Top-rated central a/c service or repairers.

Get matched with top central a/c service or repairers in Unionville, MD

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Central a/c service or repairers in Unionville

Avatar for Wenbrooke Services
Wenbrooke Services
4.6(
107
)

Serving Unionville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Emergency services offered

Warranties offered

"Still working with them. they have not repaired the unit but it is running better. would give a better rating if they would have found and repaired the leak on the first visit. as for now they will come back to see if they can find the leak. My review and research of the latest technology shows there are diodes with sensors that can detect leaks but neither of the Pros hired this year or last year don't seen to have this equipment or capability."
Commercial Sign
Dinning room fixture
Commercial Office
Kitchen Pendants
Response time11 hrs
3 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for SPECS Heating & Cooling
SPECS Heating & Cooling
4.8(
17
)

Serving Unionville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Credit card accepted

"I recently had SPECS Heating & Cooling install an AprilAire humidifier for me, and I couldn't be happier with the results. From start to finish, their service was exceptional. The team was professional, knowledgeable, and efficient, ensuring that the installation process went smoothly. Since having the humidifier installed, my indoor air quality has significantly improved, and I've noticed a positive difference in the comfort of my home. I highly recommend SPECS Heating & Cooling for their top-notch service and expertise in HVAC solutions. Five stars all around!"
Response time5 hrs
19 neighbors recently requested a quote
Recommended by50%of homeowners
Dave's Mechanical Services
5.0(
1
)

Serving Unionville, MD and surrounding areas

Approved

In business since 2006

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

Response time4 hrs
Recommended by100%of homeowners
Avatar for North Alabama Technical Services
North Alabama Technical Services
4.9(
124
)

Serving Unionville, MD and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"Excellent service, very fast response to my request for service, picked up laptop, diagnosed issues. Initially thought it was an OS update issue but the hard drive had failed along with other components (including 'CPU). Because other components were involved, a new solid state hard drive was put into a laptop with a working processor - same type CPU as in the failed unit. The laptop was repaired and returned in less than a week. This company picked up and dropped off the laptop (driving from Huntsville, AL (about 60-70 minutes)-- great service in this covid environment. I would recommend this company to my family./friends and will use again."
2014 Super Service Award Winner!
Additional Photos
Recommended by97%of homeowners
Avatar for Tetteris Hvac llc
Tetteris Hvac llc
4.7(
181
)

Serving Unionville, MD and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"Tetteris Heating & Air is very reliable, professional, and the quality of the work is great. We have used them multiple times now for central AC repair and they have done a great job every time. Most recently, our AC unit broke while I was 9 months pregnant and 2 days away from going to the hospital to be induced. They were able to get a technician out here the very next day to fix it!"
Ductless Mini-split install.
Gas furnace & Ac install.
Full system install
75 ton roof top package unit install
Goodman

+1

Response time5 hrs
Response rate89%
Recommended by95%of homeowners
Avatar for Continental Services
Continental Services
4.9(
17
)

Serving Unionville, MD and surrounding areas

In business since 1983

Credit card accepted

"Promptly returned email regarding service request, on Saturday. Responded same day to repair 2Ton Geo unit (Waterfurnace). Extremely knowable on geo-thermal systems, the repairs were made in timely manner at a fair price, my only regret on this geo unit is I should have had Continental install the system in the first place, it’s seems very likely I would not be haveing the maintenance issues."
Recommended by100%of homeowners
...
Showing 1-10 of 54
FAQs for central a/c service or repair projects in Unionville, 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 Unionville, 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.