When your furnace stops working efficiently or breaks down completely, furnace replacement is the long-term solution that gives Campbell County homeowners peace of mind. ThermoSTAT Heating & Cooling handles furnace replacement across northeast Tennessee, so you stay warm through every winter night. A new furnace installation eliminates repeated repair calls, lowers your monthly heating bills, and keeps your home comfortable when temperatures drop.
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 process starts with a thorough assessment of your current heating system, your home’s size, insulation levels, and your family’s comfort preferences. We measure existing ductwork, check ventilation routes, and help you select the right furnace size and efficiency rating for your Campbell County home.
Once you approve the selection, our licensed technicians remove the old unit, disconnect gas or electrical lines safely, and dispose of the old furnace according to local regulations. We install the new unit, connect all fuel and electrical systems, test airflow through every vent, and calibrate the thermostat for optimal performance. The entire furnace replacement project typically completes in a single day, minimizing disruption to your household.
For homes without existing ductwork, some Campbell County homeowners explore mini split installation as an alternative heating solution that avoids major ductwork construction. Others upgrading from older electric baseboard systems find that heat pump installation offers better efficiency and year-round comfort.
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 mountainous terrain and fluctuating seasonal temperatures demand reliable heating solutions that can handle everything from mild autumn evenings to harsh winter storms. Our comprehensive heating services encompass installation, maintenance, and repair of all heating system types, ensuring your home stays comfortable year-round. Whether you need gas furnace installation for a new construction project or heat pump installation for energy-efficient heating and cooling, our certified technicians bring decades of experience to every job.
The unique climate challenges of the Appalachian region require heating systems that can efficiently handle temperature swings and maintain consistent comfort. We specialize in modern solutions like high efficiency furnace installation that reduce energy costs while providing superior performance. Our team understands local building codes and utility requirements, ensuring all installations meet regional standards. From traditional gas and electric systems to innovative radiant heat installation, we provide customized heating solutions that match your home’s specific needs and your family’s comfort preferences, backed by reliable service and competitive pricing.
Complete HVAC solutions for northeast Tennessee homes require expertise in both heating and cooling systems that can adapt to the region’s diverse weather patterns. Our full-service HVAC approach addresses every aspect of your home’s climate control, from initial system design to ongoing maintenance and emergency repairs. We understand that the mountainous geography and varying elevations throughout the area create unique challenges for maintaining consistent indoor comfort.
Our comprehensive services include smart thermostat installation for precise temperature control and energy savings, as well as heat pump repair to keep your dual-purpose systems running efficiently. Indoor air quality is equally important, which is why we offer air scrubber installation to remove pollutants and allergens common in our wooded, pollen-heavy environment. Regular HVAC maintenance ensures your systems operate at peak efficiency, reducing energy costs and extending equipment lifespan. Our certified technicians stay current with the latest HVAC technologies and local regulations, providing reliable solutions that keep your family comfortable while maximizing energy efficiency throughout Tennessee’s changing seasons.
When your furnace fails during a cold Tennessee mountain night, you need immediate, professional repair services from technicians who understand the urgency of the situation. Our furnace repair specialists diagnose and resolve heating issues quickly, from common problems like faulty thermostats to complex mechanical failures that require specialized expertise. We service all furnace types and brands, ensuring your family’s comfort is restored as efficiently as possible.
Common furnace issues in our region include problems caused by power fluctuations during storms and component wear from heavy seasonal use. Our team excels at gas furnace repair and electric furnace repair, addressing everything from ignition problems to blower motor failures. We also provide emergency furnace repair services 24/7, because we know heating emergencies don’t wait for convenient hours. Our diagnostic approach identifies root causes rather than just symptoms, preventing recurring problems and extending your system’s lifespan. Whether you’re dealing with furnace not heating repair or strange noises from your unit, our experienced technicians arrive equipped with quality parts and the knowledge to restore your heating system’s reliable operation.
Tennessee summers can be unforgiving, with high humidity and temperatures that strain air conditioning systems to their limits. Our emergency-focused repair services ensure your cooling system receives immediate attention when breakdowns occur during peak cooling season. We understand that AC failures during hot, humid weather create more than discomfort—they can pose health risks, especially for elderly family members and young children.
Our rapid response team specializes in diagnosing and repairing all types of cooling system failures, from refrigerant leaks to compressor problems. We provide expert AC compressor repair and AC leak repair services that restore your system’s cooling capacity quickly. Common issues we address include AC not cooling repair and electrical problems that prevent units from operating properly. Our technicians carry extensive parts inventory on their service vehicles, enabling same-day repairs for most common problems. We also offer emergency AC repair services around the clock, because we know that cooling emergencies can’t wait. Our goal is to restore your home’s comfort quickly while providing lasting solutions that prevent future breakdowns during the demanding summer months ahead.
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.