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GAC Services

4.9
(7,849 reviews)

Business Details

227 E Deer Park Dr, Gaithersburg, MD
20877, United States
(301) 202-1641

About

HVAC ContractorPlumberElectricianAir Conditioning ContractorHeating Contractor
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.

Location

GAC Services
227 E Deer Park Dr, Gaithersburg, MD
20877, United States

Hours

MondayOpen 24 Hours
TuesdayOpen 24 Hours
WednesdayOpen 24 Hours
ThursdayOpen 24 Hours
FridayOpen 24 Hours
SaturdayOpen 24 Hours
SundayOpen 24 Hours

Reviews

4.9
7,849 reviews
5 stars
7,440
4 stars
180
3 stars
34
2 stars
33
1 star
162
  • JA
    Julie Auerbach
    Aug 14, 2026
    5.0
    We had a great experience with GAC Services! We hired them for an HVAC inspection before moving in, and when we noticed our system might be short cycling a week or two later, they came back out and waived the fee. Jesus was very knowledgeable, helpful, and took the time to explain the issue and give us tips on how to resolve it. We really appreciated how they handled the situation. Honest, professional, and trustworthy. I highly recommend GAC Services!
  • PP
    Penelope Bustin, Ph.D.
    Aug 13, 2026
    5.0
    Deon was great. He looked thoroughly at our system. He explained what was needed and why in a clear, easy to understand way. He made several good suggestions, without being at all pushy. For example, putting a mesh cover over the outdoor units to keep out leaves, etc. He never made us feel rushed. He a answered all our questions. We are glad to have worked with him.
  • LL
    Loretta Landry
    Aug 12, 2026
    3.0
    GAC services seems like a large, competent, professional provider that I would likely only use in a quick fix. In our case, when our AC quit on us, our regular AC guy was able to come out and diagnose the issue as a bad transformer, but didn't have the right one with him and was headed out of town. GAC services was easy to schedule with for the day after I called. The tech they sent was wonderful and very professional - 5 stars for him. Now for the bad, GAC Services charged us $475 to replace a $40 transformer (as per online), an issue that was already diagnosed for them, that required less than 30 minutes to install. Again, I think the company is competent and the tech we got was great, but the pricing structure that they've baked in likely to account for a company of their size's overhead, marketing, etc., left us feeling less than great and thus wouldn't plan on using them regularly or for major work.
  • TL
    Tom Lyons
    Aug 12, 2026
    4.0
    This is a two part review. The Service Technician, Phillip, was excellent - professional, knowledgeable, courteous. The online appointment booking tool was poor. The booking tool provided a window of 10 - noon, and sent us a confirmation of the appointment. However, when we had not heard from GAC by noon, we called, and learned from the live rep that they could not find record of the appointment. After much searching they found it, and were able to rebook for later in the day. Regarding Technician Philip, he tested and diagnosed the issues quickly (bad capacitor on the outside AC unit, caused by significant friction from failing bearings on the fan motor), and replaced the capicitor immediately, and noted that the motor would have to be obtained from a supplier and could take few days. He anlso checked the inside unit, which also had an old capacitor that was on its way out and replaced that. He explained the steps taken to perform his diagnosis in layman’s terms, and was very patient with questions. He also provided pictures of all his measurements and readings from his tools as support. We greatly appreciated his coming to assist us at the end of his day as an unexpected add-on, due to the scheduling issue. The motor unit is scheduled to be installed today, and we look forward to having all the work completed. Thank you!
  • GD
    Gagan Deol
    Aug 3, 2026
    5.0
    I had an excellent experience with GAC plumber, Jaja and their master plumber, Luis on two separate days to replace my Pressure Reduce Valve (PRV) and outdoor faucet. They were both professional, punctual, and highly knowledgeable. They quickly diagnosed the problem, explained everything clearly, and completed the repair efficiently with great attention to detail. The quality of their work was outstanding, and each of them left the area clean after finishing up. Their skill, honesty, reliability, and amazing customer service truly stood out. I highly recommend them and will definitely call them again for any future plumbing needs.

Frequently Asked Questions About GAC Services

What services does GAC Services offer?

GAC Services provides heating, plumbing, electrical, and air conditioning contractor services.

Where is GAC Services located?

GAC Services is located at 227 E Deer Park Dr, Gaithersburg, MD 20877, US.

Brand Certified Facts from GAC Services

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Certified August 23, 2026Yext Knowledge Graph
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