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Top-Rated Air conditioning pros in Ashton - Updated Nov 2026

Avatar for Buric Heating and Air Conditioning
Buric Heating and Air Conditioning
4.7(
20
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Service or Repair+4 more

Serving Ashton, 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 time8 hrs
14 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Hecomo
Hecomo
5.0(
11
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Install or Replace+4 more

Serving Ashton, MD and surrounding areas

Approved

Credit card accepted

Customers say: True professional

"Edmond responded right away and listened to my explanation of the issue over the phone. It was Friday afternoon and we both agreed the issue was non-urgent so we scheduled an early Monday morning visit. He showed up at 8a sharp as we agreed and he did a thorough check of our AC system. Edmond is very knowledgeable and he explained everything thoroughly. He gave me a couple of suggestions. I’m pretty handy so I’ll try to tackle it myself. He said to just call him if I get stuck and he could either come back out or coach me over the phone. Pricing is reasonable and quality of service is top-notch. I’ll keep them on speed dial and I highly recommend Hecomo for HVAC service!"
Heating & A/C Project
Heating & A/C Project
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+8

Response time8 hrs
Response rate100%
10 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 - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+6 more

Serving Ashton, 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."
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6 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Simply Home Service, LLC
Simply Home Service, LLC
5.0(
30
)
Central A/C - Service or RepairCentral Air Cleaner - Install or ReplaceCentral Air Cleaner - Repair or Service+2 more

Serving Ashton, MD and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Sean was great during his visit to fix our furnace. He met us right away on a weekend, knew exactly what was wrong and repaired it for a very reasonable price. He was so good we asked him on the spot to do our twice a year furnace/AC checkups. Can’t recommend him highly enough."
Response time3 hrs
Response rate97%
Recommended by93%of homeowners
Avatar for GAC Services
GAC Services
4.7(
295
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Ashton, MD and surrounding areas

Approved (Corporate)

In business since 1970

Free estimates

Warranties offered

"Angie's List reviews made me go with GAC Services for a new furnace and air conditioning unit. Five mechanics showed up early in the morning in three trucks. They were clean cut young men and very polite. They made a lay down area in my basement with blankets. They wore covers over there shoes while in and out of the house. They were very respectful of my home. They worked non stop until 5:00 PM. They had a separate sheet metal mechanic that showed up and did really nice sheet metal work. I was impressed. After a year went by my thermostat went out and they came out and replaced it free of charge. I signed up for the maintenance contract and they come out twice a year . Once in the winter and once in the summer. Another part went bad after two years and it was under warranty and they replaced it free of charge. They are honest and reliable. I highly recommend them."
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6 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Petro Home Services
Petro Home Services
4.4(
1,786
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Ashton, MD and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"

we had a leak problem and the tech came and looked over our equipment, fixed the problem and left. It cost us nothing and we have had their home heating service contracts for over 20 years.  They have NEVER ONCE not shown up or not helped and in the two furnace emergencies we had--they were here with in 1hr. 

We are very happy.


"
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Response time6 days
Response rate100%
18 neighbors recently requested a quote
Avatar for Ward Services LLC
Ward Services LLC
5.0(
20
)
Central A/C - Service or Repair

Serving Ashton, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Emergency services offered

Warranties offered

"I hired Ward Services to replace my AC and furnace in 2023, then again in 2026 for my new home, as well as regular maintenance and system check up since 2023. Their service is consistently professional, and the cost is reasonable comparing to the estimates by some big HVAC companies. The lead technician always takes time to explain in detail the existing problems and options. Highly recommended."
Rheem Indoor AC Unit
Rheem Outdoor AC
Thermal Imaging
Air Sealing
Attic Cleanup

+25

Response time6 hrs
Response rate100%
Recommended by5%of homeowners
Avatar for Carroll Mechanical, Inc.
Carroll Mechanical, Inc.
5.0(
26
)
Central A/C - Service or Repair

Serving Ashton, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"My air conditioning stopped working last night. I called Carroll mech . They responded immediately and sent technician to the house few hours later. Jordan Scott was very professional. He checked the system carefully and fix the issue soon. Really appreciate the service!"
Trane Heat Pump
Carrier AC + Furnace
Response time5 hrs
95 neighbors recently requested a quote
Recommended by21%of homeowners
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FAQs for air conditioning projects in Ashton, 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 Ashton, MD homeowners’ guide to air conditioning services

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