GAC Services is a residential cooling, heating, and electrical contractor setting new standards in the Maryland HVAC and electric market. Since 1970, we’ve developed a strong reputation for providing the Montgomery County and Frederick County areas with reliable cooling and heating services. In 2014, we expanded our service offerings to include electrical services—allowing us to offer our customers the same great service in a new area of business. Additional DBA: Gaithersburg Heating & Cooling
I am SO pleased with this experience with GAC and highly recommend them! OUTSTANDING information and research on our behalf by Kelly for estimate options and finding the best unit and price for our needs. Chris was very impressive when he came to our home for preparation of the HVAC air handler/heat pump installment. Top notch work by John and the GAC crew on the actual work putting in my unit. They gave us the option and were qualified to run/install a new wire for our electric needs to have all energy savings of the equipment. Easy scheduling with Monica and follow-up too. ALL the GAC staff were happy to answer our various questions in full detail so we understood everything in this project and could make informed decisions. GAC found a high quality unit (Bryant) that suited our needs AND qualified for a PEPCO rebate, which they quickly filed on our behalf. We have been customers for years with GAC for maintenance and with this install, plan to be for years to come.
Description of Work: Replacing HVAC system
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$11,320
Frank S.
10/2017
5.0
heating & air conditioning/hvac
+ -1 more
Everything went like clockwork. Five guys showed up. Each one had his part of the work. They were polite, professional and knowledgeable. The final product was excellent.
Description of Work: Installed new HVAC in attic.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
Patricia S.
08/2017
5.0
heating & air conditioning/hvac
+ -1 more
They came out the next day. They're very good and I am always happy with the service. I have been using them for 5 years. They take good care of me.
Description of Work: My A/C unit stopped working. They came out and gave it a jump start.
Rating Category
Rating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$299
Oscar B.
08/2017
5.0
heating & air conditioning/hvac
+ -1 more
My experience was fine. I went with this company instead of another company because of the reviews I read on Angie's List. It took them about a half a day to install the air conditioning unit. I think it was 3 workers that came out.
Description of Work: They installed an HAVAC unit.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$8,000
Richard M.
08/2017
5.0
heating & air conditioning/hvac
+ -1 more
Very happy with them. I have used them since I first bought the house in the early 80's. They installed my system. They let me know what they do or don't find when they come for the inspections. They used to have a piece of paper that was what they found or didn't. Now it's automated so you get an email.
Description of Work: They came out in the Spring for the general yearly inspection.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
Richard M.
08/2017
5.0
electrician
+ -1 more
They have recently included electricians to their company.
Description of Work: They did some electrical work for me. It was just a couple minor things. I had a florescent light that I wanted converted to LED. Plus they did a couple of outside outlets.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
Jane B.
08/2017
5.0
heating & air conditioning/hvac
+ -1 more
Excellent. The initial visit from the person looking at our needs and giving us an estimate was very impressive. We had also had an estimator from Cropp Metcalf who was NOT helpful and gave us a two line estimate that he jotted down at our kitchen table just before he left. The price was much more reasonable from GAC and saved us a considerable amount. When they came to do the installation, the crew was efficient, friendly and knowledgeable, and everything went so smoothly. We are so pleased with our new system and will happily recommend GAC.
Description of Work: Purchase and installation of a complete new furnace/air conditioning system.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$7,345
Robert H.
06/2017
5.0
heating & air conditioning/hvac
+ -1 more
Very wrk. Technician did a great job of explaining things while he did a thorough inspection.
Description of Work: Annual HVAC tube up.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
Frederick T.
04/2017
5.0
heating & air conditioning/hvac
+ -1 more
Decent work performed by the technician.
Description of Work: Semi-annual maintenance of two Bryant Heat Pump/Air Conditioners.
Rating Category
Rating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$240
Jonathan P.
04/2017
5.0
heating & air conditioning/hvac
+ -1 more
Fritz B. was my sales rep and he clearly knew what he was doing, including making a few minor recommendations that were in my financial interest. Easy to set up the scope of work. The grew was great, came in and did a great job, took about 6 hours. They even rerouted the exhaust flue for my hot water heater even though they did not replace the heater because the install guy Chris said "they did this dumb". Overall a great experience and I would recommend.
