GAC Services
GAC Services is a HVAC provider serving Baltimore, MD. Rated 4.9★ with 7,278 Google reviews. See services, review signals, and request a quote.
HVACBaltimore, MD
On this page
Company overview
- TradeHVAC
- Service areaBaltimore, MD
- Google rating4.9★ (7,278 reviews)
- Phone(301) 202-1641
- Address227 E Deer Park Dr, Gaithersburg, MD 20877, USA
Services offered
- installation
- repair
- inspection
Photos
Photos from GAC Services, Patricia Delafuente US, Scott Van Pelt
What customers say
“GAC Services Installation Review I chose GAC because of their “Quality Assurance” program and promise of professional installation. Unfortunately, my experience was the opposite. The crew arrived un…”
“I am very satisfied with the technician GAC sent. Chun did fantastic. Not only was he knowledgeable; he was also friendly and patient. I paid to have my furnace and pumps checked, and I learned so muc…”
“Kevin Bateman from GAC came out to do maintenance on my HVAC system today. It was a pleasure dealing with him. He was professional, highly knowledgeable and put us at ease in knowing more about the …”
“We had a great experience with Max German for a gas issue at the house. Max came out promptly on the same day, quickly diagnosed the issue, and fixed it efficiently. He did not try to upcharge or sell…”
Key highlights
Strengths
- Highly rated (4.9★ average)
- Large review volume (7,278 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 GAC Services offer?
GAC Services provides: installation, repair, inspection. They serve residential and commercial customers in Baltimore, MD.
What is GAC Services's rating?
GAC Services has a 4.9 out of 5 star rating based on 7,278 Google reviews.
Is this company licensed in Maryland?
All listed providers have a verified Maryland contractor license at time of publication. You can verify on the Maryland Department of Labor — Board of Heating, Ventilation, Air-Conditioning, and Refrigeration Contractors (HVACR Board) lookup at https://www.dllr.state.md.us/cgi-bin/ElectronicLicensing/OP_Search/OP_search.cgi?calling_app=HVAC.
Does GAC 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 2026-04-23. Reviews refreshed 2026-04-23.
Licensing data: Maryland Department of Labor — Board of Heating, Ventilation, Air-Conditioning, and Refrigeration Contractors (HVACR Board) · Company data: verified business records + Google Business profile
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