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Top-Rated Air conditioning pros in Lochearn - Updated Nov 2026

Avatar for DUCTZ of the Upper Bay Region
DUCTZ of the Upper Bay Region
4.9(
121
)
Air Ducts & Vents - Clean

Serving Lochearn, MD and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Absolutely recommend DUCTZ to friends and family. They unclogged the dryer vent up to the roof and made sure to eliminated the cause of the fast clogging in my dryer vent. They didn't have to do that. Very happy with the price and the service so we will definitely use the service again."
Trunk line before cleanin
Trunk Line after cleaning
Evaporator Coil
Return inside stud wall
Supply Branch

+3

Response time8 hrs
Recommended by99%of homeowners
Avatar for No-Frost Air Conditioning & Heating, LLC
No-Frost Air Conditioning & Heating, LLC
4.7(
411
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+2 more

Serving Lochearn, MD and surrounding areas

Approved

In business since 1971

Free estimates

Warranties offered

"This is an excellent company. We have used them for year to service our heating and air conditioning units. It became necessary to think about replacing the units. We have two. Decided to replace both at the same time. They came out on a Monday and gave us an estimate and came out on Thursday and Friday to do the work. They totally cleaned up after themselves and made sure everything was working properly. Then they called a few days later to see that everything was working well. I highly recommend this company. All the technicians are polite and competent. The office staff is nice beyond belief. If you need any heating/AC work done, this is the company to do it."
Additional Photos
Additional Photos
Additional Photos
Response time9 hrs
Response rate100%
14 neighbors recently requested a quote
Avatar for Amazing Heating and Air Conditioning, Inc.
Amazing Heating and Air Conditioning, Inc.
4.5(
190
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Lochearn, MD and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Replaced old HVAC system. Very knowledgeable team that provide competitive and comprehensive solutions. Great customer service and were in and out in one day with quality workmanship. We couldn t be more pleased!"
Rolloff Residence
Rolloff Residence
Rolloff Residence
Rolloff Residence
Jamerson Residence

+5

Response time1 day
48 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for GLM Mechanical Services, Inc.
GLM Mechanical Services, Inc.
4.6(
66
)
Central A/C - Install

Serving Lochearn, MD and surrounding areas

Approved

In business since 1978

Free estimates

Credit card accepted

When looking for professional HVAC services, look no further than GLM Mechanical Services, Inc. \nWhat we offer is honest, open estimating, with strict attention to detail and on time delivery. All we ask is when calling PLEASE speak english. WE can't help you if we can't understand what you need to tell us. Unfortunately, we do not offer attic installations when outdoor temperatures are so hot that attic temperatures can reach 100 degrees or higher. We cannot ask our employees to work under those conditions. We can bring to the table a level of expertise not usually available to residential projects. We have several years experience providing prompt and reliable services building your dreams into reality. We will always meet and exceed all expectations. Proudly handling the Goodman and Airtemp brands of HVAC equipment. Give us a call, you will be glad you did. \n \nWe now accept Visa, Mastercard, & Discover.

Recommended by100%of homeowners
Avatar for Graham Solution LLC
Graham Solution LLC
5.0(
19
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Lochearn, MD and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"I had a great experience with this HVAC company! They were professional, arrived on time, and quickly diagnosed the issue with my air conditioning unit. They explained the repair clearly, completed the work efficiently, and had my AC running perfectly again. The technician was courteous, knowledgeable, and took the time to answer all of my questions. I really appreciated the honest service and fair pricing. I highly recommend them to anyone looking for reliable HVAC service!"
Full system replacement
Service / repair
Service / repair
Service / repair
Service / repair

+5

2 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 Lochearn, MD and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Best Air Quality and Restoration did a spectacular job! I can't say enough about the employees. They did an outstanding job! They were punctual,polite and followed social distancing protocols.They assessed the home and cleaned the air ducts quickly and efficiently. I am very pleased with their service and highly recommended this company. I purchased a new home and had them come clean the ducts to improve the homes environment. They showed me before and after pictures and I noticed a difference right away"
Additional Photos
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+50

Response time10 hrs
1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for AMERICAN HVAC SOLUTIONS LLC
AMERICAN HVAC SOLUTIONS LLC
5.0(
9
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Lochearn, MD and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"My air conditioning unit and furnace were nearly 20 years old and beyond repair. It was June and the temperature was rising fast. Yonas, with AHS provided the best estimate. In two days, AHS technicians were at my home, on time, and very professional. They respected my home (shoe covers, etc) and informed me of everything they would be doing and explaining why. The new AC unit and furnace were completely done in about 5 hours. They also discovered duct in my attic that had mold and replaced it while they were there. Lastly they installed a new eco friendly thermostat. They cleaned up after themselves and took me around to ensure I knew how everything worked. I was also given warranty paperwork and assured, follow up service, if/when needed. I had a wonderful summer knowing my AC unit was good to go. I highly recommend AHS!"
New system replacement
New system replacement
New system replacement
New system replacement
23 neighbors recently requested a quote
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Air Conditioning FAQs, answered by experts

You can protect your air conditioner in the winter by turning off the power at the thermostat and performing routine HVAC maintenance in the spring. Regular maintenance, cleaning, and repair of your AC unit helps protect it and extend its life span. If you have a window AC unit, remove it from the window and store it in a dry place during the winter. Window units cannot withstand freezing temperatures. Keeping them in your window also allows cold air to seep into your home.

Air conditioners and dehumidifiers are actually quite similar, though they perform different jobs. Dehumidifiers reduce moisture in the air, while air conditioners work to cool the home. A good central AC unit will naturally perform a certain level of dehumidification due to its design, but it will not be able to handle excessive levels of moisture.

While all portable AC units will collect moisture as part of their cooling and dehumidifying process, whether and how often you need to drain them depends on what kind of unit you have and the natural humidity levels where you live. For example, if you live in a very dry area and have a self-evaporating unit, you may not need to drain your portable AC very often at all. Some units may automatically drain collected moisture out the window through their exhaust vent.

Trick question: There is no difference between an AC and a furnace blower motor. Whether you have central air and heat or just one of these, the same blower motor carries hot and cold air throughout the ductwork in your home. Certain systems may have separate blower motors for the AC and furnace, but each serves the same function.

Yesh, heat pumps can easily cool homes when the weather reaches over 100 degrees Fahrenheit, just as powerful air conditioners can. The key is sizing the heat pump correctly for the size of your home and your climate. A local heat  pump professional can help you determine the right size and type for your home.

The Lochearn, MD homeowners’ guide to air conditioning services

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