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Find Central a/c service or repairers in Baltimore

Avatar for GAC Services
GAC Services
4.8(
293
)

Serving Baltimore, MD and surrounding areas

Approved (Corporate)

In business since 1970

Free estimates

Warranties offered

"I’m back again to write another stellar review for GAC. Last year they replaced our HVAC system; this year we circled back and had them install a home generator. This was a long and drawn out process due to the various approvals needed from Montgomery County as well as coordination with Washington Gas (which ended up not just being a simple sign off but necessitating an additional, expensive upgrade to the gas line from the street to our home). Nevertheless, GAC did a fantastic job shepherding this process over the 6+ months of waiting on stakeholders, and they were also maximally accommodating to our family’s significant constraints on time and availability (due to health concerns related to a medically fragile family member). A special kudos to Sandy M, GAC’s master electrician, who took it on personally to ensure we were taken care of all throughout this process, going above and beyond with phone calls, text messages, personal visits, etc. on behalf of my family, I want to thank GAC and am giving top marks across the board for this effort which was complex , lengthy, and ultimately successful."
Additional Photos
9 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Michael Bonsby HVAC, Plumbing & Electrical MD
Michael Bonsby HVAC, Plumbing & Electrical MD
4.2(
134
)

Serving Baltimore, MD and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"I decided to cancel the repair because of cost. They made a repair that will last for a year or two and I will pay the price when this unit dies. A repair was $1,200 and a replacement was $4,300. Just too much."
Routine Maintenance
Maintenance
Mitsubish Ductless System
Outside Mitsubishi Unit
Carrier

+3

41 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Blue Dot
Blue Dot
4.1(
347
)

Serving Baltimore, MD and surrounding areas

Approved (Corporate)

In business since 1982

Free estimates

Emergency services offered

"I called a few HVAC companies on a Saturday morning, due to my A/C only blowing cool to warm air. After speaking with a couple of other companies that advertised as providing 24/7 service, Blue Dot was the only company that would come out on that Saturday. The technician that came out was named Dwight ("DJ"). DJ was exceptional! He took the time to explain what he was doing and why it was necessary. He also provided tips on how to maintain the a/c unit to keep it running efficiently. He was courteous, professional, and patient with answering my questions with a positive attitude. He repaired the unit during the visit. DJ turned a stressful situation (worrying about the possible repair) into a smooth and reassuring experience with his expertise and positive attitude."
System Installation
452 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for JDL HVAC & Plumbing Services
JDL HVAC & Plumbing Services
4.5(
950
)

Serving Baltimore, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"We received speedy and exceptional service. Service person Leron was professional, honest and knowledgeable. He was able to diagnose and repair the problem. Thank you! We highly recommend this company."
NEW INSTALL
CLEANING COILS
CLEANING COILS
 CLEANING COILS
 CLEANING COILS

+118

Response time5 hrs
162 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Buric Heating and Air Conditioning
Buric Heating and Air Conditioning
5.0(
25
)

Serving Baltimore, MD and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

With 26 years of experience Buric Heating and Air Conditioning Inc. is one of Maryland's premier HVAC contractors. We specialize in everything from central A/C, gas and electric furnaces, and heat pumps for repairs or full installations. Our pros take pride in providing the highest quality of work and customer service. So if you are looking for professionals with experience call a company you can trust at Buric Heating and Air Conditioning Inc today.

Happy Customer
3 neighbors recently requested a quote
Recommended by64%of homeowners
Avatar for At Your Service Heating & Cooling, LLC
At Your Service Heating & Cooling, LLC
4.3(
193
)

Serving Baltimore, MD and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"I cannot say enough of the service, expertise & care of At Your Service. You couldn’t ask for a nicer or a better bunch of guys/team for all your HVAC needs & servicing. I contacted AYS in 2025 for a 2nd opinion of my 20-plus year old system. Jason from AYS arrived the next day & spent several hours inspecting & analyzing my unit. Bad news...it was shot. They could do minor repairs to keep it running as long as possible but I needed a new system. As my finances were tight, I approved the repairs. Those repairs took me through our deep freeze winter & the 100 degree temps of 2026 but she just finally quit. Again, I called AYS & Jason arrived the next day to inspect my unit. He gave me the bad news & offered 3 estimates for a new system. I chose the mid-line Bosh. Their installer, Tommy & his helper, arrived the next morning at 8:45 & worked non-stop until 4:00. I want to personally thank all the guys at AYS & let them know how very much I appreciate them for the kindness, concern & mo"
Dundalk
Billboard 2
Billboard 3
Billboard 4
Billboard 5

+1

Response time11 hrs
Response rate95%
27 neighbors recently requested a quote
Avatar for Carroll Mechanical, Inc.
Carroll Mechanical, Inc.
5.0(
20
)

Serving Baltimore, 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
94 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
)

Serving Baltimore, 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%
24 neighbors recently requested a quote
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Showing 1-10 of 246
FAQs for central a/c service or repair projects in Baltimore, 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 Baltimore, 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.