
Serving Cottontown, TN and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"He came and fixed the vibration that I hear when I operate the AC."


Serving Cottontown, TN and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"He came and fixed the vibration that I hear when I operate the AC."

Serving Cottontown, TN and surrounding areas
Approved
In business since 1998
Free estimates
Emergency services offered
"Stacey proved to be punctual, knowledgeable, and very helpful regarding my particular AC problem. From now on Mid-Tenn is my go to company for HVAC problems!"

Serving Cottontown, TN and surrounding areas
Approved
In business since 2018
Free estimates
Small jobs welcome
"AJ was professional and arrived on time. He had the problem diagnosed and fixed in less then 30 minutes. I will trust UAV Air and Heat with all my HVAC needs."

Serving Cottontown, 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 Cottontown, TN and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"Excellent service - friendly and professional. Explained everything they did, and went above and beyond."





+41

Serving Cottontown, 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 Cottontown, TN and surrounding areas
Approved
In business since 2019
Emergency services offered
Credit card accepted
"mr. copeland was wonderful, professional, friendly, helpful. i highly recommend him."

Serving Cottontown, TN and surrounding areas
Approved
In business since 1995
Free estimates
Emergency services offered
"Lee was a lifesaver! Will def call him again."





+12

Serving Cottontown, TN and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1947
Free estimates
Emergency services offered
"My technician was very polite and went above and beyond to make sure everything was perfect. Iâ d recommend him to anyone. His name is Brandon p Jackson. Thank you for our repair and being so polite."


Serving Cottontown, TN and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
"I highly recommend Blue Collar HVAC. They were quick to respond, thorough, honest and very reasonably priced! Fixed the issue in a timely matter and my hvac is running like new again. Thanks Blue Collar!"



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.

Use this guide to budget for appliance installation costs based on factors such as appliance type, installation complexity, labor rates, and more.

Explore how factors such as materials, local labor rates, and the type of damage affect the cost to repair a burst pipe.

Use this guide to learn how much rebar costs per foot so you can budget for your next big home improvement project.

Discover how factors such as linear footage, local labor rates, and trim type affect the total cost of painting baseboards.

Learn how much cat or dog door installation costs based on factors like the door size, material, location, and added features.

Discover how much an electric furnace costs based on factors such as unit size, local labor rates, electrical upgrades, and ductwork condition.