of Work: Gastonia Sheet Metal was very prompt and responsive when we called them to give us a quote on replacing two 2-Ton Heat Pumps in our 3600 square foot home. Their quote was more expensive than a few other competitors, but the technician that came to our house had such a better knowledge than several of the others that we decided to call him back and ask him for a quote on installing two 2-Ton Dual Fuel Heat Pumps as well as two new furnaces.

Rating CategoryRating out of 5
value
4.0
professionalism
3.0
responsiveness
3.0
punctuality
4.0

$13,000

Ellen T.
10/2010
5.0
heating & air conditioning/hvac
  + -1 more
Very thorough, only ones who checked out current system to see if it was the correct size. Highly recommend.
Description of Work: New unit (larger than previous)

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$4,000

Arthur P.
07/2010
4.0
heating & air conditioning/hvac
  + -1 more
They were very good and I liked them. They were out a couple of times and I paid $217 and I am not sure how much the next time they came out was, but it was higher. They are good and I have used them before, but maybe a little higher, but they do the job and that is good. They came out on time and got the things fixed that needed to be and they were very professional.
Description of Work: I used Gastonia Sheet Metal Works Inc. about a month ago and they fixed my air-conditioning unit.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$217

Marie Z.
05/2010
5.0
heating & air conditioning/hvac
  + -1 more
The man that came to my home was very professional; he spent time answering all my questions and was very helpful. I wanted a Lennox heating unit for my home. The other companies sold Lennox as their main brand so they were able to give me better prices.
Description of Work: I had new heating and air units for my home.

Rating CategoryRating out of 5
quality
5.0
value
3.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$9,000

MAUREEN W.
05/2010
5.0
roofing
  + -1 more
Called GSM to quote a leaking roof and fix a mess another company left me with. The quote was fair so we hired GSM. They were responsive, had excellent customer service, completed the job timely and best of all- completed the job with quality work (no leaks!). I'm confident they did a wonderful job - I wish I hired them the first time and highly recommend them.
Description of Work: Flat roof completely repaired.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

MAUREEN W.
11/2009
5.0
metal restoration
  + -1 more
They gave me an estimate beforehand. It took several times for them to come out. They were on time for the work. They did everything that they said they were going too. I give them an A overall.
Description of Work: Gastonia Sheet Metal Works Inc. worked on several properties of mine.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$5,100

Bobbie H.
04/2009
5.0
heating & air conditioning/hvac
  + -1 more
They did a very good job. They are very good about returning my calls and are very professional. They have very good quality work. I think that their price was logical for the work that they did. They came out on time and they gave me an actual time to look for, rather than a window.
Description of Work: I have used Gastonia Sheet Metal Works Incorporated to come out and repair my air conditioner.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$463

T MICHAEL T.
10/2008
5.0
metal restoration
  + -1 more
They were extremely professional. They came out in a timely fashion. They follow through was a little bit slow. But they're one of the ones I'm considering using. I think they're a little expensive. I spoke with a Jamie Sharpe, and he was the comfort adviser. He was very polite and nice.
Description of Work: They came out to my house to perform a quote check.

Rating CategoryRating out of 5
professionalism
5.0
responsiveness
4.0
punctuality
5.0

Yes, I recommend this pro

DONNA C.
07/2008
5.0
heating & air conditioning/hvac
  + -1 more
We have used them for ten years they are very quick to respond. We have a service contract with them. Their technicians are wonderful! WE HAVE A SERVICE CONTRACT WITH THEM. We have a service contract with them for the last ten years. Their service is wonderful have never had a reason to complain. They are quick to respond when we call.
Description of Work: The unit was not cooling so they came out and checked it and they had to put in some freon.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$136

daniel C.
07/2008
5.0
heating & air conditioning/hvac
  + -1 more
We have three units and they come twice a year to check them. They are knowledgeable and they do a great job with the inspections. I needed to call them for some wiring and they were very responsive. I haven't checked any other companies so I don't have anything to compare the pricing to.
Description of Work: They do a complete inspection of the furnace and air conditioners.

