Posted on Lisa Russ2025-10-06Trustindex verifies that the original source of the review is Google. I would like to express my sincere gratitude to Matt for his exceptional service. He exceeded his responsibilities by adding a heat pump to my home purchase. Without prior acquaintance, he took the initiative to visit the property and assess the job requirements. On the same day, he contacted me to confirm that he could complete the task within a few hours, providing a reasonable price. I was delighted not only by the affordability but also by his ability to schedule the work for the following week. After searching for a month for someone to undertake this project, I encountered numerous companies unwilling to travel to my area. However, Matt not only accepted the job but also executed it with remarkable skill and efficiency, all while keeping costs manageable. I wholeheartedly recommend him and his company to anyone seeking honesty, quality workmanship, and a customer-first approach. Thank you, Matt, for your outstanding support "Lisa Russ"Posted on Brianne Hess2025-10-06Trustindex verifies that the original source of the review is Google. Matt and his team are amazing! Extremely professional and meticulous in their work. Matt is fast at addressing issues and accommodating when it comes to scheduling, even going as far as making weekend visits. His installation techniques and HVAC knowledge are something to be proud of! Best in LaFollette! Matt has faith in his units, and I have faith in Matt.Posted on Josiah Name2025-09-26Trustindex verifies that the original source of the review is Google. Scheduling was very simple and the person organizing dispatch was courteous. The technician was professional in appearance and behavior. Initially we had scheduled for an annual maintenance which was quoted at $199 but as it turned out we were having problems with our evaporator coil freezing so that was reduced to a diagnostic service call for only $80; that was my mistake for scheduling it as an annual checkup as opposed to a service call so I don't know that the tech was prepared to do cleaning and/or repairs. He did inspect the equipment however, after finding our return vents suboptimal are evaporator coil clogged and potentially a bad capacitor and dirty fan blades and our outdoor condenser was reportedly " very loud but in operable condition with no leaks in the system" he was adamant that we either spend several thousand dollars having them clean the air handler and replacing some maintenance Parts such as the capacitor, cleaning the fan, and replacing the evaporator coil which involves evacuating the coolant, cutting out the evaporator coil from the copper lines and resetting a new evaporator coil in its place. Alternatively we were offered the option to replace the outdoor condenser and the indoor Handler with some modifications being made to the ductwork to improve return air for approximately $9,000. I disassembled the air handler and cleaned the fan and had a technician from another local company come out and look at the system. they disassembled and cleaned the evaporator coil without having to cut the lines and then rechecked the pressures at the condenser and found the improvements in aiflow had raised pressures at the condenser and solved our freezing problem, he also took the time to evaluate our duct work and while not optimal for an older house the system setup is quite common and should be more than sufficient for the requirements of the air handler furthermore they offered to help us find appropriate filters for the returns to prevent the evaporator coil from getting clogged in the future and advised on appropriate filters to use at the air handler. they evaluated the condenser and found that it was no louder than normal and in good working order. How *long* it stays working... we'll see EDIT: after having a discussion with the owner Matt, I understand his point of view about wanting to remove the coil to clean it to prevent potential liability for damage to the lines that looked likely to occur. The options that he gave us a replacing components versus replacing the entire system were reasonable and allowed us to pick from within our interests and budget. It was not high pressure sales pitch or anything like that. but as always folks, if money is tight a second opinion on such a big project never hurts.Posted on Kristopher Herring2025-09-14Trustindex verifies that the original source of the review is Google. These guys are professional, and truly do everything to provide the best service. Very knowledgeable and not afraid to spread that knowledge with you. Matt is an excellent guy and I look forward to having more work done soon!Posted on Pamela Olivio2025-09-10Trustindex verifies that the original source of the review is Google. Very professional and works very good and cleans up. Would recommend them very highly.Posted on Eric Eyink2025-09-02Trustindex verifies that the original source of the review is Google. Thermostat Heating and Cooling were awesome to work with. Did exactly what they said they were going to do when they said they were going to do it. Highly recommend them for any HVAC needs.Posted on Sydney Anne2025-08-26Trustindex verifies that the original source of the review is Google. A big thank you to Matt and his crew! They were a pleasure to work with -- friendly, professional, informative, and efficient. Great customer service, work was done well and quickly, and all at a reasonable price.Posted on Lloyd Hicks2025-08-20Trustindex verifies that the original source of the review is Google. Fast and friendly service,diagnosed the problem in 10 minutes.Same day service tooPosted on Bob Schloemer2025-08-17Trustindex verifies that the original source of the review is Google. Excellent service from TH&C! Our A/C wasn't working when we arrived at Norris Lake and had guests for the weekend. Matt took the time on a Saturday to get our A/C working. Highly recommend.
Several factors affect what you’ll pay for air conditioning system installation across northeast Tennessee. The size and capacity of the system ranks as the biggest driver—larger homes need bigger units, and bigger units cost more. A 2-ton system typically costs less than a 5-ton unit for both equipment and installation.
Efficiency ratings matter too. Higher SEER-rated systems cost more upfront but save money on monthly energy bills over time. For the typical Campbell County TN home, a 14-16 SEER system strikes a good balance between purchase price and long-term savings. If you’re considering alternatives, a window AC installation serves smaller spaces at a lower price point, while ductless systems fall between traditional central AC and window units in cost.
Additional cost factors include whether your home needs new ductwork, if electrical upgrades are necessary, and which brands you prefer. ThermoSTAT Heating & Cooling provides detailed written estimates before any work starts so you know exactly what to expect. We never surprise homeowners with hidden fees on installation day.
