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Find Air conditioning pros in Frederick

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

"Tim was our technician. he called telling us when he would arrive. He is very professional, friendly and efficient. The work was performed professionally and was reviewed with me before his departure. The air conditioning was tested and the temperature reset before Tim left. We have used this company previously and we are extremely pleased with all of our interactions with the employees. we will Continue using Holtzople Heating and Air Conditioning Service!!. Five Stars!"
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+47

Response time12 hrs
9 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

"Everything went great. My AC died and it was close to 20 years old so I wanted the whole unit replaced. I have 4 young kids so no AC in the summer was not a pleasant option. The owner came out on site the day we called and was able to have the new unit installed the next day. I have dealt with many HVAC companies in the past as an Insurance Adjuster. These guys exceeded my expectations and were very reasonable on price. I highly recommend using Buric Heating and Air Conditioning!"
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+7

Response time2 hrs
Response rate93%
7 neighbors recently requested a quote
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

At Tim Kyle Electric, Heating & Cooling, we believe that honesty, respect, and integrity are important.\nThat’s why we have up-front pricing. You approve the price before we start your job. We also respect your home. All of our employees have to pass drug tests and background checks before they begin employment with us. All of our electricians are professionally trained and uniformed service technicians.

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+17

Response time1 day
Response rate95%
15 neighbors recently requested a quote
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 GAC Services
GAC Services
4.8(
292
)

Serving Frederick, MD and surrounding areas

Approved (Corporate)

In business since 1970

Free estimates

Warranties offered

"GAC services was able to come out for a same day trouble shooting appointment. Jim S arrived on time and was very courteous and professional. He was able to quickly identify the problem with the registers and dampers and able to get warm air flowing to the otherwise very cold areas of the house. In addition, Jim was able to recommend some additional services that would help me achieve the desired evenness of temperature such as an additional return and humidifier for the home. Great experienced master certified technician!"
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61 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for McCrea Heating & Air Conditioning Services of MD
McCrea Heating & Air Conditioning Services of MD
4.5(
318
)

Serving Frederick, MD and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"Checked Angie's List and saw a very good review for McCrea Heating and Air Conditioning, plus a special promotional coupon so gave them a try. Service tech (Mike) made a multi-point inspection. He found and corrected some minor issues and added coolant. Fortunately nothing major was required. He was on time and courteous, and readily answered the questions I peppered him with. A very positive experience."
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13 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Air Distributor HVAC
Air Distributor HVAC
4.9(
23
)

Serving Frederick, MD and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"It's a few days after the first measurable snow fall we've had in the northeast in several years and my heat pump outside unit stopped working. I switched the system to emergency heat and started making calls for help. I got in contact with Will from Air Distributor HVAC and he was able to expedite my service request and got to my house within 1 hour. He gave my system a comprehensive look, diagnosed the problem with a high degree of confidence and provided a fair quote for fixing it. He applied the fix and then much to my surprise (and appreciation) he waited an extra hour to ensure there were no other contributing factors that could present a problem in this freezing weather. I appreciate his expertise and professionalism, but also his willingness to go the extra mile to ensure my family is comfortable. All my future HVAC needs will referred to Air Distributor HVAC. Will, thank you very much for a great experience!"
Response time7 hrs
Response rate90%
Recommended by72%of homeowners
Avatar for Simply Home Service, LLC
Simply Home Service, LLC
5.0(
30
)

Serving Frederick, MD and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"I contacted Sean to repair my aging HVAC system. Although I have very little knowledge of HVAC, Sean was able to identify, explain, and plan the maintenance of my current system in language I understood and that seemed reasonable. Sean was very responsive via text during our scheduling and I'm happy with the expert level of detail he showed during inspection. I would highly recommend working with him or his team. Update: Sean came back out to resolve my filtration issues and also fixed some other problems that he noticed in the process without increasing the negotiated price. Again, Iâ m extremely satisfied with the work heâ s done and would recommend him for your HVAC needs."
Response time3 hrs
Response rate97%
Recommended by93%of homeowners
Avatar for MSR Heating and Cooling, LLC
MSR Heating and Cooling, LLC
4.8(
33
)

Serving Frederick, MD and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Moises, the company owner, is incredible. I called 5 HVAC companies to get quotes for full system replacement, and MSR was not only the most responsive, but he came out the very next day. He gave me an incredibly competitive and fair quote for my project, and we immediately gave him our business. Unfortunately, our AC died before he could do the work, but he came out to our house at 6pm on a Friday to drop off a portable AC unit so we wouldn't sweat all night long. We thought we'd be stuck without central air for a few days, but Moises came and worked 9 hours on a Saturday to replace both our furnace and our AC unit. Afterwards, he even gave us a great price on a yearly HVAC maintenance plan. MSR is run by an honest, hard-working tradesman who understands what customers want and need. I won't hesitate to recommend him to friends or to anyone who needs HVAC work done."
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+8

Response time4 hrs
Response rate99%
2 neighbors recently requested a quote
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FAQs for air conditioning projects in Frederick, MD

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

The Frederick, MD homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.