GSM Services

1535 W May Ave
Gastonia, NC 28052
We are open 24 hours a day, 7 days a week!
In business since 1927
NC HVAC License Number: 03899

GSM Services is the energy efficiency contractor in NC that specializes in providing superior service to each and every customer. With the unique whole-house approach to home energy savings, GSM Services is committed to helping local homeowners reduce energy costs and improve their home's comfort and energy efficiency.

These experts at Dr. Energy Saver Charlotte have prior experiences in the heating and cooling industry having been a part of their sister company Gastonia Sheet Metal (GSM).

They pride themselves on having the opportunity to provide local homeowners with comfort and peace of mind - in fact they do it every call, every customer, every day. The energy saving services include:

  • Air sealing (blower door test, caulking, etc)
  • Geothermal
  • Generators
  • Air Conditioning (ductless, central, dehumidifiers, etc.)
  • Home Insulation (wall insulation, attic insulation, Wall Insulation, Basement Insulation, etc.)
  • HVAC (heating and cooling systems, HVAC efficiency)
  • Ductwork (duct leakage, air duct sealing, air duct repair)
  • Radiant barriers (roof and attic radiant barriers, installation)


GSM has been the local expert since 1927 and has earned the Chamber of Commerce small business of the year award twice and has maintained their title as the Best of Gaston Heating & Air Contractor for four years.

Dr. Energy Saver Charlotte will follow in GSM's footsteps by becoming heavily engaged in the local community and donating time and resources to local non-profit organizations such as the United Way, Habitat for Humanity, and the Flight of Honor.

In addition to their community interaction, they're also a member of the Gaston Chamber of Commerce; Home Builders Association; Mechanical Contractors of NC; Plumbing, Heating, Cooling Contractors Association, ACCA, and National Comfort Institute.

GSM Services services Charlotte, Gastonia, Huntersville, Lowel, Mount Holly, Stanley, Alexis, Belmont, Bessemer City, Cherryville, Cramerton, Dallas, NC as well as Clover and York, SC.

Offer details

FREE Air Cleaning System with New Heating & Cooling System
By William L.
By Pat G.
"The installers and technicians are wonderful! I couldn't ask for better. I trust them to do what's..."
By Marie L.
"I can't say enough good things about GSM! They always do a great job for me. No complaints. "
By Charles S.
"We never have any complaints, and we are always satisfied with their quality of work..."
Tony and Linda R.
Forest City, NC
It was well worth the cost and am already seeing a difference in the AC running less.
Ruth E.
Lawndale, NC
I have done business with GSM for a good many years and have always had good service. I can think of no improvements!
Sandy C.
Fallston, NC
I heard about GSM from a past customer and I love having someone who can also change filters and my smoke alarm batteries.
GSM Services Before & After
  • Before and After - Crawl Space - Belmont NC
    Before
    Before and After - Crawl Space - Belmont NC
    After

    Before and After - Crawl Space - Belmont NC

    Great example of a before and after crawl space encapsulation.  Our Dr. Energy Saver crew removed all insulation and completely sealed off the crawl space to make it a sealed conditioned space.
  • AC Unit Cleanup in Lawndale, NC
    Before
    AC Unit Cleanup in Lawndale, NC
    After

    AC Unit Cleanup in Lawndale, NC

    GSM Services cleaned an AC unit to improve its efficiency in Lawndale, NC.
  • Heating System Precision Tune Up
    Before
    Heating System Precision Tune Up
    After

    Heating System Precision Tune Up

    Our Service Advisors work hard to keep you comfortable! We thoroughly clean and service your system to bring it back to life.  Regular maintenance extends the life of your heating system.  
  • HVAC Install in Shelby, NC.
    Before
    HVAC Install in Shelby, NC.
    After

    HVAC Install in Shelby, NC.

    AC & Furnace Replacement in Shelby, NC   
Top Place to work Charlotte 2019

Top Place to work Charlotte 2019

Best of Gaston 2019

Best of Gaston 2019

Best Of Gaston 2018 - Heating and AC Company

Best Of Gaston 2018 - Heating and AC Company

Mike M

DES Field Team Leader

Brent F

Sales Team Leader

Shawn M

Sales Team Leader

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