Replacing a heating system involves more than just swapping out the old unit for a new one. Our process starts with a home evaluation. We check the existing ductwork, measure your home’s square footage, and look at insulation levels. This helps us recommend the right size and type of system for your specific needs.
Our technicians remove the old heating system and dispose of it properly. We install the new unit, connect it to existing ductwork where possible, and make sure all connections are secure. We then test the system to verify it heats your home evenly and runs efficiently. The process typically takes one to two days depending on whether modifications to ductwork are needed.
For homeowners comparing options, a furnace replacement works well if you have gas service and want powerful, consistent heat. If you are considering moving away from traditional forced-air systems entirely, a heat pump installation provides both heating and cooling in one system, which many homeowners find convenient for their Campbell County homes.
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.
The cost of heating system replacement in LaFollette, LaFollette, LaFollette, Jacksboro, Caryville, and Campbell County TN, Caryville, and Campbell County TN, Caryville, and Campbell County TN varies based on several factors. System type matters most — a standard gas furnace costs less upfront than a high-efficiency model, but high-efficiency units pay for themselves over time through lower monthly energy bills. The size of the unit needed for your home also affects price, as does whether you need new ductwork installed or modified.
Labor costs depend on the complexity of the installation. Simple like-for-like swaps take less time than rerouting ductwork or installing new gas lines. The brand and efficiency rating you choose also influence the final cost. Premium units with the highest efficiency ratings cost more initially but can significantly reduce your heating bills.
Many homeowners in our area are replacing systems that are 15 to 25 years old. These older units often cost more to repair than they are worth, and they use significantly more energy than modern equipment. If you are weighing repair versus replacement, consider that a new system typically pays for itself within 7 to 12 years through energy savings alone.
Some homeowners ask about heat pump installation as a way to get both heating and cooling in one unit. While the upfront cost may be higher, the long-term savings on your energy bills and the convenience of a dual system often make this a smart choice. We help you compare these options during our in-home estimate so you can make the best decision for your budget.
If your home does not have existing ductwork and you want to avoid installing it, a boiler installation with radiators or radiant floor heating may be an option worth discussing. This approach heats your home without forced air, and many homeowners find it provides more consistent, comfortable warmth throughout the home.
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 LaFollette, Jacksboro, Caryville, and Campbell County TN with dependable service and long-term customer relationships.
How long does a heating system replacement take?
Most heating system replacements are completed in one to two days. The first day covers removal of the old system and installation of the new unit. If we need to modify ductwork or install new gas lines, this may extend into a second day. We provide a clear timeline during your in-home estimate.
Should I repair or replace my heating system?
If your system is over 15 years old and the repair costs are more than half of what a new system would cost, replacement is usually the better choice. Frequent breakdowns, rising energy bills, and uneven heating are all signs that replacement makes more financial sense than pouring more money into an aging system.
What size heating system does my home need?
The correct size depends on your home’s square footage, ceiling height, insulation levels, and number of windows. Our technicians perform a detailed load calculation to determine the exact heating capacity your home needs. This ensures you get a system that heats efficiently without being oversized.
Can I install a different type of heating system than what I currently have?
Yes, in many cases. If you currently have a gas furnace and want to switch to a heat pump, or if you want to add a boiler-based radiant system, we can help you explore those options. Switching systems may require additional work such as installing new ductwork or running new gas lines, so we discuss all implications during your estimate.
What brands of heating systems do you install?
We install heating systems from trusted manufacturers known for reliability and efficiency. During your estimate, we review the brands we carry and help you select the best option for your home’s needs and your budget.
ThermoSTAT Heating & Cooling is your local team for heating system replacement across LaFollette, LaFollette, LaFollette, Jacksboro, Caryville, and Campbell County TN, Caryville, and Campbell County TN, Caryville, and Campbell County TN. Call us at (423) 907-2799 to schedule your free in-home estimate.
Our team will assess your home, explain your options, and provide a clear quote with no hidden costs. We install heating systems that fit your home’s needs and your budget, and we back our work with guarantees you can count on. Reach out today — your new heating system is closer than you think.
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 LaFollette, Jacksboro, Caryville, and Campbell County TN’s humid summers.
Proper sizing means less strain on the compressor and other key components, minimizing breakdowns and repair costs.