Description of Work: They did a complete overhaul of my gas heating/ac unit. Remove and replace.
Rating Category
Rating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$11,000
Allison G.
03/2017
5.0
heating & air conditioning/hvac
+ -1 more
Another technician came out, identified and fixed the problem AT NO CHARGE because he said it should have been addressed during the bi-annual check, before it created a problem with the unit. This is not the first time we've have exceptional customer service from them, either. Highly recommend them.
Description of Work: We've been with GAC for a few years now and have been extremely happy. Our most recent experience was when our heat pump went out just a month after our bi-annual check.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
Jonathon W.
02/2017
5.0
heating & air conditioning/hvac
+ -1 more
GAC's office staff is amazing! They were incredibly friendly over the phone and were able to schedule my emergency heat call within hours. I had an issue with the WiFi thermostat that came with my new system. At my request they replaced it with a regular thermostat and made it right by giving me a refund. I will definitely use GAC again!
Description of Work: When my furnace went out during a cold snap, GAC quickly came to my home to repair the issue. They found a problem with my 22 year old gas furnace and recommended a replacement. After getting several bids, I went with GAC Services. They replaced my gas furnace and central air conditioner.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$7,800
Domenic A.
02/2017
5.0
heating & air conditioning/hvac
+ -1 more
Angie's List reviews made me go with GAC Services for a new furnace and air conditioning unit. Five mechanics showed up early in the morning in three trucks. They were clean cut young men and very polite. They made a lay down area in my basement with blankets. They wore covers over there shoes while in and out of the house. They were very respectful of my home. They worked non stop until 5:00 PM. They had a separate sheet metal mechanic that showed up and did really nice sheet metal work. I was impressed. After a year went by my thermostat went out and they came out and replaced it free of charge. I signed up for the maintenance contract and they come out twice a year . Once in the winter and once in the summer. Another part went bad after two years and it was under warranty and they replaced it free of charge. They are honest and reliable. I highly recommend them.
Description of Work: Replaced furnace and air conditioning unit. Reasonable price. Quality work.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$8,500
Ryan F.
02/2017
5.0
heating & air conditioning/hvac
+ -1 more
They cost is included in our yearly contract which is $150 I think. They were efficient, on time and they explained everything they were doing and recommendations for the future but they weren't pressuring me into anything.
Description of Work: They just did maintenance on our furnace system.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
eric W.
01/2017
4.0
heating & air conditioning/hvac
+ -1 more
Ok, accomplished task as described.
Description of Work: Replace a small fan motor
Rating Category
Rating out of 5
quality
5.0
value
3.0
professionalism
5.0
responsiveness
5.0
punctuality
4.0
Yes, I recommend this pro
eric W.
12/2016
4.0
heating & air conditioning/hvac
+ -1 more
OK. They charged for a service call in addition to the cost of the replacement part and installation. Other service providers waive the cost of the service call if you have them fix the problem on the spot.
Description of Work: Fix furnace.
Rating Category
Rating out of 5
quality
5.0
value
3.0
professionalism
5.0
responsiveness
5.0
punctuality
4.0
Yes, I recommend this pro
$750
Jim and Nadine T.
11/2016
5.0
heating & air conditioning/hvac
+ -1 more
I would use them again in the future.
Description of Work: I've used GAC Services for heating & A/C service. They did the annual check up.
Rating Category
Rating out of 5
Yes, I recommend this pro
Jim and Nadine T.
11/2016
5.0
heating & air conditioning/hvac
+ -1 more
Their professionals are extremely good at what they do cause my dad was a builder so I know construction real well. They're extremely knowledgeable what to do, they explain everything, they show you everything and they put it in and everything works like a charm.
Description of Work: I use GAC Services for heating and a/c services. They replaced my furnace.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
Francesca P.
