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Find Central a/c service or repairers in Annapolis Junction

Avatar for 3MMECHANICAL
3MMECHANICAL
4.9(
31
)
Central A/C - Service or Repair

Serving Annapolis Junction, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Emergency services offered

Warranties offered

"Michael showed up to the job on time. He was extremely professional, and thorough. He quickly found the issue, repaired it and gave recommendations for regular maintenance. I highly recommend 3M Mechanical."
SERVICE CALLS
SERVICE CALLS
SERVICE CALLS
SERVICE CALLS
SERVICE CALLS

+8

Response time3 hrs
Response rate89%
1 neighbors recently requested a quote
Avatar for Graham Solution LLC
Graham Solution LLC
5.0(
14
)
Central A/C - Service or Repair

Serving Annapolis Junction, MD and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"I had a great experience with Graham Solution. He repaired my AC unit quickly and professionally. He was punctual, knowledgeable, and took the time to explain what the issue was before fixing it. The repair was done efficiently, and my AC is working perfectly again. His pricing was fair, and the quality of his work exceeded my expectations. I highly recommend him to anyone looking for honest, reliable, and skilled HVAC or handyman service. Thank you for the excellent job!"
HVAC
HVAC
HVAC
HVAC
HVAC

+5

1 neighbors recently requested a quote
Avatar for Edwin's Air Conditioning & Heating, LLC
Edwin's Air Conditioning & Heating, LLC
4.9(
28
)
Central A/C - Service or Repair

Serving Annapolis Junction, MD and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Edwin was FANTASTIC!!! I found him on the HomeAdvisor app after my home warranty company failed to respond to my work order for a broken A/C unit after 3 days. I called him and he was able to provide a same-day appointment within a few hours! When he arrived, he was very knowledgeable, professional, punctual, efficient, and came prepared with all the right tools. I was very impressed with his service and look forward to him servicing my HVAC unit in a few weeks for general maintenance/preventative service. It has been so hot lately that we needed urgent service and Edwin saved the day! I would highly recommend him to others. Thanks so much again, Edwin!!!"
Response time2 hrs
Response rate90%
Recommended by96%of homeowners
Avatar for JDL HVAC & Plumbing Services
JDL HVAC & Plumbing Services
4.5(
950
)
Central A/C - Service or Repair

Serving Annapolis Junction, 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 time5 hrs
258 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Carroll Mechanical, Inc.
Carroll Mechanical, Inc.
5.0(
20
)
Central A/C - Service or Repair

Serving Annapolis Junction, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"My air conditioning stopped working last night. I called Carroll mech . They responded immediately and sent technician to the house few hours later. Jordan Scott was very professional. He checked the system carefully and fix the issue soon. Really appreciate the service!"
Trane Heat Pump
Carrier AC + Furnace
Response time5 hrs
116 neighbors recently requested a quote
Recommended by22%of homeowners
Avatar for No-Frost Air Conditioning & Heating, LLC
No-Frost Air Conditioning & Heating, LLC
4.7(
411
)
Central A/C - Service or Repair

Serving Annapolis Junction, 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%
16 neighbors recently requested a quote
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Showing 1-10 of 187
FAQs for central a/c service or repair projects in Annapolis Junction, 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 Annapolis Junction, 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.