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Find Central a/c service or repairers in Jefferson

Avatar for McCrea Heating & Air Conditioning Services of PA
McCrea Heating & Air Conditioning Services of PA
4.7(
317
)
Central A/C - Service or Repair

Serving Jefferson, MD and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"Called McCrea Friday morning to schedule for a service technician to come out that afternoon. Got a call around noontime from service technician Dwayne Myers to let me know he was on the way and would be there shortly. When Dwayne arrived he introduced himself and we then discussed the problem, after which he went into diagnostic mode explaining along the way everything that he was doing in checking for the problem. Once diagnosed he explained what was needed for repair and again informed me what he was doing in facilitating the repair. After the repairs were completed he did a thorough inspection of my system to ensure there were no other issues and it was blowing cold and working like new."
Additional Photos
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5 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Blue Dot
Blue Dot
4.1(
352
)
Central A/C - Service or Repair

Serving Jefferson, MD and surrounding areas

Approved (Corporate)

In business since 1982

Free estimates

Emergency services offered

"The repairman was professional, courteous, efficient, and friendly. We called for emergency help as the heater failed to come on, on a cold Sunday. He arrived within an hour. He quickly identified and repaired the issue. I recommend their service to all."
System Installation
570 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for Tetteris HVAC
Tetteris HVAC
4.7(
192
)
Central A/C - Service or Repair

Serving Jefferson, MD and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"My experience with him was top notch. He was accommodating to my schedule. I work nights and he was willing to come to my home in the early evening instead of normal business hours. He assured me the fix of the leak would hold until the end of summer but there was a chance that I may need a new unit next summer since the unit is over 10 years old and the leak was pretty severe. I had no other trouble with the unit the rest of the summer. His price was reasonable and he was friendly and efficienct. If I need a new unit next summer I will definitely use Tetteris Heating and Air for the replacement."
Additional Photos
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Additional Photos
9 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for MSR Heating and Cooling, LLC
MSR Heating and Cooling, LLC
4.8(
33
)
Central A/C - Service or Repair

Serving Jefferson, MD and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Moises, the company owner, is incredible. I called 5 HVAC companies to get quotes for full system replacement, and MSR was not only the most responsive, but he came out the very next day. He gave me an incredibly competitive and fair quote for my project, and we immediately gave him our business. Unfortunately, our AC died before he could do the work, but he came out to our house at 6pm on a Friday to drop off a portable AC unit so we wouldn't sweat all night long. We thought we'd be stuck without central air for a few days, but Moises came and worked 9 hours on a Saturday to replace both our furnace and our AC unit. Afterwards, he even gave us a great price on a yearly HVAC maintenance plan. MSR is run by an honest, hard-working tradesman who understands what customers want and need. I won't hesitate to recommend him to friends or to anyone who needs HVAC work done."
Our Work
Our Work
Our Work
Our Work
Our Work

+8

Response time4 hrs
Response rate99%
1 neighbors recently requested a quote
Avatar for ARS of Maryland
ARS of Maryland
4.1(
177
)
Central A/C - Service or Repair

Serving Jefferson, MD and surrounding areas

Approved (Corporate)

In business since 1945

Free estimates

Emergency services offered

"Brandon Brock arrived at my home this evening. He is very relatable with a keen sense of professionalism for the services he provide. I now understand how to properly clean my air filter and operate my nest thermostat. I still operate sort of old school but he encouraged me to utilized the nest app to help manage the temperature of my home. Most people use jargons, or acronym when explaining techniques, but Brandon was very patient with me and did not mind explaining anything more than once. It was a pleasure to meet him and started my weekend off in a good way."
New System Installation
416 neighbors recently requested a quote
Recommended by73%of homeowners
Markool Heating & Cooling, LLC
4.7(
21
)
Central A/C - Service or Repair

Serving Jefferson, MD and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Was looking for a company to service/maintenance. Called them and shared my concerns. Scheduled and appointment within 3 days. Technician was polite and professional. Could tell he knew about AC unit and his profession. Fair cost/pricing Highly recommend."
Response time7 hrs
5 neighbors recently requested a quote
Recommended by84%of homeowners
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FAQs for central a/c service or repair projects in Jefferson, 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 Jefferson, 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.