GSM Services
GSM Services is a HVAC provider serving Harrisburg, NC. Rated 4.9★ with 3,703 Google reviews. See services, review signals, and request a quote.
HVACHarrisburg, NC
On this page
Company overview
- TradeHVAC
- Service areaHarrisburg, NC
- Google rating4.9★ (3,703 reviews)
- Phone(704) 864-0344
- Address407 E Long Ave, Gastonia, NC 28054, USA
- NC Board of Examiners LicenseL.03899 (ACTIVE)
Photos
Photos from GSM Services
What customers say
“I’ve had a great experience with GSM. The sales person (Tim) was great! Their pricing is very transparent, which is difficult to come across in this industry. Tim also submitted a rebate request with …”
“Andrew came to my home and installed Softstart technology to both my heat pumps so they will start up quieter, and run off my generator when and if my power goes out. He was friendly, told me exactly …”
“Two very respectful, courteous, young men arrived on time, after sending me a text alerting me to their arrival window. No surprises they kept me updated every step of the way. They respected my home.…”
“GSM is a service that I NEVER regret paying for. The techs are ALWAYS nice. The dispatchers are ALWAYS sweet on the phone. They have many many available appointments per week, and the regular maintena…”
“I have been using GSM for quite a few years now and they have always been good to me. Im part of the Loyalty club and they do a HVAC checkup on my system twice annually and have helped me to catch a f…”
Key highlights
Strengths
- Highly rated (4.9★ average)
- Large review volume (3,703 reviews)
Things to ask
- Confirm availability for your area and timeline
- Ask about warranty terms on parts and labor
- Request a written estimate before work begins
- Ask about payment plans or financing
Explore nearby research
Frequently Asked Questions
What services does GSM Services offer?
GSM Services provides: HVAC diagnosis, repairs, and full system installs. They serve residential and commercial customers in Harrisburg, NC.
What is GSM Services's rating?
GSM Services has a 4.9 out of 5 star rating based on 3,703 Google reviews.
Is this company licensed in North Carolina?
Yes. License number: L.03899. Status: ACTIVE. You can verify on the North Carolina State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors lookup at https://portal.ncblpc.org/lookup.
Does GSM Services offer emergency service?
Contact them directly to ask about emergency availability and after-hours service.
How do I request a quote?
Use the CTA below to submit your ZIP. You can message this company alongside two or three other local pros for easy comparison.
Licensing verified 2026-04-24. Reviews refreshed 2026-04-24.
Licensing data: North Carolina State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors · Company data: verified business records + Google Business profile
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