10/11/22 $6,500 was paid in advance for a completely new HVAC system. My personal opinion and observation is that this company does extremely poor work, and the owners will not correct their shoddy lack of craftsmanship. The new HVAC system heating panels are scratched. The condenser coils are damaged. A 21-year-old PVC drain line was not replaced. A 21-year-old outdoor electric panel box was not replaced (potential safety/fire hazard concern). The heater plenum was not properly sealed and leaks air when the fan is on. Tubing insulation was torn by hand, and not cut to fit the copper HVAC lines. Rubber grommets on the furnace were not secured. The technicians ran A/C lines from the condenser into the home and left an opening, a hole in the outside exterior wall. Seventeen photos were provided to the Better Business Bureau and the State of Tennessee Division of Consumer Affairs. read more

In my personal experience ; Now it is almost 4 years since this company mis-diagnoses my ac issue , when they demanded that I pay them over $ 5,000.00 for a complete new unit and let it be known that the unit this company stressed was bad is still working just fine . Please get a second opinion before using this company , because that second diagnosis could be the correct one and save you oooh lets say $ 4,800.00 + like it did for me read more

I needed a toilet replaced and looked under the Better Business Bureau to find a local company. I called Renner HVAC in Morristown and they were prompt about sending someone out the next day who was Ian Haralson, Service Technician. He was professional, thorough, cleaned up after himself, and wore a mask and bootie covers to keep my house safe and clean (I also wore a mask in my house to protect him - in this age of Covid19 you have to protect each other - that is not only the sensible and safe thing to do, but also it is a courtesy to your fellow citizens). I want to say the employees I spoke to on the phone were all professional and a special shout-out to Tanya, appointment scheduler. And mostly, thank you to Ian...! read more

I have had a lot of problems with the unit I bought in 2015 from this company and had no trouble with them up to this point, but that changed today. A tech came awhile back said it had a bad pressure switch, the switch was under warranty. They ordered the switch and that one was bad also! The tech messed the wiring up on the unit and they had 3 people work on it to get it back right then they got another switch. Well the tech came back today to put the switch on and done the same thing with the gauges and gas that he done before when the switch was bad, then they hit me with a $598.00 labor bill, also when he left the first time the unit was not working, that was when the 3 had to come and work on the wiring and said the new switch was bad that they would have to come back and put another switch on, that was today. This was a ridiculous amount for their screw up in my opinion!!!! I spoke with the manager on the phone but no break for their mess up. read more

Tyler was a great guy. He came on time. Provided great customer service. He was knowledgeable about the unit and did a great job. Totally recommend this company. read more

i am still awaiting the company owner to refund my service fee for incorrect and totally wrong diagnostics and over charging !! i am not holding my breath due to his unprofessional attitude read more