GAC Services

Heating and Air Conditioning, Electrical, Generator,

About us

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

Business highlights

55 years of trusted experience

Services we offer

HVAC, Duct Sealing, Cooling, Heating, Electric, Generators

Services we don't offer

Duct Cleaning

Amenities

Free Estimates
Yes
Warranties
Yes


Accepted payment methods

Check
Discover
MasterCard
Visa

Photos of past projects

Reviews

4.8279 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
89%
4
6%
3
2%
2
2%
1
1%


Rating CategoryRating out of 5
quality
4.9
value
4.7
professionalism
4.9
responsiveness
4.9
punctuality
4.9

Filter reviews by category

Showing 251-275 of 279 reviews

Linda S.
04/2015
5.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: I have a service contract with GAC. They come out and check and tune up (for a better word) my heater and air conditioning 2 x a year. When I need to call for service they are very prompt in getting a service person to my home.

Rating CategoryRating out of 5
quality
4.0
professionalism
4.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Ronald W.
03/2015
5.0
heating & air conditioning/hvac
  + -1 more
I had no issues.
Description of Work: They repaired my furnace.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$270

Carlos C.
03/2015
5.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: They replaced gas heater and electric air conditioning units. Estimate included various options. Financing was available. They did an excellent job in a few hours in replacing both units. Very professional. Included one year service for units.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$5,000

Christopher D.
02/2015
5.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: The furnace was sending erro codes to the controller. GAC first had me read the codes over the phone to see if they needed to come out. After hearing the furnace's reported codes, they sent out a service person who went through the whole system and in great detail, explaining the whole system to me as I was curious how it worked. Turns out the new air filters are too dense for the high efficiency furnace and we're building up pressure far faster than the older filers use use to use. I know know how to read all the pressure readings off they systems to know when is best to replace the filters in the future.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$89

MANUEL G.
02/2015
5.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: Heat pump replacement - Excellent as negotiated. Thanks to Taner and his installation crew.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$9,000

Yamna S.
01/2015
5.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: GAC replaced our heat exchanges today. They were very professional, courteous, and knowledgeable. We have a contract with GAC for our heating and air-conditioning maintenance and are very happy with their services.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
4.0

Yes, I recommend this pro
$2,331

Wanda H.
01/2015
5.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: .

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Patricia W.
12/2014
5.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: They installed a new gas furnace and A/C unit. They were all very professional, respectful and prompt, and the price was very reasonable. I would definitely recommend them

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$5,400

Ron and Linda R.
12/2014
5.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: They installed a Furnace and Air Conditioner in our bi-level home. From start to finish this company was EXCELLENT!! From the first visit to evaluate our old system, to the final install day, everything was 100% professionally correct, neat, and really perfect! Once we decided on this company and accepted their bid, it took less than one week for completion! The majority of the new duct-work was prefabricated and correct, thus helping to make the install time very short. The installed systems (heat & cool) have operated correctly for over 3 months without a hitch!

Rating CategoryRating 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

Aloke R.
12/2014
5.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: Replaced hvac

Rating CategoryRating 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

David S.
08/2014
5.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: GAC replaced our entire HVAC system, and did a great job. They were very professional, knowledgeable and easy to work with. After our system was installed, they returned a few times at minimal or no cost to balance the airflow on each floor, replace old, leaky duct work, and to sleuth out a leak in our duct work. We recommend them highly!