We diagnose and fix cooling issues quickly, so you stay comfortable without long wait times.
Every system we install or service is chosen to fit your home’s size and cooling needs.
We’re proud to serve northeast Tennessee with dependable service and long-term customer relationships.
We’ve built our service approach around what homeowners actually need: clear communication, fair pricing, and quality work that holds up over time. Every job follows the same trusted steps from start to finish.
We present clear options and an up-front price so you can make the right call with full confidence — no pressure and no surprises.
Our certified technicians install your system to manufacturer specification and verify full performance before we leave the job site.
We check in after the install to confirm everything is running smoothly and answer any follow-up questions you may have.
From routine maintenance to emergency repairs and full system installations, we offer a complete range of heating and cooling services. Click any service below to learn more.
Northeast Tennessee’s diverse climate demands reliable heating solutions that can handle everything from mild autumn evenings to harsh winter storms rolling through the Appalachian Mountains. Our comprehensive heating services ensure your family stays comfortable year-round, whether you’re dealing with the region’s unpredictable weather patterns or planning for energy-efficient home improvements. From traditional gas furnace installation to modern heat pump installation systems, we provide tailored solutions that work efficiently in the mountainous terrain and varying elevations throughout the area. Our certified technicians understand the unique challenges posed by the region’s humidity fluctuations and temperature swings, ensuring your heating system operates at peak performance. We also specialize in high efficiency furnace installation options that help reduce energy costs during those long winter months when heating bills can skyrocket. Whether you need emergency repairs during an unexpected cold snap or want to upgrade to a more sustainable heating solution, our team provides prompt, professional service backed by extensive knowledge of local building codes and manufacturer warranties. Trust us to keep your home warm and your energy bills manageable throughout northeast Tennessee’s changing seasons.
Managing indoor comfort in northeast Tennessee requires expertise in both heating and cooling systems, as the region experiences significant seasonal temperature variations and humidity changes throughout the year. Our comprehensive HVAC solutions address the unique challenges posed by the area’s mountainous geography and unpredictable weather patterns. We understand that homes in this region need systems capable of efficient operation whether dealing with humid summers or cold mountain winters. Our services include advanced smart thermostat installation that optimizes energy usage based on local climate conditions, and heat pump repair services essential for the many homes utilizing this versatile technology. Indoor air quality is particularly important in areas where homes are sealed tight during extreme weather, which is why we also offer air scrubber installation and UV air purifier installation services. Regular HVAC maintenance is crucial in this climate to prevent system failures during peak usage periods. Our certified technicians provide comprehensive system evaluations, ensuring your equipment operates efficiently while maintaining optimal indoor air quality throughout the region’s diverse weather conditions and seasonal transitions.
When your furnace fails during northeast Tennessee’s unpredictable winter weather, prompt professional repair becomes essential for your family’s safety and comfort. The region’s mountainous terrain and elevation changes create unique challenges for heating systems, making specialized repair expertise crucial for reliable operation. Our emergency response team understands that furnace breakdowns don’t wait for convenient times, especially when cold fronts move through the Appalachian region. Common issues we address include furnace heat exchanger repair and furnace blower motor repair, both critical components that can fail due to the demanding operating conditions in this climate. We also provide specialized gas furnace repair services for the many homes relying on natural gas heating throughout the area. Our technicians carry extensive diagnostic equipment and common replacement parts, enabling same-day repairs for most issues. From furnace not heating repair to complex system malfunctions, we provide comprehensive solutions that restore comfort quickly and safely. Trust our certified professionals to diagnose problems accurately and implement lasting repairs that withstand the demanding conditions of northeast Tennessee’s variable climate patterns.
Northeast Tennessee’s hot, humid summers put significant strain on air conditioning systems, making reliable repair services essential for maintaining comfortable indoor environments. The region’s elevation changes and varying humidity levels create unique operational challenges that require specialized diagnostic expertise and repair techniques. Our certified technicians understand how the area’s climate affects different AC components, from compressors working overtime during heat waves to condensers dealing with mountain humidity. We provide comprehensive solutions including AC compressor repair and AC leak repair services that address common issues caused by the region’s demanding summer conditions. When systems fail unexpectedly, our emergency AC repair team responds quickly to restore cooling before temperatures become unbearable. We also handle AC not cooling repair situations that often occur when systems struggle with the area’s high humidity and temperature fluctuations. Our repair approach focuses on identifying root causes rather than temporary fixes, ensuring your system operates efficiently throughout the demanding summer months. With extensive experience in the region’s unique climate challenges, we provide lasting solutions that keep your home comfortable and your energy costs manageable.
Get answers to the most common questions about our HVAC services. Still have questions? Reach out to our team — we are happy to help.
Reliable service, honest pricing, and certified technicians — here’s what sets our team apart and why customers come back to us year after year.
A properly sized unit cools every room evenly, avoiding hot spots and cold drafts throughout your home.
When your AC matches your home’s square footage and insulation, it doesn’t need to overwork, helping you save on energy costs.
Oversized systems cycle on and off too often, while undersized ones run constantly. Both lead to faster wear and tear.
Correctly sized units remove humidity effectively, keeping your indoor air more comfortable during northeast Tennessee’s humid summers.
Proper sizing means less strain on the compressor and other key components, minimizing breakdowns and repair costs.
Have a question or need to schedule service? Fill out the form below and a member of our team will reach out to you with next steps.