Serving Summerville, SC and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Credit card accepted
"Exceptional service, very knowledgeable & worked in a timely manner. I will always recommend Maximum Air Experts, LLC!"
Serving Summerville, SC and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"Very good experience...Ac was blowing hot air...it was raining hard so I held an umbrella for the tech while he diagnosed my unit...he was honest, nice, and didnt overcharge...very very happy with this business"
Serving Summerville, SC and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"Russell was very thorough. He checked everything, asked me questions, and showed evidence of issues. He did more than simply fix a problem. He educated me on how to determine when a problem is arising. He offers a phenomenal benefit plan to keep HVAC unit in great condition year round. I would highly recommend him for your HVAC needs."
+2
Serving Summerville, SC and surrounding areas
Approved
In business since 1983
Free estimates
Emergency services offered
"Zach arrived on time and quickly checked and repaired the Central Air Conditioning System. The system works better then it has since it was new. I plan to call Carney & Son 72 Degrees for future maintenance of our system."
+11
Serving Summerville, SC and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"We had an excellent experience with Quality Pro Services. They were punctual, professional,, and very knowledgeable. They explained what they were doing throughly. It was clear that they are about customer satisfaction. I highly recommend them for high quality HVAC services."
+13
Serving Summerville, SC and surrounding areas
Approved (Corporate)
In business since 2001
Free estimates
Emergency services offered
"Very expensive but available quickly"
+2
Serving Summerville, SC and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1976
Free estimates
Credit card accepted
"Excellent customer service from our maintenance man Tunjay! He was quick and thorough and even recommended a couple of add ons that we didn't even know were options. We went with his recommendations to keep our system clean and working. Wonderful experience!"
Serving Summerville, SC and surrounding areas
Approved (Corporate)
In business since 2023
Free estimates
Emergency services offered
"Following a biannual inspection and cleaning appointment, a need was determined to open part of the ducting from the AHU to inspect a damper. The technician opened the duct, determined a damper stem appeared to be broken resulting in the damper falling to the bottom of the duct. Carolina Custom Air has already called making an appointment the next day to reinstall the damper after repair. Great work, great company. I recommend them completely."
Serving Summerville, SC and surrounding areas
Approved
In business since 2018
Free estimates
Credit card accepted
"He is reliable and timely!"
+7
Serving Summerville, SC and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"Very nice technicians . Matthew and Aaron answered all our questions. Iâ m sure you would be pleased with their work. Stacy the sales lady is very good with people. They try to make their customers happy! Call toda for your heat and air!"
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.
From average costs to expert advice, get all the answers you need to get your job done.
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