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Find Air conditioning pros in Markham

Avatar for Conde Tech Services, LLC
Conde Tech Services, LLC
5.0(
206
)

Serving Markham, VA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Our heat went out in the worst conditions...Sunday night with a snowstorm on its way. Matt came out, troubleshooted our furnace and the family was warm in no time. Great customer service and competent expert with over 15 years supporting this areas families"
Gas Fireplace Service
Gas Logs Maintenance
Heat Repair
AC Maintenance
Cleaned outdoor unit

+2

Response time10 hrs
Response rate92%
Recommended by99%of homeowners
Avatar for McCrea Heating & Air Conditioning Services of VA
McCrea Heating & Air Conditioning Services of VA
4.6(
373
)

Serving Markham, VA and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"The technician (Shammion) arrived on time and spent time listening to my concerns and answered my questions before proceeding with the work. Shammion has serviced my furnace and a/c unit previously, and on each occasion he has spent time informing me how various parts of my HVAC should work and what I need to do to get the most from the systems. On this occasion, Shammion instructed me on how to use my new thermostat and how best to keep my condenser coil clean in the future. The work was done expertly and in a professional manner, and I highly recommend Shammion and McCrea Heating and Air Conditioning."
Additional Photos
Trane Unit
Additional Photos
19 neighbors recently requested a quote
Recommended by91%of homeowners
Air We Breathe LLC
5.0(
20
)

Serving Markham, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Offers commercial services

"Air We Breathe LLC exceeded our expectations. We needed them in a pinch and they were able to get us on their schedule within hours. Gerald had our problem identified and a solution in the works within 20 mins of being there. We appreciate his professionalism and will recommend them to all our friends and family."
My Work
My Work
Response time5 hrs
22 neighbors recently requested a quote
Recommended by55%of homeowners
Avatar for Fauquier Mechanical, LLC
Fauquier Mechanical, LLC
4.9(
38
)

Serving Markham, VA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Thank you Fauquier Mechanical (Derek Goff and staff) for the excellent work done installing our new central air conditioning system. We highly recommend this company. Their knowledge, thoroughness, punctuality and overall professionalism gave us peace of mind. The quote they gave was the price we paid-no hidden costs- no high pressure sales. We highly recommend this company."
New Trane Air Handler
New Trane Heat Pump
Prepping for Indoor Air Handler
Old Rheem Air Handler
Old Rheem Heat Pump

+7

Response time10 mins
12 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Appleton Campbell
Appleton Campbell
4.6(
338
)

Serving Markham, VA and surrounding areas

Approved

In business since 1976

Free estimates

Emergency services offered

"The night before my biannual HVAC check up, I found my basement had some flooding. I have been working with Appleton Campbell for a YEAR and the experiences have been unwanted but exceptional. No one wants to have their sump pump die, but mine did this week. Today Ethan and David came by to check on the new furnace and airconditiong system I had installed last year. THANK GOD they came today. It was a rescheduled visit, but I found out my basement had flooded a bit. I had my HVAC unit inspected and now they are installing a new sump pump Monday. I was hoping Appleton and Campbell could provide guidance as to what was happening and who to call to fix it. They are doing everything. Last year I was purchasing my Mom's house as she had passed away. A week before closing the HVAC unit went out. They came out and a day later I had a team of people replacing the system. I have natural gas and pay a monthly fee instead of paying a huge amount the months usage spikes. This new HVAC system is so efficient that I had 4.5 months where I didn't have to pay a bill because I ended up with a large credit."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

Response time11 hrs
Response rate98%
16 neighbors recently requested a quote
Avatar for Petro Home Services
Petro Home Services
4.3(
103
)

Serving Markham, VA and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"There was a snag at the beginning when they realized, after beginning to dig, that the AC unit was on top of the oil tank and they'd have to call someone in to move it before digging could continue. That delayed things a few days, but thereafter they did a good job of digging and were very careful with our trees. They also took care not to ruin the lawn with the machinery. The new tank and heater were quickly put in the basement with no problems."
Additional Photos
Additional Photos
Additional Photos
Response time6 days
16 neighbors recently requested a quote
Recommended by86%of homeowners
T&J Service LLC, Heating & Cooling
4.8(
19
)

Serving Markham, VA and surrounding areas

Approved

In business since 2012

Free estimates

Offers commercial services

"T&J Service installed a beautiful new Trane system at my home in Fairfax on May 14, 2024. They were recommended to me by my neighbor who has been using them for many years. Without a doubt, Diep and Tran are the most highly-skilled HVAC professionals that I have encountered in over 40 years. This was a very large, complex system to install and they got it done in one day. These are some of the hardest working, most dedicated guys that I've ever seen! I absolutely love my new Trane system. They even custom made a beautiful plenum for my air handler --handcrafted out of stainless steel (Diep is also a skilled metal craftsman). 5 STARS"
Response time4 days
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Appleton Campbell, Inc.
Appleton Campbell, Inc.
4.3(
59
)

Serving Markham, VA and surrounding areas

Approved

In business since 1976

Free estimates

Emergency services offered

"The service that Zack Weaver and Justin Fox provided when they installed my new furnace was fantastic. The attitude and willingness to answer my questions are what you are looking for when such a major addition to your home is happening. I have been in the people business for over 30 years and these professional rank in the top 5% when it comes to service. Job well done."
Happy HVAC Technician
Electrician gathering parts
Checking in the equipment needed for the day
Happy Electricians
We make our own sheet metal!

+9

Response time8 hrs
143 neighbors recently requested a quote
Recommended by93%of homeowners
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FAQs for air conditioning projects in Markham, VA

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 Markham, VA homeowners’ guide to air conditioning services

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