Serving Gaithersburg and the Montgomery County region, GAC Services is your full-service plumbing, HVAC, and electrical team — available for residential & commercial needs. From emergency frozen pipe or water-heater repairs to furnace and air-conditioning tune-ups, whole-house generator installations, indoor air-quality upgrades, and electrical panel improvements, our licensed local team brings decades of experience, transparent pricing and respectful service you can count on. Winter is around the corner — let us keep your home or business safe, comfortable and running smoothly. Call us any time at (301) 202-1641.
Technicians consistently demonstrated professionalism, courtesy, and thoroughness in their work.
Knowledgeable Staff
Customers praised the technicians for their extensive knowledge and ability to explain issues clearly.
Timeliness
Many reviews highlighted the promptness of service, with technicians arriving on time and completing jobs efficiently.
Customer Satisfaction
Overall, customers expressed high satisfaction with the service provided, often recommending GAC Services to others.
Emergency Response
GAC Services received positive feedback for their quick response to emergency situations, particularly during extreme weather.
MG
Michael Gao
1 day ago
5.0
I have an appointment today with GAC for the semi annual inspection of my HVAC system. The technician, Daeon Johnson came and did a thorough inspection. He explained clearly what he was doing and pointed out the issues that needed to be addressed. He did a few repairs at my request. Everything he did was to my satisfaction.
TJ
Trudy Jb
5 days ago
5.0
Deivid G. (GAC Services) was professional, courteous, and quick. He arrived when the office said he would today. He had read the notes from the last visit and listened to my concerns. He provided insight into reducing a repeat of the problem.
The staff at GAC have all been professional and friendly. I had no trouble scheduling a service call. They are not cheap, but they offer good service.
JH
Jamie H
Feb 18, 2026
5.0
The technician that came to my house today was the best, most thorough tech that I’ve had in a long time. His name was Jasser, and I would definitely recommend him and want him to come back in the future!! He found the problem with my unit pretty quick, explained everything in detail so I understood, and then fixed the issue and got us back up and running pretty quick as well! Very pleased with this visit!!
AT
Anderson Toledo
Feb 14, 2026
5.0
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 much in the process. Chun did such a professional job, I decided to renew my membership. I highly recommend GAC Services to any homeowner. I have received excellent customer service every time.
MR
Mary Rogers
Feb 10, 2026
5.0
I had a great experience with the electrician from GAC, Edwin Sanchez. Scheduling online was seamless, and I was able to book a next-day appointment with no hassle. I received a call ahead of time letting me know the exact arrival window, which I really appreciated.
Edwin was professional and took the time to clearly explain the issue and walk me through a couple of estimate options so I could choose what worked best. He also explained the membership features and pricing without any pressure.
The electrical issues were fixed efficiently, the work was done thoroughly, and the entire visit was friendly and respectful of my time. Overall, a smooth, professional experience from start to finish. I would absolutely recommend GAC and will use them again.