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Since 1972 homeowners have chosen Reliable for fast, efficient and friendly AC Repair & Service. We have the largest residential heating and AC service team in the Chattanooga area with fully-stocked vans so you don't have to wait for repairs. Our technicians are experienced, knowledgeable and drug-free. We only hire the best of the best HVAC technicians!

Our Customer First commitment is pervasive throughout the entire Company. Customer Satisfaction has been replaced with Customer Delight. From the cleanliness of our vehicles to the politeness of our office staff, service and sales personnel, we want every interaction to be a pleasant and memorable one.
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Reliable Heating & Air Conditioning Co. Inc. was founded in June of 1971. From its original staff of three, Reliable has grown to become Chattanooga's largest Residential HVAC Company, a respected Commercial service provider and winner of the "Small Business of the Year" for the State of Tennessee.
For over two decades, Reliable Heating and Air Conditioning has been proud to be one of the area's single-source Emergency Standby Home Generator contractors. From Factory Authorized installation and wiring, to gas piping, to our legendary service and maintenance programs, Reliable Heating and Air Conditioning is your one-stop shop Home Generator provider.
Reliable Heating and Air Conditioning goes beyond selling, servicing, repairing and maintaining heating and air conditioning systems. We also make indoor air quality a priority. Reliable Heating and Air Conditioning has long been considered the leader in the tri-state area for handling all residential Indoor Air Quality needs.
Install your Ductless Air Unit in the ceiling or below the floor and totally out of sight. Heat pump systems feature auto mode, which automatically switches between cooling and heating in response to the changing load in the space. Our ductless systems are nearly silent; their fans deliver air quietly and continuously with only a gentle whoosh for constant circulation and filtration.
Reviews (26)
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Paul Stanley
Jun 16, 2022
Changed my review after Chris from Reliable showed up yesterday and corrected my unit by adding refrigerant. I'm convinced they will honor their commitment to warranty repair in a timely manner. Thanks also to Google Reviews for giving consumers a little bit of power in the wild world of business. I'm self installing a window unit because the $6000 Maytag unit is anything but Reliable.

The tech replacing the coil last November in the six-month old heat pump admitted the new design with all crimp connections will never work like solder joints. Meanwhile the ASAP service call is 10 days away. Thanks, UN-Reliable.
Kirk B.
Jun 16, 2022
Reliable is my AC company - and they do an amazing job! The technician (Skylar?) came out to do a seasonal maintenance on my AC unti it. He was incredibly thorough and very friendly. These guys know what they are doing. There's a reason they are voted #1 in the Chattanooga area year after year! If you need AC or heating help, don't hesitate to contact Reliable Heating and Air!
Amber Scott
Jun 09, 2022
I continue to use Reliable for all my heating and air needs. This time, I needed coolant and a leak check, as well as a breaker repair. I find I can trust what they say and they always do everything they can to help with whatever the issue is. Service: A/C system repair
Kristy B.
Apr 11, 2022
After cutting ties with my other heating/air company. I decided to call reliable based on 50 years in business and positive reviews. I'm glad I did. The representative was courteous. Set up an appointment next day. They showed on time and quickly replaced a bad switch. Thank you Reliable! Service: A/C system repair
David Ramey
Mar 04, 2022
After calling another company and them not mentioning they don't use R-22 any longer and would use a different type I called Reliable. They still have and use the R-22 refrigerant that older units require. Called late morning and they were able to have someone on site within a few hours and completed the repair using the proper refrigerant. Would/will use again, and do recommend.
Joe Fusco
Feb 27, 2022
Reliable Heating and Air is certified to install and service Generac products. Not only did the Tech do a tremendous job on the periodic service and installation of the WiFi replacement module, he took the time to explain the test and inspection procedures- top notch!
Chris McGhee
Feb 23, 2022
Called about one of our heat pumps intermittently not engaging when heat was being called for and required a system reset to get it going again. Was setup with a same day appointment and Joe showed up in about an hour. He looked over the units and tested the electrical and discovered the 20A unit was on the 30A breaker, and the 30A unit was on the 20A breaker!

