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Find Air conditioning pros in Ellicott City

Avatar for MARYLAND HEATING & COOLING
MARYLAND HEATING & COOLING
4.9(
90
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Install or Replace+3 more

Serving Ellicott City, MD and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"I am an engineer and I know everything about air conditioning. I could do the installation myself, but I do not have a permit to work with some freons, and I do not have all the required tools, so I had to call a HVAC company to replace an old 2.5 ton heat pump system (that used R-22) with a new 2.5 ton heat pump system (that uses R-410A). The freon compressor in the old system had a short circuit to the ground, but because of the R-22 phaseout I had to replace the entire system rather than just the dead compressor. I contacted 13 companies that work in my area. 9 of them told me that they were very busy and could not take new orders. 4 companies sent salesmen who gave me price estimates. Three of the four price estimates included items that were not necessary, which is what pushed the prices up. When two people (Debbie Thomas and Ron Thomas) from Maryland Heating and Cooling showed up, they started to discuss with each other (in my presence) which items I do not need to replace; this would save me money. In the end they decided that none of the existing duct work needs to be modified and that the old copper freon lines are in good shape and can be re-used, all the wiring and fuses need not be replaced, and the old thermostat is perfectly fine. In the end they came up with the lowest price; significantly lower than the three other offers. Furthermore, they were able to do the installation on the second day after I signed the contract and paid the deposit. I was watching them while they did the work, and I am confident that they did everything right, because I understand exactly what they were doing and why. In other words, they did not cut any corners. And they were completely honest with their price estimate. I was very impressed. I can recommend this company."
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+6

Response time6 hrs
Response rate100%
4 neighbors recently requested a quote
Avatar for Buric Heating and Air Conditioning
Buric Heating and Air Conditioning
5.0(
25
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Install or Replace+4 more

Serving Ellicott City, MD and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"I like to research before choosing. I received 4 quotes for the job and Nick Buric was the only one that listened to our needs and created an option that was perfect for the space...as well as being at a reasonable cost. They did a really great job installing a slim "ducted" mini-split unit in a small concealed ceiling space in my basement. The unit is completely hidden and uses ducts & vents to provide efficient heat and AC in our basement -- it is super quiet too. These guys are real pros and did what was right & needed to best suit the house versus what would have been easiest for them -- the other firms I talked to didn't want to touch the job (quoted a traditional concealed mini-split mounted on the wall instead) but Nick had a vision and his team did it all to perfection. I will definitely use them again in the future and recommend to my friends and neighbors."
Happy Customer
Recommended by64%of homeowners
Avatar for No-Frost Air Conditioning & Heating, LLC
No-Frost Air Conditioning & Heating, LLC
4.7(
411
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+6 more

Serving Ellicott City, MD and surrounding areas

Approved

In business since 1971

Free estimates

Warranties offered

"This is our 4th or 5th time using No Frost Heating and Air and we are always satisfied. We knew we'd have to pay about $18k-$22k to replace our dual-zone heating and air conditioning units based on what our neighbors recently paid so we weren't surprised when No Frost quoted $20,500 before $2k in rebates. They came out to inspect our old system and provided several options (basic, mid-range, and top of the line). They also explained each one. About 2 weeks later, we had two new top of the range units installed without issue over a two-day period. The technicians called before they arrived, were efficient, and cleaned up before they left. We even received a thank you card in the mail. We will continue to turn to No Frost for all of our heating and air conditioning needs because they do a great job at a very fair price."
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Response time9 hrs
Response rate100%
16 neighbors recently requested a quote
Avatar for Amazing Heating and Air Conditioning, Inc.
Amazing Heating and Air Conditioning, Inc.
4.5(
190
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Ellicott City, MD and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"the experience with amazing heating and air condition was outstanding, they work on a very hot day putting my unit inside and outside. They pick up all their stuff, and no mess was left around to pick up. They were truly professional and I would recommend them to anyone. Fanastic job."
Rolloff Residence
Rolloff Residence
Rolloff Residence
Rolloff Residence
Jamerson Residence

+5

Response time1 day
33 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Tim Kyle Electric Heating & Cooling
Tim Kyle Electric Heating & Cooling
4.9(
370
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Ellicott City, MD and surrounding areas

Approved

Super Service Award Winner

In business since 1986

Emergency services offered

Warranties offered

"Nick Bull of Tim Kyle HVAC did an awesome job. Diagnosed the problem quickly, performed the service, explained everything clearly and all at a reasonable price. I entered into a service contract and scheduled mote maintenance work for next week. Highly recommend the Company in general and Nick specifically!"
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+17

Response time1 day
Response rate100%
16 neighbors recently requested a quote
Avatar for Edwin's Air Conditioning & Heating, LLC
Edwin's Air Conditioning & Heating, LLC
4.9(
28
)
Central A/C - Service or Repair

Serving Ellicott City, MD and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Edwin was great about showing up on time and professional. At his recommendation, thermostat was replaced but it did not able solve the issue and he recommended that I replace the entire system. Thankfully another company was able find the issue and fix it by replacing a broken part."
Response time2 hrs
Response rate90%
Recommended by96%of homeowners
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 Ellicott City, MD and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"We had them Replaced furnace and air conditioning unit. It was installed about a year ago but they came out for a regular service about a month ago. the service was free, part of the contract. I have no complaints, it was all good. They were responsive. they were punctual. I have no problems, it was a good deal when I bought it, it's a good deal now. I don't have any issues with how the service went. i bought it through them and I have no regrets and everything was the same as I felt when I bought it. It was a good deal, I made the right choice. Anytime you buy a major system and it doesn't go right you have a problem. I'm a happy camper.1 worker took less than an hour to complete."
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7 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Beltway Air Conditioning, Heating & Plumbing
Beltway Air Conditioning, Heating & Plumbing
4.6(
120
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+5 more

Serving Ellicott City, MD and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Ryan and Mitch came out and spent about 30 minutes checking out the various components of my air handler and heat pump. They scrubbed some rust off of coils and they identified a capacitor that needed to be replaced showing me how the part was showing its wear. They will return in a week to replace it. They were professional and took the time to explain things to me. I will certainly use them again!"
Brazing
XC25
XC25
Our Team!
Response time1 day
114 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Graham Solution LLC
Graham Solution LLC
5.0(
19
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Ellicott City, MD and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"⭐⭐⭐⭐⭐ I had a great experience! He repaired my heat pump quickly and professionally. He was knowledgeable, punctual, and took the time to explain what the issue was and how he fixed it. The repair was done efficiently, and everything has been working perfectly since. It’s hard to find someone who is honest, reliable, and takes pride in their work, but he definitely does. I highly recommend him to anyone needing HVAC repairs or service!"
HVAC
HVAC
HVAC
HVAC
HVAC

+5

2 neighbors recently requested a quote
Avatar for Carroll Mechanical, Inc.
Carroll Mechanical, Inc.
5.0(
26
)
Central A/C - Service or Repair

Serving Ellicott City, 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
116 neighbors recently requested a quote
Recommended by21%of homeowners
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FAQs for air conditioning projects in Ellicott City, 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 Ellicott City, MD homeowners’ guide to air conditioning services

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