Serving La Follette, TN and surrounding areas
Approved
In business since 2007
Free estimates
Emergency services offered
"Water heater needed replacing , they were fast and thorough and cleaned up like they were never there!"
+11
Serving La Follette, TN and surrounding areas
Approved
In business since 2025
Free estimates
Offers commercial services
"I was extremely impressed with Jacob. His knowledge and professionalism stood out from the moment he arrived. He took the time to explain the installation process, answered all of my questions, and completed the job with great attention to detail. He and his team were courteous, efficient, and left the work area clean when they finished. It?s clear they take pride in their work, and I highly recommend the owner Jacob and his team Three Rivers Mechanical to anyone looking for quality HVAC service."
+18
Serving La Follette, TN and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"I hired Sanchez Heating and Cooling a year ago. I am 110% satisfied with my heat and my air! Everything works perfectly and they also redid the duct work! It looks and works great. I had a question and called Johnny and he was here to fix it, immediately. They are quick, neat and professional. The price was great I can't recommend them enough."
+2
Serving La Follette, TN and surrounding areas
Approved (Corporate)
In business since 1985
Free estimates
Emergency services offered
With 40 years of experience serving Knoxville and the surrounding areas, Quality Plumbing, Heating, Cooling & Electrical provides expert HVAC solutions tailored to your needs. Whether you need heating, cooling, or system maintenance, our skilled technicians ensure your home stays comfortable year-round. We take a customer-focused approach, delivering professional, reliable service with every job.
Serving La Follette, TN and surrounding areas
Approved
In business since 2009
Warranties offered
Small jobs welcome
"Everything went extremely well! The representative, Mr. Keith Hall, was excellent. He made my family and I feel very comfortable during this transition to Knoxville. I not only recommend Mr. Handyman of West Knoxville, but him as well. Absolutely loved the results as well."
+55
Serving La Follette, TN and surrounding areas
Approved
We are Carly & Seven and have been in the property management and maintenance business for 15 years. HVAC certified. We are licensed and insured. Our main service is pressure washing. We originally started the business to serve churches and commercial accounts but we like spreading the word and helping all people. We have also done VCT floor stripping and waxing and enjoy doing that as well! We look forward to serving you! And taking care of your needs!
Serving La Follette, TN and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
We show up on time and get the job done right the first time
Serving La Follette, TN and surrounding areas
Approved
In business since 2023
Free estimates
Emergency services offered
"Great work. Finished on schedule. I definitely recommend this company for any project you have."
+4
Serving La Follette, TN and surrounding areas
Approved (Corporate)
In business since 1990
Free estimates
Emergency services offered
Hiller Plumbing, Heating, Cooling, & Electrical, established in 1990, stands for quality and reliability. With our 'Happy You'll Be or the Service is Free' guarantee, we are dedicated to customer satisfaction in Knoxville and the surrounding communities. Our plumbers provide emergency repairs, sewer line service, and expert installation or repair of water heaters. Our HVAC specialists ensure your comfort with preventative maintenance, air conditioning and furnace repairs, for year-round comfort. Our licensed and insured electricians offer prompt emergency response, custom upgrades, and safe, thorough electrical fixes for both residential and commercial properties. Hiller is your trusted provider for all your home service needs.
+10
Serving La Follette, TN and surrounding areas
In business since 1988
Emergency services offered
Credit card accepted
"my air conditioning went out at my house and these guys were really fast help me out with a few things that I needed. My air conditioning system up and going and we are now Cooling and don't have any problems if you guys need any company that is honest reliable fast in time all these guys they will take care of you"
+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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