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Avatar for Presidential Heating & Air Conditioning
Presidential Heating & Air Conditioning
4.6(
455
)

Serving Dickerson, MD and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1982

Free estimates

Emergency services offered

"Project went very well. My old air conditioner broke down in the middle of summer and the guys at Presidential made every effort to get my new unit installed quickly. They were very professional and I'm very happy with the workmanship. Great experience overall."
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+6

24 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Holtzople Heating, Air Conditioning, & Electrical Services
Holtzople Heating, Air Conditioning, & Electrical Services
4.9(
210
)

Serving Dickerson, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Emergency services offered

"Holtzople installed our new ac/heating unit in 2021. The company and service has been fabulous from the beginning. Today we had our comfort care service of our main unit and split units. The service technician, Tim was punctual, professional and a diligent worker. He took care of both units, installed an air scrubber and leveled our outside unit. Great service technician and very knowledgeable. We continue to be very pleased with the service Holtzople provides for their products."
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+47

Response time1 day
Response rate100%
12 neighbors recently requested a quote
Avatar for GAC Services
GAC Services
4.8(
293
)

Serving Dickerson, MD and surrounding areas

Approved (Corporate)

In business since 1970

Free estimates

Warranties offered

"GAC services was able to come out for a same day trouble shooting appointment. Jim S arrived on time and was very courteous and professional. He was able to quickly identify the problem with the registers and dampers and able to get warm air flowing to the otherwise very cold areas of the house. In addition, Jim was able to recommend some additional services that would help me achieve the desired evenness of temperature such as an additional return and humidifier for the home. Great experienced master certified technician!"
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20 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Simply Home Service, LLC
Simply Home Service, LLC
5.0(
30
)

Serving Dickerson, MD and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"It was a pleasure hiring Sean. He was able to install our new thermostat which involved updating the wiring and removal of a module. Another company was unable to perform these tasks to get the HVAC running but Sean quickly resolved the issue. He was very friendly, knowledgeable, and punctual. Don't miss out on hiring Simply Home services, you won't regret it."
Response time3 hrs
Response rate97%
Recommended by93%of homeowners
Avatar for McCarthy Services
McCarthy Services
4.2(
370
)

Serving Dickerson, MD and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Credit card accepted

"They really helped out in a serious bind! Great customer service and install. You wouldn’t even know they had been in our home to install a new furnace and air conditioning units. Highly recommend!"
Installing a new A/C system.
490 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Hecomo
Hecomo
5.0(
11
)

Serving Dickerson, MD and surrounding areas

Approved

Credit card accepted

Customers say: True professional

"I had the best experience with Hecomo Heating & Cooling. My house's AC/heating system stopped working all of the sudden and the temperatures at the time were 90 degrees and up. I was desperate looking into many different companies. Many of them, came over to my house and did estimates at ridiculously high prices. Luckily, I found Hecomo. They came to my house, did an estimate and were ready to install my AC/heating unit very quickly and at a good price. Also, the customer service was great. They were there for me throughout the whole process. They explained to me everything that I needed to know about the system and the features. Everything is very modern and updated. I am very happy I found Hecomo."
Heating & A/C Project
Heating & A/C Project
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+8

Response time8 hrs
Response rate100%
10 neighbors recently requested a quote
Avatar for Regal Duct Cleaning
Regal Duct Cleaning
4.9(
68
)

Serving Dickerson, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Credit card accepted

"Julius did an excellent job with the air duct &dryer vent cleaning. He explained the process & gave tips on how maintain the best air quality for my home. Easy to schedule the appointment. Highly recommend & will use them again!"
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+12

Response time8 hrs
1 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for The Best Air Quality and Restoration
The Best Air Quality and Restoration
4.8(
236
)

Serving Dickerson, MD and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"I hired Best Air Quality and Restoration to clean my dryer vent. I was very pleased with their level of professionalism. All my questions were answered without hesitation. The price was fair and affordable. Dennis, the technician notified me of his expected arrival time. He was very nice and pleasant. Dennis explained what the job entailed and completed the job within an hour. There was no excess lint or debris in my home to clean. I would recommend Best Air Quality and Restoration to others to experience for themselves. I intend to use other Best Air Quality and Restoration services again in the near future."
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+50

Response time10 hrs
Recommended by93%of homeowners
Avatar for Weather Masters Corporation
Weather Masters Corporation
4.7(
124
)

Serving Dickerson, MD and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"The replacement of air conditioning system was done smoothly. The salesperson - Adam - explained me all pros and cons of various options, and we agreed on the option which is cost efficient and took into account all my preferences. The installers - Shane and Shon - are nice guys, worked efficiently and have done the job in half a day. They even fixed some part of my heating system free of charge. Overall, very positive impression, highly recommend."
Response time2 days
47 neighbors recently requested a quote
Recommended by99%of homeowners
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Air Conditioning questions, answered by experts

Ideally, an AC system should never need more Freon (a popular refrigerant) because it circulates in a closed loop. However, refrigerant leaks are not uncommon and may occur gradually over 5 to 15 years. If your system has a leak, it will need to be topped up in a process known as an AC recharge. Signs of a refrigerant leak include weakened AC performance, increased humidity in your home, higher utility bills, and a hissing sound from the unit. The cost of an AC recharge will depend on the size and type of your AC unit, as well as the type of refrigerant it uses.

Yes, HVAC zoning is generally considered worth the investment by both experts and homeowners. Zoned systems offer significant benefits in convenience, efficiency, and comfort by allowing you to set different temperatures for various rooms or 'zones' in your house. This ability to heat and cool only the spaces you're using leads to energy savings and lower utility bills. Zoned systems are especially effective in multi-level homes that experience temperature fluctuations, but even smaller homes can benefit from the ability to adjust temperatures more quickly. While the up-front installation cost can be high, many find it's a worthwhile long-term investment, particularly for those who plan to stay in their home for a while.

There are many signs of a bad AC fan motor, including if the fan blades don’t spin when the AC kicks on or if they keep spinning when the AC is off. The AC fan cools down the condenser coil, so a faulty motor can also cause the system to overheat. Unusual noises in the exterior AC unit, including grinding or rattling sounds, may also be a sign that the AC fan motor is worn out.

While all portable AC units will collect moisture as part of their cooling and dehumidifying process, whether and how often you need to drain them depends on what kind of unit you have and the natural humidity levels where you live. For example, if you live in a very dry area and have a self-evaporating unit, you may not need to drain your portable AC very often at all. Some units may automatically drain collected moisture out the window through their exhaust vent.

No, it's not advisable to only replace the outside AC unit connected to your system. AC units are designed to work as a cohesive system, and older units work differently than newer units. Therefore, replacing only one component can lead to incompatibilities that affect the system’s performance. Replacing one component can void your warranty, costing you money for repairs.

The Dickerson, MD homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.