Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Leonardtown, MD

Enter your zip and get matched with up to 5 pros

Need a pro for your heating and air conditioning service project in Leonardtown, MD?

Select your specific project to find the pro for you.

TRUSTED BY LEONARDTOWN, MD HOMEOWNERS

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

Find Heating and air conditioning pros in Leonardtown

Avatar for McCarthy Services
McCarthy Services
4.2(
370
)
Central A/C - InstallCentral A/C - Service or RepairHeat Pump - Install or Replace+6 more

Serving Leonardtown, MD and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Credit card accepted

"I had a great experience with McCarthy. They entertained the other offers I had for HVAC replacement, agreed to what felt like a very fair price and did a great job the next day doing the replacement. I'd highly recommend them to anyone for HVAC work."
Installing a new A/C system.
277 neighbors recently requested a quote
Recommended by91%of homeowners
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 - InstallCentral A/C - Service or Repair+22 more

Serving Leonardtown, MD and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"The technician was punctual, knowledgeable of a myriad of products and services related to my home HVAC system. He was cordial and answered all my questions accurately. Where needed, he provided guidance and advise. He's work was done in a timely manner and without any mess. The workmanship was excellent and everything works properly since installed."
Additional Photos
Additional Photos
Additional Photos
10 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Mack's Home Services, LLC
Mack's Home Services, LLC
4.7(
602
)
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
3.9(
24
)
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."
22 neighbors recently requested a quote
Recommended by57%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!

Photos
8 neighbors recently requested a quote
Avatar for Legacy Premier Cleaning
Legacy Premier Cleaning
5.0(
2
)
Air Ducts & Vents - Clean

Serving Leonardtown, MD and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

\nMy name is Jenn, and I founded Legacy Premier Cleaning with one simple goal: to provide exceptional cleaning services built on trust, reliability, and attention to detail. I believe a clean home or workplace isn’t just about appearances—it’s about creating a space where people can feel comfortable, healthy, and at peace.\n\nAs a locally owned and operated business, I take pride in treating every home and business as if it were my own. I understand that inviting someone into your space requires trust, which is why I am committed to professionalism, honesty, and consistently delivering quality results.\n\nWhether it’s a one-time deep clean, routine maintenance, move-in/move-out service, or commercial cleaning, I approach every job with care and a commitment to excellence. My mission is to exceed expectations, build lasting relationships with my clients, and leave every space looking its absolute best.

17 neighbors recently requested a quote
...
Showing 1-10 of 248
Heating and Air Conditioning questions, answered by experts

They can, but it’s not as common. Window AC units are much smaller than whole-house systems and less likely to develop refrigerant leaks or similar issues. As a result, you will rarely need to add a new refrigerant, limiting overcharging problems. However, it’s still important to leave refrigerant management in the hands of professionals when window units need work.

Yes, you should turn off your AC if it’s leaking. Turning off the system prevents more condensation from leaking and reduces strain on the unit if a damaged internal component or lack of refrigerant is the cause. While this may temporarily stop the leak, water can continue to drip from a thawing coil even after the system is off. As soon as you notice a leak, turn off the unit and investigate the source or call a professional for an inspection.

There are a few ways to determine if a vent is open or closed. You can inspect the vent and examine the position of the fins. If there are spaces between them, the vent is open. If the fins are flat and touching, the vent is closed. You can also stand under the vent when the system is running to see if you feel air flowing through it.

A calculation method that your HVAC contractor will use to ensure your system does what it's supposed to is measuring duct output, or its CFM. The calculation requires knowing the cross-sectional area of the ductwork and determining the air speed past any given point within it.

Capacitors are the most frequent part of an HVAC system to experience failure. These components are crucial for starting the motors that power the fans and compressor, but over time, they may become worn or fail due to electrical surges or regular wear and tear. When capacitors malfunction, HVAC systems may experience decreased heating or cooling efficiency, or even total system failure. Replacement or maintenance of capacitors is a common requirement for the optimal functioning of HVAC systems.

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.