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

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 Parkville, MD and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Replaced old HVAC system. Very knowledgeable team that provide competitive and comprehensive solutions. Great customer service and were in and out in one day with quality workmanship. We couldn t be more pleased!"
Rolloff Residence
Rolloff Residence
Rolloff Residence
Rolloff Residence
Jamerson Residence

+5

Response time1 day
42 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Blessed Cooling N Heating Services, LLC
Blessed Cooling N Heating Services, LLC
4.9(
17
)
Central A/C - Service or Repair

Serving Parkville, MD and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"Genuinely honest, technically competent, and a penchant for pragmatic solutioning are the best ways I can describe Aaron and Blessed Cooling and Heating. They are at the top of our list for any future HVAC work."
Response time50 mins
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 Parkville, MD and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"I had a great experience with this HVAC company! They were professional, arrived on time, and quickly diagnosed the issue with my air conditioning unit. They explained the repair clearly, completed the work efficiently, and had my AC running perfectly again. The technician was courteous, knowledgeable, and took the time to answer all of my questions. I really appreciated the honest service and fair pricing. I highly recommend them to anyone looking for reliable HVAC service!"
HVAC
HVAC
HVAC
HVAC
HVAC

+5

2 neighbors recently requested a quote
Avatar for Pohlman Plumbing Inc
Pohlman Plumbing Inc
4.4(
42
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+10 more

Serving Parkville, MD and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

Pohlman Plumbing is a local, family-owned and -operated full-service plumbing and HVAC company serving the Baltimore metro area. Founded in 2008, our professional and friendly customer service plus our top-notch skills have made us one of the most trusted local plumbers in Baltimore. \n \nWhen you choose to work with Pohlman Plumbing, you can have peace of mind knowing we always stand by the Pohlman Promise: fast service, at a fair price, and done right the first time.

Finished Shower
Finished Shower
Panoramic View
Vanity
Mid-replacement

+10

Response time8 hrs
Response rate97%
Recommended by86%of homeowners
Avatar for Carroll Mechanical, Inc.
Carroll Mechanical, Inc.
4.7(
25
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Parkville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Warranties offered

"I recently had a HVAC and water heater installation by Carroll Mechanical, Cris Lopez and his team. They were very respectful of my home and professional throughout the install. I am grateful and appreciative of working with the owner on deciding the HVAC unit to be installed. I found him to be the consummate professional, a person of integrity, transparent, responsive to my questions and willing to work with me to gain my business. I highly recommend Carroll Mechanical."
Ins
Ins
Response time10 hrs
275 neighbors recently requested a quote
Recommended by14%of homeowners
Avatar for Horizon Services, LLC (MD)
Horizon Services, LLC (MD)
3.8(
1,465
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Service or Repair+4 more

Serving Parkville, MD and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Fantastic company from start to finish! The gentleman who sold us the furnace, their salesman, Alex, was upfront in getting us the best price, along with a 10 yr parts and labor warranty included! The price for the furnace and installation was great, and they guaranteed apples to apples to meet any other companies cost. They offer a $100. fee if we found anyone to do it cheaper, with the same offer. They were able to schedule the intallation quickly, and did a great job intalling it. I would highly recommend using this company for your heating and air conditioning needs. Great company! Great prices! Great work! You won't be disappointed using Horizon Services! Take care....."
Horizon Services Heating and Cooling
Horizon Services Heating and Cooling
Horizon Services Heating and Cooling
Horizon Services Heating and Cooling
Horizon Services Heating and Cooling

+27

11 neighbors recently requested a quote
Recommended by89%of homeowners
HVAC Sales, LLC
5.0(
10
)
Central A/C - InstallCentral A/C - Install - For BusinessDuctless Mini-split A/C - Install or Replace

Serving Parkville, MD and surrounding areas

Approved

In business since 1982

Warranties offered

Credit card accepted

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our major focus is on the quality our work and producing outstanding results. We are committed to creating a level of value unmatched by any of our competitors. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

Ductless system
Ductless spilt system
Ductless split system
Ductless split system
Heat Pump system

+6

Response time5 hrs
Response rate98%
Recommended by100%of homeowners
Avatar for Supreme Service Today
Supreme Service Today
4.4(
475
)
Central A/C - Service or Repair

Serving Parkville, MD and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Bought the Big Deal HVAC & Heating inspection to have the system checked. Supreme Air reached out the next day to schedule and was able to fit us in the same week. Chris called 30 minutes prior to arrival and within the scheduled window. Without having to ask, used shoe booties. Chris inspected and checked both systems along with inside & outside equipment. Spotted several small issues along with identifying the AC having low R-22. Was provided a quote for the repairs and notified they could complete the same day. There was an immediate difference in the cooling. Cannot say thank you enough. Chris is awesome."
Response time1 day
Response rate100%
47 neighbors recently requested a quote
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FAQs for air conditioning projects in Parkville, 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 Parkville, MD homeowners’ guide to air conditioning services

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