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Find Central a/c service or repairers in Germantown

Avatar for Magna Tech Temp Air, LLC
Magna Tech Temp Air, LLC
4.8(
166
)

Serving Germantown, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"The best customer service I ve experienced. Immediate telephone response (during a 3-day weekend) and Albert arrived within an hour, diagnosed the problem quickly, made the repair and thanked me for my business. Cost is fair and service is outstanding. Definitely my new HVAC guy, period. Highly recommend you call Magna Tech (Albert) for any HVAC issues."
New !6 Seer 3 Ton Air condition
B-Vent
New 80% Gas Furnace Instal
Ashburn Upgrade
Ashburn upgrade

+4

Response time3 hrs
9 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Presidential Heating & Air Conditioning
Presidential Heating & Air Conditioning
4.6(
454
)

Serving Germantown, MD and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1982

Free estimates

Emergency services offered

"The work was performed professionally and promptly. We have had no problems with the unit since its installation, and we continue to use Presidential for our maintenance service, and are very satisfied."
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+6

25 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Simply Home Service, LLC
Simply Home Service, LLC
5.0(
30
)

Serving Germantown, MD and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Sean was great during his visit to fix our furnace. He met us right away on a weekend, knew exactly what was wrong and repaired it for a very reasonable price. He was so good we asked him on the spot to do our twice a year furnace/AC checkups. Can’t recommend him highly enough."
Response time3 hrs
Response rate97%
Recommended by93%of homeowners
Avatar for GAC Services
GAC Services
4.8(
292
)

Serving Germantown, MD and surrounding areas

Approved (Corporate)

In business since 1970

Free estimates

Warranties offered

"Could not have asked for better service. The recommended product is working great, the installers were professional and so far the service technicians are top notch."
Additional Photos
61 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Hecomo
Hecomo
5.0(
11
)

Serving Germantown, MD and surrounding areas

Approved

Credit card accepted

Customers say: True professional

"Outstanding service. Edmond was very honest and completed the job flawlessly. I picked Hocomo to replace the whole unit with a new one."
Heating & A/C Project
Heating & A/C Project
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+8

Response time7 hrs
10 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for BlueStar Air Mechanical Inc.
BlueStar Air Mechanical Inc.
4.9(
32
)

Serving Germantown, MD and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"I contacted Bluestar Air Mechanical for a second opinion after an appointment with Air One. I have a Carrier HVAC system, and the Air One technician recommended a complete system replacement, claiming the blower was bad, the furnace control board needed replacing, and that there were other issues. Since replacing the HVAC is a big investment, I wanted to get a second opinion. It was only after comparing the service from Bluestar that I realized Air One may have been pushing for a new system sale or lacked the expertise to properly diagnose and repair the actual problems. Isaac, the technician from Bluestar, spent about an hour thoroughly diagnosing and fixing the issues. He found burnt wiring in the furnace and discovered that the wrong capacitor had been incorrectly installed in the AC. Isaac replaced the burnt wiring in the furnace and the capacitor in the AC. After these repairs, my Carrier system was back up and running—without the need for a costly replacement. Bluestar, and Isaac in particular, demonstrated professionalism, expertise, and honesty. They focused on resolving the actual issues instead of pushing for an unnecessary system replacement. I highly recommend Bluestar for their reliable service and Isaac’s thorough and knowledgeable work."
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+13

Response time6 hrs
2 neighbors recently requested a quote
Recommended by79%of homeowners
Avatar for Edwin's Air Conditioning & Heating, LLC
Edwin's Air Conditioning & Heating, LLC
4.9(
28
)

Serving Germantown, MD and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"I found Edwin on HomeAvisor/Angie's List. We were having some heat issues and wanted to have some basic maintenance. Edwin 'had extensive knowledge about each of our systems, and was able to troubleshoot and provide us with various courses of action. The attic heat pump was replaced and he was very fair with his prices. They did an excellent job, and sympathizes with his customers. He replaced the system on a Saturday."
Response time2 hrs
Response rate90%
Recommended by96%of homeowners
Avatar for McCarthy Services
McCarthy Services
4.2(
370
)

Serving Germantown, MD and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Credit card accepted

"The McCarthy Team was very professional, polite, Clean and Explained in Detail the Installation of what they were doing, pleased with the service, Thank u Team!"
Installing a new A/C system.
651 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for JDL HVAC & Plumbing Services
JDL HVAC & Plumbing Services
4.5(
949
)

Serving Germantown, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"JDL called within 30 min of placing my request and set up a visit. They evaluated my AC unit and agreed to repair, despite its age (more than 20 years old!). The cost was a fraction of a new unit. Their lead service tech, Isak, was great - knowledgeable, efficient and responsive to my questions. I was very impressed and will have them return for maintenance and service in the future."
NEW INSTALL
CLEANING COILS
CLEANING COILS
 CLEANING COILS
 CLEANING COILS

+118

Response time4 hrs
50 neighbors recently requested a quote
Recommended by91%of homeowners
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Showing 1-10 of 257
FAQs for central a/c service or repair projects in Germantown, MD

Coils work to absorb heat into the refrigerant that flows through them, moving heat from one location to another. For air conditioning, the evaporator coil inside the air handler in your home absorbs heat. It then transfers the heat outside to the condenser coil, where it releases it. The opposite process happens for heat pumps. When the coils get dusty and dirty, it reduces how well these components work.

Skip regular cleanings, and dirt, debris, and mineral deposits will blanket your evaporator and condenser coils. When that happens, the coils can’t shed heat efficiently, so the system works harder and your energy bill climbs. Over time, overheating strains the compressor and can trigger a full breakdown—an avoidable repair that often costs far more than a simple annual cleaning.

AC coil cleaning is an investment that pays for itself in the benefits it provides. Dust‑caked coils force your AC to run longer, so you spend more on electricity and rack up extra wear. A quick professional cleaning restores efficiency, trims monthly bills, and eases strain on expensive parts. Over the long haul, that small yearly fee delays pricy repairs and stretches the unit’s lifespan, making coil cleaning one of the smartest HVAC tune‑ups you can schedule.

Watch for higher electric bills, rooms that stay warm no matter how low you set the thermostat, or an AC system that runs nonstop. Extra humidity and frost on the coils are also red flags. Catching these clues early lets you schedule a quick cleaning before the system overworks itself and triggers an expensive breakdown.

Your AC cleaning technician starts by shutting off the power to the unit and removing the faceplate. Compressed air and a vacuum hose blast away loose debris, followed by a coil-safe, no-rinse cleaner that dissolves stubborn grime. After the solution has soaked in, the professional wipes the fins, reassembles the housing, and restores power, leaving the system ready to cool at peak efficiency.

The Germantown, MD homeowners’ guide to central a/c service or repairs

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