Once the breakers are swapped I am hopeful we won't have any more issues. But if it does act up again I will be setting up another appointment with them as the service was very fast, Joe was professional and walked me through the issue, and I was overall very happy with the whole experience. Thanks y'all!
Amber Mohr
Feb 23, 2022
I've used Reliable a few times now on different properties for HVAC install, and HVAC repair and they are always. Reliable. Sounds corny but I can honestly say they live up to their name. Their pricing is fair. Their techs are professional. I will continue to use them for my HVAC needs. Services: Heating system installation, A/C system maintenance
Beth Culkeen
Dec 23, 2021
We have been using them exclusively since 2020 except for one instance when we had to use another company through our home warranty. When the other company failed at their job, I called Reliable. They came right out, got the information to order the part and finished the job right away. We have an annual agreement with them and get our cleanings in a twice a year schedule. Office staff is friendly and helpful. Joe is an amazing technician. Very personable and knows his HVAC! I highly recommend this company.
Denise Whitaker
Dec 01, 2021
I have been having problems with my HVAC unit working intermittently and I was at lost knowing who to call. I called 3 companies, one advertised a very low cost service fee but i realized very quickly they wanted to sale a new unit. Second company was very nice but because it was intermittent, they could not find the problem. Third time is a charm when someone recommended me to call Reliable Heating and Air.

Upon arrival the service man Larry, went right to work finding the problem immediately. He needed to order a part, and with slow shipping, I was concerned. The next morning I got a call from the office stating upon my approval they could order the part and be out the next day. Larry came out the next day and got the unit fixed right away. When I went to pay, he said it didn't take as long as he once thought so there was an adjustment in price! Who does that? Reliable Heat does! I realize that my unit will have to be replace in a few years, so I am keeping their card handy because of their honesty and promptness!
Jeanna Richelson
Oct 07, 2021
Will is very professional and is great to work with! He's kind and prompt and they did a great job installing my generator. I highly recommend Reliable!!
Barbara F.
Aug 31, 2021
I feel confident that the work is well done on every job you do ! I believe you are extremely honest about all the work that has to be done ! Your entire staff is very helpful and your service men are the best and so respectful of me and my home ! Fair pricing as well !
Craig G.
Aug 11, 2021
Great service and both technicians, sales, and phone representatives have been good to work with. They do a good job of keeping you updated on status and estimated arrivals. I've used them both to fix and maintain our existing system, plus had them install a mini-split for a special scenario use-case.
Terry W Morrow
Mar 31, 2021
Joe came out and did a general cleaning service on a/c unit. He was extremely polite and professional. He gave me a courtesy call to let me know what time he would arrive at house. He was fast and efficient and the price was very reasonable. I will be using them again when I need service on my unit.
Julie Davis Newell
Mar 04, 2021
We've been using Reliable Heating and Air for more years than I can remember! They are always prompt, curtious, and "reliable". Our technician, Jeraime, is knowledgeable and always take care of any problems we have, which are few because they take such good care of our unit!
Annette Herrin Reeves
Feb 23, 2021
Excellent service. Handled our problem quickly and as usual knowledgeable and professional. Always on time and pleasant to work with.
Joe K.
Jan 03, 2020
I've had a couple of experiences with Reliable. After a false start with another company I called Reliable based on a neighbor's recommendation. I had Matt by for routine maintenance on my 2 heat pump systems and the Carl to run a gas line to my new range. Both techs exhibited great customer service skills and did their job well. Carl was outstanding and went the extra mile to get my installation done correctly and expeditiously.

He was able to do a job that another company gave up on after 5 hours of effort. Carl is a seasoned professional that was a joy to work with! I am recently retired and from the north. My background is management at a $70M HVAC firm. I was there for 36 years! Your workers are your company and they did a very strong job for me! Thanks
Cindy M.
Oct 26, 2018
We have finally found our HVAC service guy! Cameron Scoggins just repaired our unit and cleaned it without charging us more. We will definitely be using him again!
Sarah F.
Aug 27, 2017
We had an issue with our air not running properly, and the unit freezing up. Since We weren't pleased with the last company we used, my husband decided to call Reliable heating and air. It was a Saturday morning and I was expecting to pay the after hours price, however I wasn't expecting it to be so great of a deal! Very pleased, plus Larry told us the service call price up front.

