Serving Blountville, TN and surrounding areas
Approved
Free estimates
Credit card accepted
Offers commercial services
"Answered my call for service immediately. Scheduled appointment first thing next morning. On time, efficient and professional. Charges very reasonable. Will use again when needed."
+3
Serving Blountville, TN and surrounding areas
Approved
Super Service Award Winner
In business since 2025
Free estimates
Emergency services offered
"Holston Homes knows their stuff! Colin helped me decide the best type of heat and air system, priced options, and got the job done quickly. He also installed a whole house humidifier, which is a game changer in winter when the heat is drying everything and causing static. Not with the humidifier!"
+32
Serving Blountville, TN and surrounding areas
Approved
In business since 2008
Free estimates
Credit card accepted
"Clean quickly work. When they saw a problem they address it clean up after their shelf both days"
Serving Blountville, TN and surrounding areas
Approved
In business since 2020
Free estimates
Credit card accepted
"Very efficient. Got the job done in no time!"
Serving Blountville, TN and surrounding areas
Approved
In business since 2022
Small jobs welcome
Credit card accepted
We take great pride our experience, expertise, quality and customer service that we provide to meet your needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.
Serving Blountville, TN and surrounding areas
Approved
In business since 2025
Free estimates
Small jobs welcome
"I asked them to check my dryer vent/hose hookup for connection. They cleaned the lines and connected the hose to the back of dryer. They also hung and readjusted the bi-fold doors to my laundry room. They both were very knowledgeable and professional in their work. I plan on having them to come back and do some more projects soon. I highly recommend this business without hesitation."
Serving Blountville, TN and surrounding areas
Approved
Responsible and on time
Serving Blountville, TN and surrounding areas
Approved
Free estimates
Emergency services offered
Credit card accepted
We are dedicated to provide quality and timely services. We have been in business for 14 years and have a total of 20+ years experience \n
Serving Blountville, TN and surrounding areas
Approved
Free estimates
Credit card accepted
Offers commercial services
Appalachian Airworks is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.
Serving Blountville, TN and surrounding areas
In business since 1988
Emergency services offered
Credit card accepted
"They replaced our air handler in a mobile home and put new freon in the system are old evaporator coil was plugged up and dirty and they saved us a ton of money they were on time and honest and did great work we will use you guys from now on thank you so much"
+5
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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