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Find Central a/c service or repairers in Millersville

Avatar for Supreme Service Today
Supreme Service Today
4.4(
475
)

Serving Millersville, MD and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Supreme was polite, professional, and timely. They serviced the system and explained what items require repairs for long-term efficiency. I was very pleased and contacted them again for another system's servicing."
Response time1 day
Response rate100%
68 neighbors recently requested a quote
Avatar for Grove Heating and Cooling Inc
Grove Heating and Cooling Inc
4.7(
153
)

Serving Millersville, MD and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Grove did a great job in presenting all options for our new AC system and potential air cleaning systems (without making any aggressive sales pitches), and then did a great job with installing the new system. The new system has been in place for a few weeks now and is working very well - great job by Grove."
Response time5 hrs
Response rate100%
17 neighbors recently requested a quote
Avatar for GAC Services
GAC Services
4.8(
292
)

Serving Millersville, 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
27 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for 3MMECHANICAL
3MMECHANICAL
4.9(
25
)

Serving Millersville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Emergency services offered

Warranties offered

"3MMechanical provides excellent customer service. He's reliable, efficient, knowledgeable, and goes out of his way to ensure there job is done professionally and cost effectively."
SERVICE CALLS
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SERVICE CALLS

+8

Response time3 hrs
Response rate89%
Recommended by4%of homeowners
Avatar for Edwin's Air Conditioning & Heating, LLC
Edwin's Air Conditioning & Heating, LLC
4.9(
28
)

Serving Millersville, 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
)

Serving Millersville, 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
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+118

Response time5 hrs
108 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for At Your Service Heating & Cooling, LLC
At Your Service Heating & Cooling, LLC
4.3(
193
)

Serving Millersville, 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
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+1

Response time11 hrs
Response rate95%
31 neighbors recently requested a quote
Avatar for McCrea Heating & Air Conditioning Services of MD
McCrea Heating & Air Conditioning Services of MD
4.5(
318
)

Serving Millersville, MD and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"I couldn't be happier with the service I received from McCrea Heating and Air Conditioning Services of Maryland. Upon returning from vacation on a 100 degree July day, I found my old HVAC system basically dead (90 degrees in my kitchen!) ... Shane immediately came out to provide an estimate, we signed a contract on the spot, and he kindly provided some freon to hold me over until the new system could be installed. Brian and Nick showed up exactly on time to install the unit, used drop cloths to protect my flooring, and were exceedingly polite and professional throughout. I'd highly recommend this organization."
Additional Photos
Additional Photos
Additional Photos
12 neighbors recently requested a quote
Recommended by87%of homeowners
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FAQs for central a/c service or repair projects in Millersville, 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 Millersville, 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.