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TRUSTED BY LEONARDTOWN, MD HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon76
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Leonardtown - Updated Nov 2026

Avatar for McCrea Heating & Air Conditioning Services of MD
McCrea Heating & Air Conditioning Services of MD
4.5(
318
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+22 more

Serving Leonardtown, 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 The Best Air Quality and Restoration
The Best Air Quality and Restoration
4.8(
236
)
Air Ducts & Vents - Clean

Serving Leonardtown, MD and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Great! He provided additional information, suggesting I install a UV Light Air Purifier to my HVAC system. Which would help eliminate the possibility of mold growing in my vents."
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+50

Response time10 hrs
1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Mack's Home Services, LLC
Mack's Home Services, LLC
4.7(
603
)
Air Ducts & Vents - Clean

Serving Leonardtown, MD and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"My experience with Mack’s Home Services, LLC was excellent. The people are very professional and did a tremendous job. They were courteous, explained their services and pricing clearly, and things went exactly as they communicated. They were very respectful and operated very carefully throughout our home. I will use them whenever I need our HVAC systems cleaned in the future and strongly recommend them. You will not be disappointed."
Response time3 hrs
1 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for HPC Services
HPC Services
5.0(
13
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Leonardtown, MD and surrounding areas

Approved

In business since 2024

Emergency services offered

Warranties offered

"I would highly recommend HPC Services! They responded quickly when we called for an estimate on a new heat pump. The gentlemen who were in our home installing the unit were professional and polite and very nice to our little dogs. Sergio stayed and answered all of our questions until late in the evening. They offered us a free duct cleaning and that was completed on Monday after the Friday install. Emmett worked quickly and professionally. He was so very nice and easy to talk to. I was most impressed with the fact that they offer a Veterans discount. If are looking for an amazing company for any HVAC work, I urge you to give them a call!! Karen Hamner"
HVAC
Plumbing
HPC Services HVAC and Plu
HPC Services HVAC and Plu
HPC Services HVAC and Plu

+5

Response time5 hrs
Recommended by91%of homeowners
F.H. Furr Plumbing Heating & Air Conditioning Inc
4.0(
25
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+47 more

Serving Leonardtown, MD and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Emergency services offered

"It was pricy, but it was good service. Well, that's hard to say because it's all expensive, as oppose to any other air conditioning company, it's about the same, just too much money in general."
15 neighbors recently requested a quote
Recommended by54%of homeowners
Avatar for DR GRAL HVAC & CONSTRUCTION
DR GRAL HVAC & CONSTRUCTION
5.0(
1
)
Air Ducts & Vents - Clean

Serving Leonardtown, MD and surrounding areas

Approved

In business since 2015

Credit card accepted

Offers commercial services

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We have many years of experience to give you confidence that we are your number one choice for your next home project. You will find us to be competitively priced with close attention to the details. We look forward to building a lasting relationship and guarantee your satisfaction!

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9 neighbors recently requested a quote
Clean Cleaning DMV
5.0(
1
)
Air Ducts & Vents - Clean

Serving Leonardtown, MD and surrounding areas

Approved

Customers say: Quick response

Hello! My name is Fabiola sosa , and we are a professional house cleaning team with over 7 years of experience serving the DMV area (D.C., Maryland, and Virginia).\n\nWe take pride in helping people keep their homes clean, comfortable, and stress-free. Our goal is to make your life easier by taking care of your house with attention to detail and care.\n\nWe are known for being punctual, reliable, and highly organized. Every home we clean is treated with respect, as if it were our own.\n\nOur services include:\n • General house cleaning\n • Deep cleaning\n • Kitchen and bathroom cleaning\n • Dusting and vacuuming\n • Move-in / move-out cleaning\n\nCustomer satisfaction is our top priority. We listen to your needs and make sure every space is left spotless.\n\nThank you for trusting us with your home!\n

Recommended by100%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

Yes, ventless portable air conditioners exist, and not all standard portable air conditioners must be vented through a window.

Ventless portable units, often called evaporative coolers, do not have exhaust hoses. They use a water reservoir and a cooling pad to add moisture to the air, making it feel cooler. These units work best in dry climates because humid areas cannot absorb much additional moisture.

For standard portable air conditioners that do require venting, a window is not the only option; they can also be vented through a door, wall, or ceiling. However, it is essential to vent these units properly. Running a standard portable AC without venting it is counterproductive because it needs to expel heat to cool the room. Failing to do so will only increase the room's temperature.

The length of an AC cycle depends on the settings in your thermostat and the unit you have. Central AC doesn't constantly run at full blast the way that a window unit does. A cooling cycle in most homes is 15 to 20 minutes. Then, the unit stays off for seven to 10 minutes to circulate the cold air in the house before the cycle repeats. It should repeat two or three times per hour. A short cycle lasts less than 10 minutes and then turns off.

You can buy R-22 refrigerant for your home air-conditioning system through your local AC repair specialist, who can also refill your R-22 system as needed. You may find that the cost of R-22 has gone up due to shortages as the EPA banned this refrigerant. Ask your pro to inspect your system for any leaks or issues.

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.

Vents may blow air even though the air conditioning system is off because of the pressure difference between indoor and outdoor air or drafts from leaky ducts. Check for leaks or drafts in the ductwork or around windows and doors.

The Leonardtown, MD homeowners’ guide to heating and air conditioning services

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