GAC Services

★★★☆☆ 3.3 / 5 (220)
Emergency Call


: 227 E Deer Park Dr, Gaithersburg, MD 20877
: (240) 428-2479
: https://gacservices.com/?utm_source=Yelp

Company Overview

Esteemed HVAC, Heating and Cooling & Electrical Contractor.

Our investment in training the finest HVAC technicians, plumbers, and electricians, along with our focus on putting clients first, has led to our expansion and accomplishments. We are pleased to offer priority maintenance, repairs, installations, and replacements, along with membership plans designed to meet our customers' home comfort and safety needs. With more than 50 years of experience serving Gaithersburg and nearby regions, we excel in providing exceptional customer service and high-quality work to all our clients. Our goal is to foster enduring client relationships by delivering professional, honest, reliable, and valuable personalized indoor comfort and energy solutions. Call us now to arrange your service with GAC Services and witness the GAC Difference!

Operating out of Gaithersburg, MD, GAC Services is a residential contractor focused on cooling, heating, plumbing, and electrical services, raising the bar in the Maryland HVAC and electrical sector. Since 1970, we have built a solid reputation for delivering dependable cooling and heating services to the Montgomery County and Frederick County regions. In 2014, we expanded our range of services to incorporate electrical work, allowing us to deliver the same high-quality service to our customers in a new field.

Tony Petrolle began his journey at GAC as a warehouse helper in 1991. He has since advanced to become the General Manager of GAC Services.

Tony advocates for leading by example and believes in the importance of giving more than receiving. Prioritizing people and doing whatever it takes to succeed are key elements in managing a thriving home services business.

Tony is dedicated to enhancing the lives of others through top-quality home services and systems that ensure comfort year-round.

With Tony at the helm, GAC Services has experienced significant growth, and the business anticipates many more prosperous years serving the Gaithersburg area.

Business Services

  • Bathtub installation
  • Bathtub repair
  • Circuit breaker installation
  • Circuit breaker repair
  • Doorbell installation
  • Drain installation
  • Drain repair
  • Electric inspection
  • Electric installation or replacement
  • Electric panel installation
  • Electric panel repair
  • Electric repair
  • Wire installation
  • Wire repair
  • Electric vehicle charging station installation
  • Faucet installation
  • Faucet repair
  • Garbage disposal installation
  • Garbage disposal repair
  • Generator installation
  • Generator repair
  • HVAC installation or replacement
  • HVAC system repair
  • HVAC system maintenance
  • Light fixture installation
  • Light fixture repair
  • Outlet installation
  • Outlet repair
  • Plumbing inspection
  • Plumbing installation or replacement
  • Plumbing repair
  • Sewer repair
  • Shower installation
  • Shower repair
  • Sink installation
  • Sink repair
  • Sump pump installation
  • Sump pump repair
  • Toilet installation
  • Toilet repair
  • Water heater installation
  • Water heater repair
  • Water pipe installation
  • Water pipe repair

Business Location & Hours



Mon:7:00 AM - 6:30 PM
Tue:7:00 AM - 6:30 PM
Wed:7:00 AM - 6:30 PM
Thu:7:00 AM - 6:30 PM
Fri:7:00 AM - 6:30 PM
Sat:7:30 AM - 4:00 PM
Sun:7:30 AM - 4:00 PM

Recommended Customer Reviews

Patty M.
★☆☆☆☆

I had a horrible experience with this company. They sent a technician out to do a routine maintenance chec on my A/C unit (biannual check). I was pleased with the service; even signed a one-year contract. The next morning, I realized I had no hot water. I called the company and indicated that I wasn't sure if it was due to them or not but that I thought it was very coincidental, given my gas heat pump was within inches of the A/C unit that had been serviced. I left my cell number with the company representative and she told me she'd have their service manager call me back. Late that afternoon, the company representative indicated that the service manager had left me a message and not heard back from me but that they would not be able to send out a technician to correct the problem because it was not their fault; it was just a coincidence. I came home from work and the service manager had called my home number, not my cell number as requested; he left no message (I just looked at my caller ID). The next day, I called back the company and indicated that I was not happy with their decision; that I felt the company had indeed caused the problem. The company representative apologized profusely and told me she'd have someeone come out to relit my pilot light on the water heater. I thanked her. Two minutes later, the service manager called back and said they absolutely would not send anyone out. When I began to tell him that I was so dissatisfied, he said they would send someone out to relit the pilot at no charge and that the company rep would call me back to schedule the visit. The company rep called me back, told me she would schedule the visit but that I would have to pay for it. At that point, I told her that was absolutely not what the service manager just told me. Long story short, when the service manager called me back, I told him I was so disgusted by the lack of communication and unprofessionalism of his company that I wanted out of my yearlong contract (which he agreed to). Not all companies are perfect....I totally get that....but how this company handled my minor problem (what happens when it's a bigger problem?) made me realize I did not want to do business with them. I would not recommend this company AT ALL.

p.s. I had a friend come over that day and he agreed that the technician must have accidentally brushed against the dial on the water heater and that shut down the pilot light. He fixed it in a second.