Rating CategoryRating out of 5
quality
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$400

Vanya W.
05/2007
1.0
heating & air conditioning/hvac
  + -1 more
They asked me to send a detailed e-mail describing what was wrong with the A/C so they could know what to look for when they came, so I did. They said it sounded really bad, and they wanted to delay the visit so they could bring a representative from their Carrier distributor out with them. As soon as they called the distributor, though, they stopped talking to me, and then finally dropped me several weeks later. This is not the only Carrier dealer who has done this to me. My A/C was destroyed by one Carrier dealer, and now not only is Carrier not helping me (or disciplining that dealer), they are actually preventing any other Carrier dealers from helping me either. I am sticking with Trane dealers from now on. Not only does Carrier not honor it's "dealer satisfaction guarantee", but they actually leave you out in the cold once one of their dealers screws up. You can't even pay them to fix their own mistakes.
Description of Work: I called them to look at my A/C that was screwed up by another Carrier dealer.

Rating CategoryRating out of 5
quality
1.0
professionalism
1.0
responsiveness
1.0
punctuality
1.0


Contact information

407 E Long Ave, GASTONIA, NC 28054

https://www.gsmsince1927.com/

Service hours

Sunday:
8:00 AM - 8:00 PM
Monday:
8:00 AM - 8:00 PM
Tuesday:
8:00 AM - 8:00 PM
Wednesday:
8:00 AM - 8:00 PM
Thursday:
8:00 AM - 8:00 PM
Friday:
8:00 AM - 8:00 PM
Saturday:
8:00 AM - 8:00 PM


Licensing

Bonded

Insured

Licensed*

Trade License Number
11953 - NC: 3899 - SC: M2002

Eco-friendly Accreditations

LEED Accredited Professional
No
Energy Star Partner
Yes
EPA Lead-Safe Certified
Yes
Use Green Products or Work Practices
Yes
State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our State Contractor License Requirements page.

*Contact business to see additional licenses.


Service Categories

Heating and Air Conditioning,
Insulation,
Energy Efficiency Auditing,
Metal Fabrication & Restoration,
Dryer Vent Cleaning,
Air Duct Cleaning,
Basement Waterproofing,
Roofing

FAQ

GSM Services is currently rated 4.8 overall out of 5.

Sunday: 8:00 AM - 8:00 PM

Monday: 8:00 AM - 8:00 PM

Tuesday: 8:00 AM - 8:00 PM

Wednesday: 8:00 AM - 8:00 PM

Thursday: 8:00 AM - 8:00 PM

Friday: 8:00 AM - 8:00 PM

Saturday: 8:00 AM - 8:00 PM

GSM Services accepts the following forms of payment: Check,CreditCard,Financing Available,PayPal,Venmo,Zelle
Yes, GSM Services offers free project estimates.
Yes, GSM Services offers eco-friendly accreditations.
No, GSM Services does not offer a senior discount.
Yes, GSM Services offers emergency services.
Yes, GSM Services offers warranties.
GSM Services offers the following services: Air Conditioning Installation & Repairs • Furnace Installation & Repairs • HVAC Replacement • Insulation Services • Air Duct Cleaning • Dryer Vent Cleaning • FREE Home Energy Audits • Crawl Space Encapsulations • Crawl Space Repair • Home Generator Installations • Air Quality Solutions • Humidifiers • Dehumidifiers • Duct Replacement • Duct Repair • FREE HVAC Service Calls with Repair • FREE Online Quotes on Air Duct Cleaning • FREE Online Quotes on New Heating & Cooling Systems • FREE Insulation Inspections • FREE Crawl Space Inspections • FREE Home Energy Audits
appliance repairs (refrigerators, dish washers, washer/dryers, etc.)

Contact information

407 E Long Ave, GASTONIA, NC 28054

https://www.gsmsince1927.com/

Service hours

Sunday:
8:00 AM - 8:00 PM
Monday:
8:00 AM - 8:00 PM
Tuesday:
8:00 AM - 8:00 PM
Wednesday:
8:00 AM - 8:00 PM
Thursday:
8:00 AM - 8:00 PM
Friday:
8:00 AM - 8:00 PM
Saturday:
8:00 AM - 8:00 PM