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Top-Rated Air conditioning pros in Upper Marlboro - Updated Nov 2026

Avatar for Grove Heating and Cooling Inc
Grove Heating and Cooling Inc
4.7(
153
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+1 more

Serving Upper Marlboro, MD and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"I had them replace my entire HVAC system (furnance + AC). They did a great job through the whole process. Out of four quotes I received, they were the only ones that took the time to do a full heating and cooling load calculation for my house when they came to do an estimate in addition to making detailed measurements of our utility room to make sure anything they installed would fit. They gave me three proposals ranging from low-end, mid-range, and high end options and explained the equipment in each of them in detail, including documenting all the model numbers, efficiency ratings, and specs. What they recommended matched up with my research I did prior to receiving estimates. They were very responsive, knowledgeable, and professional so I gave them the job. The crew arrived on time, worked hard the whole day, were respectful of my house, and did not require supervision (although, they told me I was more than welcome to ask questions and watch anything they were doing). They cleaned up, explained the warranty and rebate options with all the paperwork already filled out so that all I had to do was sign--they even mailed both the warranty and rebate off for me. The whole process went great. While their prices were fair they were not the cheapest, but I have no doubt they did a great job, didn't cut corners, and will stand by their work if I experience any problems. They are a reasonably sized HVAC business and not a one-man-band shop like many places in the area, so I know they will likely still be around through the life of the warranty and are well staffed to respond to emergencies, including a 24/7 emergency service number. Overall, we're very happy with the new system and it's a huge improvement over what it replaced--both the AC and furnace are much quieter than the old units, more energy efficient, and perform better. It's been a month since the install and everything has been working fine without problems."
Response time5 hrs
Response rate100%
15 neighbors recently requested a quote
Avatar for BlueStar Air Mechanical Inc.
BlueStar Air Mechanical Inc.
4.9(
32
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Upper Marlboro, MD and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"I was lucky enough to have someone refer me to BlueStar Air Mechanical when my AC started acting up. The home warranty company confirmed that it was busted, but their mechanic was unreliable. After contacting a couple of other companies and having high quotes, I contacted Danny at BlueStar. The next morning (on a Saturday, nonetheless) I met Rhandel who quickly gave me a quote to replace my HVAC system (furnace and condenser). Rhandel was very nice and thoroughly explained my options. My home has two HVAC systems, so he also added a quote for the second system (which was on its last legs, too). The systems recommended were upgrades to what I had (increasing 1/2 ton on each system). To accommodate this, BlueStar included extra ductwork for me so that my house could accommodate. We met on a Saturday, agreed on a price on Monday, and everything was installed on a Thursday. They sent two crews and these guys worked hard for 12 hours straight to make sure both units were completed that day. I was very happy with their pricing and service. I have already recommended them to people I know in need of HVAC service. Pros: Pricing, options, promptness, service. Cons: 3% surcharge for credit cards"
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+13

Response time3 hrs
Response rate100%
6 neighbors recently requested a quote
Avatar for McCrea Heating & Air Conditioning Services of MD
McCrea Heating & Air Conditioning Services of MD
4.5(
318
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+2 more

Serving Upper Marlboro, MD and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"I couldn't be happier with the service I received from McCrea Heating and Air Conditioning Services of Maryland. Upon returning from vacation on a 100 degree July day, I found my old HVAC system basically dead (90 degrees in my kitchen!) ... Shane immediately came out to provide an estimate, we signed a contract on the spot, and he kindly provided some freon to hold me over until the new system could be installed. Brian and Nick showed up exactly on time to install the unit, used drop cloths to protect my flooring, and were exceedingly polite and professional throughout. I'd highly recommend this organization."
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6 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for MSR Heating and Cooling, LLC
MSR Heating and Cooling, LLC
4.8(
33
)
Central A/C - Service or Repair

Serving Upper Marlboro, MD and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Moises, the company owner, is incredible. I called 5 HVAC companies to get quotes for full system replacement, and MSR was not only the most responsive, but he came out the very next day. He gave me an incredibly competitive and fair quote for my project, and we immediately gave him our business. Unfortunately, our AC died before he could do the work, but he came out to our house at 6pm on a Friday to drop off a portable AC unit so we wouldn't sweat all night long. We thought we'd be stuck without central air for a few days, but Moises came and worked 9 hours on a Saturday to replace both our furnace and our AC unit. Afterwards, he even gave us a great price on a yearly HVAC maintenance plan. MSR is run by an honest, hard-working tradesman who understands what customers want and need. I won't hesitate to recommend him to friends or to anyone who needs HVAC work done."
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+8

Response time4 hrs
Response rate99%
2 neighbors recently requested a quote
Avatar for McCarthy Services
McCarthy Services
4.2(
370
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Upper Marlboro, 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.
98 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Petro Home Services
Petro Home Services
4.4(
1,600
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Upper Marlboro, MD and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"There was a snag at the beginning when they realized, after beginning to dig, that the AC unit was on top of the oil tank and they'd have to call someone in to move it before digging could continue. That delayed things a few days, but thereafter they did a good job of digging and were very careful with our trees. They also took care not to ruin the lawn with the machinery. The new tank and heater were quickly put in the basement with no problems."
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Response time6 days
Response rate100%
18 neighbors recently requested a quote
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Air Conditioning FAQs, answered by experts

Yes, a dirty evaporator coil can freeze up. Dirty evaporator coils can’t absorb or transfer heat properly. The dirt and grime restrict airflow, which is needed to move heat throughout the system properly. Your air conditioning unit could freeze over, or it can cause your heat pump to freeze.

It’s critical to use the right size AC for your space and not go too small or too big. If you purchase an undersized unit, it won’t properly cool your house, and it has to work harder to reach the optimal temperature. This will eventually wear your unit out. An oversized unit can spell trouble because it will turn off and on more frequently, which also wears out your AC unit. An oversized unit also causes humidity in the home.

You can air condition your Arizona room by extending your home’s existing HVAC system or adding a ductless mini-split system. Arizona rooms that have full windows rather than screens only are a better choice for air conditioning—screens will let the cold air out as fast as the air conditioner can make it. 

For the most part, you should leave your AC fan in “auto” mode so that it only runs during a heating or cooling cycle. Keeping it in this position uses less energy, which equals lower utility bills. However, there are some situations where it’s better to leave your AC fan on, including if you have allergies or there are lots of people in your home.

When your AC contactor goes bad, you might hear chattering or buzzing noises coming from your air conditioner. You may also notice that your AC is running but isn’t cooling your home. In some cases, your air conditioner might not even turn on at all. There could also be physical damage, discoloration, or corrosion around the contactor.

The Upper Marlboro, MD homeowners’ guide to air conditioning services

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