Drew G.
★★★★★

GAC installed three systems for me now in my current and past home and we have never been dissatisfied. While they will not rip you off (so many other HVAC companies really try) but they are also not the cheapest. When you experience the service and work with them you will understand why they are worth every penny of the few extra bucks. Prior to installing a system they send someone out to spec everything, take measurements, ensure whatever needs to be fabricated with ducting is done before they get there on install day and then on install day it's a swat team that gets the old out and the new in. In less than 4 hours they had an old 5 ton AC and heat system completely removed and a new Bryant one in + they train you on how to use the new system. Same experience the install before that with a heat pump in an attic. They will take all old equipment and leave absolutely zero mess (and the guys are clean and work clean as well). Installs come with a year free service calls (have not needed any) and annual checkup. These guys know their job, listen to what you have to say, and get it done right the first time.

Revett C.
★★★☆☆

We have used GACH since 2008 and have a service contract with them.
In 2009 when servicing our furnace, the technician found all four fuses had blown out and replaced them.
The same happened in 2010.
So in 2011 I thought of being present when the servicing was done - only two fuses were burnt out. For some reason the technician said he'd check them again and it turned out that only one had blown out! The technician said he'd see if there was a non-inventory fuse in the truck (which there was) so I wouldn't have to pay for it as they were expensive - two fuses for $43.
This year only one fuse had burnt out and the technician replaced it and sent me a bill for $43!! The fuse cost $12.50 at Home Depot. I know there is a overhead charge when you get it from a technician. But to say one was for $43 when earlier it was two for $43.
More importantly, is it possible for fuses to burn out? These are the Heavy-Duty, Dual Element, Time-Delay 250Vac Cartridge Fuses. Thanks.

Darrell S.
★★★★☆

3 floor townhouse w/ uneven heating/cooling. Invited three companies to survey and submit their solutions. Randy from GAC clearly knew what he was doing, and not only came up with the most inexpensive (and most appropriate solution), he made several suggestions for improvements (that worked) while we were waiting for them make the new installation. They would have gotten 5-stars if I didn't have to call them to remind them to follow-up (I figured 4 weeks was more than enough time to get back to me). Once we re-established contact, they jumped right on the project and completed the install very quickly with friendly, clean service. Great job on the install- let's see how they do on the service agreement.

Eric W.
★☆☆☆☆

Their technicians came in, rewired stuff, cut a wire so system would not come on and ten tried to sell us a new system. The other HVAC guy we hired immediately saw it. Dishonest!

Richard M.
★★★★★

We had a tricky, multiple mini-split system installation in our very old house. Outstanding service and value from Tony and his crew. From the planning stage, through completion of the project, I could not have asked for greater attention to detail. I absolutely recommend Gaithersburg A/C. Great job and thanks for everything!

Karen G.
★★★★★

The team helped us pick the right unit for our home, converting from oil heat to a heat pump. Choices were based on the size of our home and explanations of differences in what they would recommend to fit our needs. (We never felt that suggestions were based on price but on efficiency) Throughout the months we have enjoyed consistent temperatures and had savings that will make the change over pay for itself in our first year. The installation team was knowledgeable, quick and efficient. They even swept up after themselves. I gladly recommend this company to others!

Susan S.
★☆☆☆☆

Lousy customer service! They installed a new air conditioning system and thermostats, then denied any responsibility when the equipment failed to properly regulate the temperature in my house or cool properly. The technician told me that I had a crappy duct system so I never should have expected that my second floor could be cooled properly.

Do NOT use this company!!!!

S F.
★★★★★

Outstanding company with wonderful customer service. After four years of AC issues and other AC companies trying to solve my air-flow problem, Gaithersburg AC & Heating figured it out and solved this with their skilled techs. I had no problem signing a Service Agreement with this company because of their reliable service and expertise.

Katherine B.
★★★★★

I have used them over and over again. The technicians are always polite and on-time. They are often able to make it out the same day by A/C or heat breaks. They are knowledgeable and patient in explaining everything to me.

web analytics
Call Us Now
Exit mobile version