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Best heating and air conditioning pros near Waldorf, MD

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TRUSTED BY WALDORF, MD HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon515
    Verified heating and air conditioning services reviews

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

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

Serving Waldorf, 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.
127 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 - InstallGas Furnace / Forced Air Heating System - Install+22 more

Serving Waldorf, 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."
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6 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for BlueStar Air Mechanical Inc.
BlueStar Air Mechanical Inc.
4.9(
32
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+47 more

Serving Waldorf, MD and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Danny treated me like an old friend with helpful and timely service. It was refreshing. He inspected the unit, found a failed capacitor caused by an add-on Michael and Sons installed last inspection. Danny replaced the failed part, removed the add-on, and I was back in business in less than 30 minutes. I have a new HVAC provider!"
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+13

Response time3 hrs
Response rate100%
6 neighbors recently requested a quote
Avatar for The Best Air Quality and Restoration
The Best Air Quality and Restoration
4.8(
236
)
Air Ducts & Vents - Clean

Serving Waldorf, 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 DMV Air Duct & Dryer Vent Cleaning
DMV Air Duct & Dryer Vent Cleaning
5.0(
125
)
Air Ducts & Vents - Clean

Serving Waldorf, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Small jobs welcome

"I hired DMV Air Duct & Dryer Vent Cleaning to clean my dryer vent. Great communication, great work/ service, reasonable price, and an honest business owner. Highly recommend Victor and DMV Air Duct & Dryer Vent Cleaning!"
Response time3 hrs
Response rate95%
58 neighbors recently requested a quote
J A W & Sons
4.7(
31
)
Thermostat - Repair or Reprogram

Serving Waldorf, MD and surrounding areas

Approved

In business since 2018

Free estimates

Customers say: Quality work

At J A W & Sons, we take great pride our experience, expertise, quality and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

Response time1 day
1 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for PMD Heating & Cooling LLC
PMD Heating & Cooling LLC
5.0(
15
)
Central A/C - Service or RepairThermostat - Repair or ReprogramDuctless Mini-split Heating System - Install or Replace+6 more

Serving Waldorf, MD and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

We take great pride in our reputation of experience, expertise, quality, and customer service to meet our consumers' needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of your project. We take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job from start to finish. We look forward to working on your next project.

Response time3 hrs
Response rate92%
12 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

If you know how to identify supply and return ducts, you’ll find that only the supply ducts will have dampers. Although your return ducts can have dampers, it’s not common. If you have one return duct that is pulling in too much air, adding a damper to it can help with overall system performance. However, dampers on return ducts are not a necessary addition for most homes.

A dirty air conditioning coil can cause your unit to work overtime, leading to reduced efficiency, higher energy use, more wear and tear, and possible ice buildup. If the coils corrode, refrigerant can leak, causing damage, possible mold growth, and an expensive repair bill. By cleaning your AC coils once a year, you’ll have a more efficient unit that’s likely to last longer.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

Your heating and cooling systems cost you the most on your electric bill and make up 50% of your bill on average. Your washing machine, dryer, oven, and stove contribute significantly to your electric bill as well. Lights, fans, and smaller electronics add up, but aren’t the biggest energy consumers. You can reduce your power usage by setting optimal temperatures on your thermostat and investing in energy-efficient appliances.

When a compressor gets overheated in central air systems or heat pumps, it can still cool your home for a while until it eventually gives out. If the compressor is chronically overheated and no one addresses the root cause, it will create an incredibly expensive problem when your entire HVAC system breaks down and stops working altogether.

The Waldorf, 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.