09/2016
5.0
heating & air conditioning/hvac
+ -1 more
They have an excellent process in place and really know what they are doing. They had the usual sales visit, and sent an estimate to my email with links embedded so that we could easily review the products they were suggesting. Once we decided, they set up 2 visits: the first was a "quality assurance" (QA) and the second visit was for installation. At the QA visit, the technician recommended that we downsize from the suggested model, since that model would have overpowered our smaller vents and caused alot of noise and made the unit less efficient. Not only did this mean a smaller sale, they also offered us a discount for the inconvenience. We still wanted a 2-stage model, and they worked with us to find the right model for our needs without moving our installation date. We have been very happy with what they installed, and the installation was really efficient. I would completely recommend them.
Description of Work: We needed a heat pump replaced
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$7,000
Elizabeth C.
09/2016
5.0
heating & air conditioning/hvac
+ -1 more
It is all good, this is why I always kept going with the same thing.
Description of Work: I used GAC Services for heating and A/C service. just the annual maintenance and at our previous residence they replace the total H back air conditioning and heating system.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
Bessie T.
08/2016
5.0
heating & air conditioning/hvac
+ -1 more
The service was good, one technician came out and discovered the problem, another technician that was more experienced was sent out and two other technicians fixed the problem. I have been using them a long time and they installed my replacement unit.
Description of Work: Fixed a freon leak.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
Stacie G.
07/2016
5.0
heating & air conditioning/hvac
+ -1 more
They were prompt and they fixed it. It wasn't cheap. It was $600 or something just to replace the capacitor and add Freon, which seemed like an awful lot of money to me. They were able to come quickly, when we needed them to. They fixed it right away. I was happy about that. They didn't try to sell us a whole new unit, which would have been thousands of dollars. They didn't make us wait for them to come back. So, I was very happy about that. He was in and out, probably within half an hour, from what my husband told me.
Description of Work: Our A/C broke down and apparently it needed a capacitor.
Rating Category
Rating out of 5
Yes, I recommend this pro
Linda H.
07/2016
5.0
heating & air conditioning/hvac
+ -1 more
They were fantastic. They were very organized. They installed the whole system during a snow storm.
Description of Work: They completely reinstalled my heating and A/C system.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$8,200
Pam A.
06/2016
5.0
heating & air conditioning/hvac
+ -1 more
A great crew of four/maybe five men showed up exactly as scheduled on a horrible rainy day to do their magic. It was raining so hard, they installed a tent outside to do all their work on the air conditioning unit which required working with high voltage wiring in a driving rain storm The crew worked extremely well together with each person being responsible for creation parts of the system. Kind of like watching a crack drill team. They removed some extremely dirty furnace parts but left no dirt in our house. Except for this bright new shining furnace, one would not even know they had come and gone. Major job of re-wiring new unit also, as all the old wiring would not work on new system Both units ....air and heat worked perfectly from the get go, as we did need heat for several days and then switched over to air as we moved into May. Absolutely super company to work with all around and will use them for our semi annual system checks. You need a new system, don't be foolish......call these people because they know what they are doing.
Description of Work: Replaced and installed new Bryant heating and air conditioner unit to replace a twenty-five year old unit.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$8,900
Michael T.
06/2016
4.0
heating & air conditioning/hvac
+ -1 more
It takes a long time sometimes to get an appointment with them.
Description of Work: I have a service contract with them and they did a regular tune-up.
All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our State Contractor License Requirements page.
*Contact business to see additional licenses.
Service Categories
Heating and Air Conditioning,
Electrical,
Generator,
Drain Cleaning,
Wells and Pumps,
Water Filtration and Softening,
Water Heaters,
Plumbing
FAQ
GAC Services is currently rated 4.9 overall out of 5.
Sunday: 8:00 AM - 12:00 PM
Monday: 7:00 AM - 6:00 PM
Tuesday: 7:00 AM - 6:00 PM
Wednesday: 7:00 AM - 6:00 PM
Thursday: 7:00 AM - 6:00 PM
Friday: 7:00 AM - 6:00 PM
Saturday: 8:00 AM - 12:00 PM
GAC Services accepts the following forms of payment: Check,Discover,MasterCard,Visa