Serving Mount Juliet, TN and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"Competitive price, very responsive, excellent service."
Serving Mount Juliet, TN and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"Highly recommend. For your duct work and other home repairs !"
Serving Mount Juliet, TN and surrounding areas
Approved
In business since 1998
Free estimates
Emergency services offered
"Well versed in Air Condition brands, makes models construction designs, along with the life & maintenance cycle issues. Straight up No non-sense approach. Stacey has bent over backwards to keep our current unit running, which has been no small feat based on the multiple tube failures until the new replacement equipment arrives-"
Serving Mount Juliet, TN and surrounding areas
Approved
In business since 1985
Emergency services offered
Credit card accepted
"I cannot express my gratitude to Derryberry’s Air and Heating of Gallatin. We found them online through Angie’s List and we checked reviews there and on Yelp. We purchased our new home prior to completing the sale of our old one. My husband moved into our new (previously owned but vacant) home and found that the HVAC was inoperable in the middle of the Polar Vortex winter weather system. We received several estimates, and Derryberry’s was not he cheapest, but their expertise, thoroughness, quality of the equipment, and willingness to work with my husband (a talented DIYer) made them our first choice. These guys knew their business. From the initial estimate meeting, to the scheduling and installation, everything went smoothly, as promised, no surprises, etc. They completely tore out the old heat pump and venting system, installed ALL new venting runs, upgraded gas lines (we changed from electric to propane) insulated all venting and installed a wireless thermostat, condenser, ION air purifier and HVAC. They cleaned up daily (this was a BIG project) and discussed all installation parameters or changes with my husband prior to doing anything. We liked the quality of their services so much, that we just had them return to quote us a secondary unit for an upstairs bonus room and zoned AC system for an enclosed solarium. My husband said that each of the workers, said goodbye and shook his hand each day upon leaving. Little things count. Thorough, honest, quality service providers. Thank you."
Serving Mount Juliet, TN and surrounding areas
Approved
In business since 2018
Free estimates
Small jobs welcome
"AJ was very professional, knowledgeable and reasonable prices. Didn't feel like I was getting taken advantage of. He explained everything as he was going. He worked on two units, the upstairs and downstairs. It was a pleasure doing business with AJ. I will call him again if I need anything done with my hvac and recommend that you do the same. You will not be disappointed!!!!! Thanks to him we have air conditioning again!!!!"
Serving Mount Juliet, TN and surrounding areas
Approved
In business since 2019
Free estimates
Warranties offered
"I would definitely recommend Icon to anyone who is in need of air conditioning service. They did a professional job for me and everything was done on time. They will stand behind their work and make sure everything is done to your satisfaction. Keep up the good work!"
+3
Serving Mount Juliet, TN and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"The Premo tech Jeremiah was knowledgeable and helpful. He not only fixed the AC problem quickly, but also helped us know the best way to run the system for the way it was built. We will definitely call Premo again!"
+41
Serving Mount Juliet, TN and surrounding areas
Approved
In business since 1980
Free estimates
Warranties offered
"Tyler and Henry were complete professionals. They did not over sell me but gave me plenty of good options depending on my budget. They were able to fix a problem that was a cause for most headaches. Thank you guys for doing such a great job."
+12
Serving Mount Juliet, TN and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"Great communication before, during and after the service. Explained everything he was doing and was easy to understand. Very professional, kind and trust worthy."
+6
Serving Mount Juliet, TN and surrounding areas
Approved
In business since 1995
Free estimates
Emergency services offered
"Lee was a lifesaver! Will def call him again."
+12
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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