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Best heating and air conditioning pros near Marlow Heights, MD

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TRUSTED BY MARLOW HEIGHTS, MD HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon219
    Verified heating and air conditioning services reviews

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

Avatar for HVAC Superior Solutions Inc
HVAC Superior Solutions Inc
5.0(
6
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+47 more

Serving Marlow Heights, MD and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"I HIGHLY RECOMMEND HVAC Superior Solutions Inc!! They came over to diagnose my AC problem on very short notice. I decided to get a whole new system and they took great care in all the details and worked overtime to get the job completed. I am very satisfied with the new system and with the great customer service."
7 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for McCarthy Services
McCarthy Services
4.2(
370
)
Central A/C - InstallCentral A/C - Service or RepairGas Furnace / Forced Air Heating System - Install+6 more

Serving Marlow Heights, MD and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Credit card accepted

"Cozy Heating And Cooling is a local HVAC service contractor located right here in Woodbridge, VA. Since 2018, Cozy Heating And Cooling has provided dependable service and quality repair work in metro areas of DC, MD and VA. We specialize in satisfying all heating and air conditioning needs to ensure maximum comfort with the highest performance standards from employee training to customer care. All of our technicians are fully certified and trained to install and repair the latest HVAC equipment and technology."
Installing a new A/C system.
74 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Petro Home Services
Petro Home Services
4.4(
1,786
)
Central A/C - InstallOil Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+47 more

Serving Marlow Heights, MD and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

With over 100 years experience, we know how to keep you comfortable, safe and help you save on energy costs. Our local 24/7 customer service and support means automatic heating oil deliveries and our service response is always fast. We never run out of heating oil plus our pricing and payment plans are designed to help you manage your costs all year round. Experience the Petro difference today!

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Response time6 days
Response rate100%
18 neighbors recently requested a quote
Avatar for Regal Duct Cleaning
Regal Duct Cleaning
4.9(
69
)
Air Ducts & Vents - Clean

Serving Marlow Heights, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Credit card accepted

"Julius has been really helpful and knowledgeable about how HVAC works. He cleaned the system really good and I have no problems at all. Was very professional and thorough with the job; made sure we were well informed of what we having performed and offered services without pressure. Really happy we went with this company. Highly recommend!"
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+12

Response time8 hrs
Recommended by92%of homeowners
Avatar for The Best Air Quality and Restoration
The Best Air Quality and Restoration
4.8(
236
)
Air Ducts & Vents - Clean

Serving Marlow Heights, 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
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Heating and Air Conditioning FAQs, answered by experts

Running a window air conditioner unit costs about $0.06 to $0.88 per hour. Choosing the correct size air conditioner can help it run more efficiently.

To diagnose a bad HVAC or AC damper, assess the airflow from your vents. For a manual damper, close it, run your system, and check for airflow. If air is still coming through the vents, the damper is likely faulty and needs repair or replacement. For an automatic damper, turn on your HVAC system and monitor the airflow and room temperature. Signs of a problem include low airflow, a room that won't maintain its set temperature, or a drafty feeling. If you suspect a faulty automatic damper, you may need to hire a professional for repairs.

If refrigerant levels are low, it can cause the evaporator coil to freeze up. Low freon causes a drop in pressure, which will make the coil too cold and cause moisture to freeze on the coil. Your system may be low on refrigerant because of a leak. 

Make sure to have maintenance performed twice a year, and contact your local HVAC technician if you suspect your system has low freon levels.

A frosty expansion valve that isn't blowing out cool air is a sure sign that it’s time to replace it. It might also be time to replace the TXV valve if your AC unit switches off soon after turning on or if you have poor airflow in your home.

AC evaporator coils should be cleaned at least once per year to keep your unit in good condition. For optimal performance, consider cleaning them twice a year—once before and once after the main cooling season. More frequent cleanings may be necessary for older systems, units with performance issues, or those in climates with high levels of humidity, dust, and dirt.

The Marlow Heights, 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.