High efficiency furnace installation in northeast Tennessee gives homeowners a way to cut heating bills significantly while enjoying more consistent warmth throughout their homes. ThermoSTAT Heating & Cooling installs these advanced systems across the region, helping families reduce monthly energy costs and enjoy a more comfortable living environment during the cold Tennessee winters. These units achieve efficiency ratings of 90% or higher, meaning they convert nearly all the fuel they use into usable heat for your home.
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 for high efficiency furnace installation in northeast Tennessee begins with a thorough assessment of your home heating needs. We evaluate your home’s square footage, insulation levels, ductwork condition, and existing infrastructure to recommend the right-sized high efficiency furnace for your specific situation. Proper sizing matters because an oversized unit cycles on and off too frequently, wasting energy, while an undersized unit struggles to keep your home comfortable.
We then remove your old furnace carefully, disposing of it responsibly while protecting your home from dust and debris. Our technicians install the new high efficiency unit according to manufacturer specifications and local building codes. This includes proper gas line connections, venting for the exhaust gases, and electrical hookups that ensure safe and reliable operation. We also install a new thermostat if needed, and many homeowners choose to upgrade to a programmable or smart thermostat with their new high efficiency furnace installation. For homeowners comparing different heating options, heat pump installation offers another energy-efficient alternative worth considering, particularly in milder climates.
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 encompass everything from traditional gas furnace installation to modern heat pump systems designed for the region’s unique temperature variations. Whether you’re dealing with an older home in the foothills or a new construction project, we understand how elevation changes and local weather patterns affect heating efficiency across the Tri-Cities area and surrounding communities. Our certified technicians specialize in sizing systems appropriately for homes that may experience significant temperature swings between valleys and ridgelines. We also offer ductless heating solutions perfect for additions or areas where traditional ductwork isn’t feasible. From emergency repairs during unexpected cold snaps to planned system replacements before winter arrives, our heating expertise ensures your family stays comfortable year-round. We work with all major brands and fuel types, helping you choose the most cost-effective and efficient heating solution for your specific location and home design.
Complete HVAC solutions for northeast Tennessee require expertise in both heating and cooling systems that can adapt to the region’s four distinct seasons and varying elevations. Our full-service approach covers everything from initial system design to ongoing maintenance, ensuring optimal performance whether you’re located in a mountain valley or on higher terrain. We specialize in advanced control systems that help manage energy costs while maintaining comfort through the region’s temperature extremes. Our comprehensive services include preventive maintenance programs designed to extend equipment life and prevent costly breakdowns during peak seasons. Understanding that many homes in the area were built before modern efficiency standards, we excel at retrofitting older properties with updated systems that work within existing constraints. From heat pump services ideal for moderate climates to complete system overhauls, we provide solutions tailored to local conditions. Our technicians are trained on the latest energy-efficient technologies and can recommend indoor air quality improvements that address common regional concerns like pollen and humidity. We pride ourselves on transparent pricing and reliable service that keeps your HVAC investment performing at its best throughout every season.
When your furnace fails during a cold northeast Tennessee winter, quick and reliable repair service becomes essential for your family’s safety and comfort. Our experienced repair technicians understand the urgency of heating emergencies, especially when mountain weather can bring unexpected temperature drops and extended cold periods. We maintain extensive parts inventory for all major furnace brands and models commonly found throughout the region, from older units in established neighborhoods to newer high-efficiency systems. Common issues we address include igniter problems that prevent startup, blower motor failures that reduce airflow, and heat exchanger concerns that affect both efficiency and safety. Our diagnostic approach identifies root causes rather than just symptoms, preventing recurring problems that could leave you without heat when you need it most. We offer 24/7 emergency service because heating failures don’t wait for convenient times. Whether you’re dealing with a gas, electric, or oil furnace, our certified technicians have the expertise to restore reliable operation quickly and safely, ensuring your heating system performs efficiently throughout the demanding winter months ahead.
Northeast Tennessee’s humid summers and unpredictable weather patterns make reliable air conditioning repair services crucial for maintaining indoor comfort and air quality. Our repair specialists understand how the region’s high humidity levels and temperature fluctuations can stress AC systems, leading to common issues like compressor failures and refrigerant leaks. We respond quickly to cooling emergencies because we know how uncomfortable and potentially dangerous excessive heat can become, especially for vulnerable family members. Our comprehensive diagnostic approach identifies problems ranging from inadequate cooling performance to complete system shutdowns, ensuring we address underlying causes rather than just symptoms. Mountain communities often face unique challenges with power fluctuations and dust accumulation that can affect AC performance, which is why our technicians are trained to handle region-specific issues. We stock parts for all major brands and maintain emergency service availability during peak cooling season. From simple fixes like refrigerant recharging to complex electrical repairs, we restore your cooling system’s reliability efficiently, helping you avoid the discomfort and expense of extended downtime during hot summer weather.
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.