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Find Central a/c service or repairers in Frederick

Avatar for Presidential Heating & Air Conditioning
Presidential Heating & Air Conditioning
4.6(
454
)

Serving Frederick, MD and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1982

Free estimates

Emergency services offered

"Came for routine maintenance and estimate for a humidifier. The customer service was excellent, from scheduling to the job itself. Glad I found them and expect to now be a long term customer."
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+6

25 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for GAC Services
GAC Services
4.8(
292
)

Serving Frederick, 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."
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61 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Tim Kyle Electric Heating & Cooling
Tim Kyle Electric Heating & Cooling
4.9(
369
)

Serving Frederick, MD and surrounding areas

Approved

Super Service Award Winner

In business since 1986

Emergency services offered

Warranties offered

"Excellent service from Ben and Justin. Professional, prompt, and courteous. Explained what needed to be done and the reasons why. Will continue to use their services. Carole Smolinski"
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+17

Response time1 day
Response rate95%
15 neighbors recently requested a quote
Avatar for Hecomo
Hecomo
5.0(
11
)

Serving Frederick, MD and surrounding areas

Approved

Credit card accepted

Customers say: True professional

"From not having a water supply for my whole home bypass humidifier, to having a repaired, new water supply line and instant winter comfort. All in less than two hours. Thanks Edmond and team for getting me taken care of right after I arrived home from work. Wealth of knowledge, too, about HVACs warranties, and other good general advice for first-time homeowners like myself! Glad to have signed-up tonight as a member - eligible for discounts tonight and future maintenance services. Highly recommend!"
Heating & A/C Project
Heating & A/C Project
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+8

Response time7 hrs
10 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for BlueStar Air Mechanical Inc.
BlueStar Air Mechanical Inc.
4.9(
32
)

Serving Frederick, MD and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"I contacted Bluestar Air Mechanical for a second opinion after an appointment with Air One. I have a Carrier HVAC system, and the Air One technician recommended a complete system replacement, claiming the blower was bad, the furnace control board needed replacing, and that there were other issues. Since replacing the HVAC is a big investment, I wanted to get a second opinion. It was only after comparing the service from Bluestar that I realized Air One may have been pushing for a new system sale or lacked the expertise to properly diagnose and repair the actual problems. Isaac, the technician from Bluestar, spent about an hour thoroughly diagnosing and fixing the issues. He found burnt wiring in the furnace and discovered that the wrong capacitor had been incorrectly installed in the AC. Isaac replaced the burnt wiring in the furnace and the capacitor in the AC. After these repairs, my Carrier system was back up and running—without the need for a costly replacement. Bluestar, and Isaac in particular, demonstrated professionalism, expertise, and honesty. They focused on resolving the actual issues instead of pushing for an unnecessary system replacement. I highly recommend Bluestar for their reliable service and Isaac’s thorough and knowledgeable work."
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+13

Response time6 hrs
2 neighbors recently requested a quote
Recommended by79%of homeowners
Avatar for Michael Bonsby HVAC, Plumbing & Electrical MD
Michael Bonsby HVAC, Plumbing & Electrical MD
4.2(
133
)

Serving Frederick, 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

42 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Buric Heating and Air Conditioning
Buric Heating and Air Conditioning
4.7(
20
)

Serving Frederick, MD and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"We initially called Davis and Davis when our A/C started blowing hot air. They came out three separate times, charged us money for repairs that didn't work, then decided we needed a full replacement for $4,500. We called Buric for a second opinion. Tom arrived on time, took 20 minutes to (correctly) find the problem, told us we didn't need a replacement, and repaired it for just over $400. It works great to this day. He pretty much restored our belief that honest technicians still exist in the world and saved us like $4,000. Only had one experience with them, but will always recommend them."
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+7

Response time2 hrs
Response rate93%
7 neighbors recently requested a quote
Avatar for Holtzople Heating, Air Conditioning, & Electrical Services
Holtzople Heating, Air Conditioning, & Electrical Services
4.9(
207
)

Serving Frederick, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Emergency services offered

"Just had an emergency visit to replace capacitor in one of my two HVAC units. Was able to schedule my favorite tech Kevin through the excellent front desk staff. Called in early morning and same day repair work - and Kevin fixed the problem even though the house electricity suddenly cut off halfway through the visit due to the remnants of Hurricane Debby coming through. Our family been with Holtzople since 2008 with the installation and maintenance of two TRANE heat pump units. We have always been extremely happy with Holtzople. Their expertise and knowledge of HVAC operations is superb. But most importantly, from the HVAC techs and Kevin to the front office staff, the people at Holtzople are kind, helpful and genuinely interested in taking care of us. This shows in our semiannual service plan visits as well as the rare emergency needs that pop up like the situation discussed above. And we have been very happy with our TRANE HVAC units. We will have Holtzople as our HVAC company forever. We highly recommend them to all our local friends and neighbors in central Maryland. Simply a great company with great people. 👍"
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+47

Response time12 hrs
9 neighbors recently requested a quote
Recommended by91%of homeowners
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FAQs for central a/c service or repair projects in Frederick, 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 Frederick, 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.