Serving Johnson City, TN and surrounding areas
Approved
In business since 1997
Free estimates
Small jobs welcome
"They installed our system 16 yrs ago. Great bunch of guys and the office ppl are wonderful"

Serving Johnson City, TN and surrounding areas
Approved
In business since 1997
Free estimates
Small jobs welcome
"They installed our system 16 yrs ago. Great bunch of guys and the office ppl are wonderful"

Serving Johnson City, TN and surrounding areas
Approved
Free estimates
Credit card accepted
Offers commercial services
Mountain Comfort Heating & Air is a reliable, honest, and trustworthy heating and air company proudly serving the Tri-Cities area of East Tennessee. We are dedicated to providing top-quality HVAC services with a customer-first approach, always going the extra mile to make sure your home or business stays comfortable in every season. Whether it's installation, repair, or maintenance, you can count on our team for dependable service, professional workmanship, and attention to detail. We stride to bring peak performance, and year-round comfort to every customer we encounter.\n





+3

Serving Johnson City, TN and surrounding areas
Approved
In business since 2008
Free estimates
Credit card accepted
"Great people and do great work at a fair price. Thanks Matt and crew on installing our New, package unit."

Serving Johnson City, TN and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

Serving Johnson City, TN and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
At Phil's Heating and Air, we're excited to earn your business. Locally owned and operated, we are known in the area for our prompt service and attention to detail. Customer satisfaction is always our primary concern, so be sure to give us a call today!

Serving Johnson City, TN and surrounding areas
In business since 2010
Emergency services offered
Credit card accepted
"Jim did a great job. He quickly assessed the problem and then took our unit with him to work on it more. When he got back to us, the fix would have cost more than it was worth. He gave us options for a new or refurbished PC. We felt the refurbished was a good deal and chose that. He came back and set that up and we are very happy with it. He then took a look at my laptop and again took it along. He tuned it up and installed a speed upgrade we wanted. Of course, we paid extra for the new unit and upgrades, but we thought the price was very fair. Jim seemed very knowledgeable and responsive. We will definitely call him again if we need any computer services."



Serving Johnson City, TN and surrounding areas
In business since 2020
Free estimates
Warranties offered
"They were professionals, were prompt, and installed a new central air conditioning system yesterday. It seems to be working fine."





+11

Serving Johnson City, TN and surrounding areas
In business since 2010
Free estimates
Emergency services offered
A former Aerospace Engineer, and Production Engineer, W.R.Granger specializes in all types of home energy systems. Bringing you the reliability and expertise earned through 20 years of experience manufacturing heat pumps, ventilation systems, and components for US Navy ships, submarines, and aircraft. Serving all of the Tri-Cities area for over 10 years.





+10

Serving Johnson City, TN and surrounding areas
In business since 2010
Credit card accepted
"Overall, we were very satisfied with the knowledge and quality of work that Covenant LLC provided. We had Covenant LLC install a radon mitigation system for our basement. Initially my husband and I met with David for the estimate and consultation. David spent the time to explain how radon can get into the basement, what the system would look like, and how he was going to make sure it was working. After meeting with David at Covenant, we met with a competitor who were definitely not as knowledgeable, were not going to seal any of the cracks or holes in the foundation or even follow industry standard by venting through the roof of the house. The day of install the crew was personable and professional and if they had any questions, they asked. The 3" pipe that Covenant had to install to run through a closet and into the attic. In order to do this, they had to drill through the porcelain title floors and run through 3 shelves. They spent extra time to jig-saw cut the shelves around the pipes and they took special care not to crack any of the porcelain tiles and when finished it looked like it was built with the house. After completion, Covenant came back and tested the radon levels which were reduced to below their guarantee, which itself is orders of magnitude below the EPA limit. We were probably not the easiest clients to work with as we had Covenant move the roof penetration several times until the noise was completely unnoticeable. David was always polite and professional and he wouldn't be satisfied with the job until we were satisfied. We highly recommend Covenant Air to anyone who is considering these services."



Serving Johnson City, TN and surrounding areas
In business since 2015
Free estimates
Emergency services offered
"GREAT! had no idea what i was doing and the task at hand was way out of my realm. Casey went and explained what i needed, and why i needed it. Picked up the new part, gave him a call and he installed shortly after that. He was highly recommend to me and will most definitely will be giving him a call again! Great service, fast and honest."





+30
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