AC leak repair across northeast Tennessee is a call away with ThermoSTAT Heating & Cooling. Our team finds refrigerant leaks fast, fixes them right, and gets your cooling back. Whether you have a small leak or a bigger problem, we give you an honest estimate before we start work.
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.
Our technicians start by checking system pressure and using leak detection tools to find where refrigerant is escaping. Common leak spots include the evaporator coil, fitting connections, and the outdoor condenser. Once we locate the leak, we clean the area, make the repair, and recharge the system with the correct refrigerant type. If the leak is in a major component, we walk you through your options so you can decide what makes sense for your home and budget. Most repairs are done the same day. If your system just needs a top-off after the leak is sealed, our AC refrigerant recharge service handles that. For broader cooling issues, our AC repair page covers other problems our team addresses.
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 challenging mountain climate demands reliable heating solutions that can handle everything from sudden temperature drops in the Smokies to extended cold snaps throughout the region. Our comprehensive heating contractor services ensure your home stays warm and comfortable regardless of what Mother Nature brings to the Tri-Cities area and surrounding communities.
We specialize in complete heating system design, installation, and maintenance for residential and commercial properties across the region. Whether you’re building a new home in the foothills or upgrading an existing system in an older mountain cabin, our certified technicians provide expert gas furnace installation and heat pump installation services tailored to your specific needs and local building requirements.
Our heating solutions are designed to maximize efficiency while minimizing operating costs, crucial considerations given the region’s variable energy prices and environmental consciousness. From traditional forced-air systems to modern mini split installation for zoned comfort, we offer cutting-edge technology that adapts to your lifestyle and budget. We also provide specialized services like radiant heat installation for ultimate comfort in mountain homes where traditional heating methods may fall short. Trust our local expertise to keep your family warm through every East Tennessee winter.
When your home’s comfort systems need comprehensive attention, our full-service HVAC contractor expertise covers every aspect of heating, ventilation, and air conditioning for Northeast Tennessee properties. From the rolling hills around Johnson City to the mountain communities near the Virginia border, we understand how regional weather patterns and elevation changes affect your indoor comfort needs year-round.
Our certified HVAC professionals provide complete system analysis, ensuring optimal performance and energy efficiency for your specific property type and local conditions. We excel in complex installations, system upgrades, and precision maintenance that extends equipment life while reducing utility costs. Our services include advanced smart thermostat installation for precise climate control and heat pump repair to maintain efficient heating and cooling operations.
What sets us apart is our commitment to indoor air quality improvements through air scrubber installation and UV air purifier installation, essential services for homes in areas with seasonal pollen and mountain air quality concerns. We also provide comprehensive HVAC maintenance programs designed specifically for the unique demands of Appalachian climate conditions, ensuring your investment in comfort technology delivers reliable performance for years to come.
Furnace breakdowns never happen at convenient times, especially during Northeast Tennessee’s unpredictable winter weather when mountain temperatures can plummet overnight. Our specialized furnace repair service team understands the urgency of heating system failures and provides rapid, reliable solutions for homeowners throughout the region’s diverse communities and varying elevations.
Our experienced technicians diagnose and repair all furnace types, from older units common in historic mountain homes to modern high-efficiency systems. We handle everything from routine maintenance issues to complex mechanical failures, including furnace heat exchanger repair and furnace blower motor repair that require specialized expertise and genuine replacement parts.
Common regional challenges like power fluctuations from mountain weather and debris from surrounding forests can cause specific furnace problems we’re uniquely qualified to address. Our comprehensive repair services include gas furnace repair for natural gas systems and electric furnace repair for homes using electric heating solutions. When you’re facing emergency furnace repair situations, our local knowledge and extensive parts inventory mean faster restoration of your home’s warmth and comfort, getting your family back to normal as quickly as possible.
Northeast Tennessee’s humid summers and unpredictable weather patterns put significant demands on air conditioning systems, making professional repair services essential for maintaining comfortable indoor environments. Our air conditioning repair service specialists understand the unique challenges faced by cooling systems in this region, from high humidity levels in valley areas to temperature variations caused by elevation changes throughout the Appalachian foothills.
We provide comprehensive diagnostic and repair services for all air conditioning system types, addressing common regional issues like refrigerant problems caused by extreme temperature swings and electrical component failures from frequent summer storms. Our skilled technicians excel in complex repairs including AC compressor repair and AC blower motor repair, ensuring your system operates efficiently during peak cooling season.
When cooling emergencies strike during sweltering summer days, our emergency AC repair service provides rapid response throughout the service area. We also specialize in preventive solutions like AC refrigerant recharge services that help maintain optimal performance and prevent costly breakdowns. Our local expertise means we understand exactly how regional climate conditions affect your air conditioning system’s performance, allowing us to provide targeted repairs that restore comfort quickly and reliably.
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.