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$10,500

Yumiko I.
07/2014
5.0
heating & air conditioning/hvac
  + -1 more
Great job! Price was good.
Description of Work: Purchased and installed new AC

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$6,000

darcy M.
07/2014
5.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: Yearly contract. They service Ac and heating unit x2 per year.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$179

Terese B.
06/2014
5.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: Replace our HVAC system. Great. They sent a whole team of people to get the job done as quickly and without much distribution as possible.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$8,000

Sudha P.
06/2014
4.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: Summet Service

Rating CategoryRating out of 5
quality
4.0
value
2.0
professionalism
5.0
responsiveness
4.0
punctuality
5.0

Yes, I recommend this pro

Cynthia H.
06/2014
2.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: We hired them to put a Humidifier in our home to replace our old one. The first one had ZERO effect according to 2 very efficient Humidifier Readers that we had. So they installed a second one where they took the original one out and where they should have installed the first Humidifier originally. This one had a slight effect and they gave us a few hundred off the price, but we never should have needed the second one according to them!! But $1,000 for 2 Humidifiers is sill a waste of money for a 3% to 4% increase in Humidity! | |Lastly, the Manager sent us a nonsense/very rude letter stating that the workers didn't want to ever come to our home or speak to us ever again. The strange thing was that we never spoke to them except to let them in our home, show them the area where the Humidifier went and ask about maintenance of the unit. So this was actually just the company trying to get rid of us! | |We will NEVER do business with them again and their humidifiers are a total waste of time and money!!

Rating CategoryRating out of 5
quality
2.0
value
2.0
professionalism
3.0
responsiveness
3.0
punctuality
4.0

$1,000

Robert B.
06/2014
5.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: I received a very competitive quote on a new heating and A/C system. I was very pleased with Fritz (who gave me the quote), as well as the installation team. I would definitely recommend this company.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Amy A.
06/2014
5.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: Did an inspection on the AC unit. Quoted a new contract service for the year. The first quote included a contract service for the AC and heat pump. We don't have a heat pump but oil furnace. I also requested that the tech knock on the door when coming in and out of the house. The service was excellent and I will certainly use them again.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
4.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$100

Octavia D.
05/2014
5.0
heating & air conditioning/hvac
  + -1 more
Prompt service and friendly staff.
Description of Work: Semi-annual servicing: recommended a manufactured filter instead of the store bought one (2 year service life), checked wire connections, motor, outdoor coils, etc. Recommended the use of Refrigerant Cap Locks to address my concern about people tampering with the unit.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$179

Patricia W.
12/2013
5.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: They did a routine tune-up on my furnace

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$80

Richard W.
09/2013
5.0
heating & air conditioning/hvac
  + -1 more
Well
Description of Work: Installed replacement whole-house AC and furnace

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$9,025

Renee H.
08/2013
5.0
heating & air conditioning/hvac
  + -1 more
Every visit is wonderful with them
Description of Work: Service checkup for heating and cooling

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

kathy P.
08/2013
5.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: I have a contract with them. They do excellent work.
Rating CategoryRating out of 5
Yes, I recommend this pro

Denise J.
07/2013
5.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: Excellent service starting with Terry. He came quickly when my air was not working, gave me a loaner unit and scheduled the replacement unit installation right away. Excellent price and perfect unit for my needs. The installation team came out a week later and installed the unit. They were on time as scheduled and very professional. They did a great job. I highly recommend GAC.
Rating CategoryRating out of 5
Yes, I recommend this pro

Andrea V.
06/2013
5.0
heating & air conditioning/hvac
  + -1 more
Excellent service and price
Description of Work: New heating and air conditioning system

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$6,000

Contact information

227 E Deer Park Dr, Gaithersburg, MD 20877

http://www.GACServices.com

Service hours

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

Licensing

Insured

No License Required for Trade

Eco-friendly Accreditations

LEED Accredited Professional
No
Energy Star Partner
No
EPA Lead-Safe Certified
No
Use Green Products or Work Practices
Yes
State Contractor License Requirements

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
Yes, GAC Services offers free project estimates.
Yes, GAC Services offers eco-friendly accreditations.
No, GAC Services does not offer a senior discount.
No, GAC Services does not offer emergency services.
Yes, GAC Services offers warranties.
GAC Services offers the following services: HVAC, Duct Sealing, Cooling, Heating, Electric, Generators
Duct Cleaning

Contact information

227 E Deer Park Dr, Gaithersburg, MD 20877

http://www.GACServices.com

Service hours

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