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Top-Rated Central a/c service or repairers in Hanover - Updated Nov 2026

Avatar for Grove Heating and Cooling Inc
Grove Heating and Cooling Inc
4.7(
153
)
Central A/C - Service or Repair

Serving Hanover, MD and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Grove Heating & Cooling came to the rescue 5/17 after another local company couldn't complete the job. We needed our heat pump/compressor moved for the installation of a patio then reconnected. The "other" company disconnected then couldn't schedule to finish even after giving them a months notice ahead of time. We found Grove and gave them a call. It was after hours and the on-call tech returned the call. He wasn't able to come out that night but made sure to call to schedule the very next morning. By noon we had service to reconnect the heat pump and 3 hours later we were up and running. Everyone at Grove were so responsive and went out of their way to make sure we felt like a priority. You can really tell why they have been in business as long as they have been with how well they treat their customers on top of being technically proficient. Our family is now a super fan and advocate for Grove. Highly Recommended! Mike"
Response time5 hrs
Response rate100%
12 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 - Service or Repair

Serving Hanover, 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 Petro Home Services
Petro Home Services
4.4(
1,786
)
Central A/C - Service or Repair

Serving Hanover, MD and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"They were really good. They trustworthy, dependable provides excellent service, punctual, on time and considerate. I recommend them highly. Their prices were fair and they were quick."
Additional Photos
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Response time6 days
Response rate100%
18 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 Hanover, MD and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"I neede same day service and they were able to assist. The technician was very knowledgeable and professional. The job was done quickly and efficiently and the results were evident right away. Very appreciative of their work and would gladly recommend their services to others."
Response time2 hrs
Response rate90%
Recommended by96%of homeowners
Avatar for JDL HVAC & Plumbing Services
JDL HVAC & Plumbing Services
4.5(
951
)
Central A/C - Service or Repair

Serving Hanover, 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
193 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for MARYLAND HEATING & COOLING
MARYLAND HEATING & COOLING
4.9(
91
)
Central A/C - Service or Repair

Serving Hanover, MD and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Fantastic service and is now my go-to for any HVAC issues. AC wasn’t blowing cold in June during covid. Hopped on Internet to look for good reviewed HVAC repair and the first couple of good reviewed places I called either weren’t taking new clients or who’s first available appointments were weeks away. Called MD H&C and they were able to fit me in the following day. They gave me the price of each step BEFORE performing the step and making sure I consent (i.e. our diagnosis fee is X amount, ok your issue is this...the cost to fix it plus the diagnosis will cost Y, etc). There also were no hidden charges. The number I was provided was what I paid and I thought a very fair/good number. They also educated me each step of the way and showed me what caused the issue and how they would fix it. I have dial zone HVAC with both the same condescending unit brands for each level. They even checked the 2nd one out free of charge and fixed some things to prevent the same issue from happening in that one in the future (it was on its way to the same issue). Cannot recommend Maryland Heating and Cooling enough. Will use them for all my future needs!"
Additional Photos
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+6

Response time6 hrs
Response rate100%
4 neighbors recently requested a quote
Avatar for Graham Solution LLC
Graham Solution LLC
5.0(
19
)
Central A/C - Service or Repair

Serving Hanover, MD and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"⭐⭐⭐⭐⭐ I had a great experience! He repaired my heat pump quickly and professionally. He was knowledgeable, punctual, and took the time to explain what the issue was and how he fixed it. The repair was done efficiently, and everything has been working perfectly since. It’s hard to find someone who is honest, reliable, and takes pride in their work, but he definitely does. I highly recommend him to anyone needing HVAC repairs or service!"
Full system replacement
Service / repair
Service / repair
Service / repair
Service / repair

+5

2 neighbors recently requested a quote
Avatar for McCrea Heating & Air Conditioning Services of MD
McCrea Heating & Air Conditioning Services of MD
4.5(
318
)
Central A/C - Service or Repair

Serving Hanover, MD and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"We've had generally positive experiences with McCrea. In July we had an issue with our secondary A/C unit - a minisplit that was leaking into the room. $109 for the technician to come out. When they came, the repair was small - clearing a drainage line. Called back within 30 days because the leak did not resolve, McCrea said they would send someone back out, no charge. We had some challenges and rescheduling, leading to a misunderstanding that we would be charged for a technician having to return. On that basis, I left some negative reviews online - to which McCrea responded, reaching out via phone to set an appointment for a technician to come out. Two technicians came today and spent a good deal of time fixing our initial issue. They went above an beyond in fixing the unit, remounting, and appropriately sealing the unit to the wall. On the basis of this, I'm changing my review of working with McCrea to a 5-star experience. Some miscommunication happened on both ends - we're all human - but their willingness to make things right really shows a business that values integrity. Would use again."
Additional Photos
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6 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Horizon Services, LLC (MD)
Horizon Services, LLC (MD)
3.8(
1,465
)
Central A/C - Service or Repair

Serving Hanover, MD and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"KG gave us an estimate, came back with a colleague to complete rerouting the pipes and cleaned the place beautifully. We called over the weekend for a slight issue and on Monday he came back to fix it. All is working and we are pleased, especially since 4 other plumbers were consulted and they were unresponsive either to provide an estimate or come and complete the repairs."
Horizon Services Heating and Cooling
Horizon Services Heating and Cooling
Horizon Services Heating and Cooling
Horizon Services Heating and Cooling
Horizon Services Heating and Cooling

+27

12 neighbors recently requested a quote
Recommended by89%of homeowners
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FAQs for central a/c service or repair projects in Hanover, 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 Hanover, 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.