Once Larry arrived at our house ( about an hour after us calling him.he had one client ahead of us) he addressed the issue quickly, very friendly. I am pleased with the service, price, and friendliness of this company. Highly recommend!
Karen Q.
Aug 25, 2017
I've always been pleased with the prompt service I receive from Reliable. they are courteous and capable.
Hans M.
Feb 26, 2017
I've dealt with reliable twice. The first time I was way overcharged. I was out of town and my wife and baby were home and the heat went out. They charged me over 500$ to replace a heat strip. (A 70$ part that literally takes 2 minutes to plug in.) Since then I moved to California and rented my house out. The AC went out last summer and my tenants were very uncomfortable. Reliable was the only company that could make it out quickly considering they are minutes down the street.

I was told that I have a very old hvac and the part that needs replacing cannot be found anymore. They recommended replacing the unit which would cost over 4000$ I decided to have a second opinion by my property managers hvac guy. He told me he could get the original part for 600$ and install for 200$ or I could get an aftermarket part for 300$ installed for 200$.

It has been 6 months now and the hvac is working fine. I feel like reliable was taking advantage of the fact that I live all the way in California and I couldn't be there to verify the things they were saying. The guy that fixed my AC told me that he use to be an employee of reliable and this was common practice there and this is one of the reasons he left the company. Just be aware. Have a second opinion. Even if you are freezing or burning up. It could save you thousands.
Will D.
Sep 15, 2016
My wife and I recently moved to town and needed to replace the entire HVAC system for the upstairs. Reliable did an initial consultation and explained how modifications to the venting would not only help the new system save energy, but would also significantly increase its cooling and heating efficiency. They also made a low cost suggestion to improve the efficiency and life of the system that serviced our main floor.

The job took four days, went very smoothly and exactly according to the plan Reliable laid out beforehand. Every technician was experienced, highly skilled and extremely professional - even meticulously cleaning the home every evening before they left. I am very pleased with Reliable Heating and Air and specifically impressed with the diagnostic service prior to getting started. I would highly recommend that you engage the smart guys at Reliable to install and service your home's HVAC systems. Five stars!
Tim L.
Nov 24, 2015
BUYER BEWARE! Yesterday was the coldest morning of the season (1/23/15) and Reliable charged me $280 for a new thermostat that I could have purchased online for $104.
Richard R.
May 14, 2015
We decided to update both HVAC systems and also install a Generac gas generator as our wooded neighborhood has had numerous power outages over the years and we are the last house on a non-critical power line. The extreme weather in the last few years made us decide to include a generator in the total package. Since the same service men were on site, Reliable offered us a discount on labor costs.

I poured the concrete pad for the generator. Although we picked a time of year when the weather was not extreme, they expedited things by sending two crews for the first two days, and one crew the third day. They did a great job on all the work and cleaning up afterwards. We have used Reliable for at least 15 years; they installed the unit we replaced (it was still fine, we just didn't want to wait until it broke down in a het wave, and the efficiency is much better now), and they did our gas water heater a few years ago.

I think the reason we have had no problems with equipment so far is that we signed up for the Reliable service contract. We have found the technicians over the years very professional and courteous, and careful to not track in dirt when servicing our upstairs split unit.
Chris S.
Feb 20, 2015
Coldest day of the year, I am home sick and the heater conks out. Hubby comes home flips all the breakers, nothing. Called Home Depot where we bought the system and the girl tells me it could be 2 -3 days. Seriously? It's 17 outside. Call Reliable and they say they can have someone out in 2-3 hours. About 1/2 hour later serviceman Chris calls. Comes out, resets a breaker we didn't know about, tightens connections, heat again.

About 2 hours later, heat is off again. Call, Chris comes back in record time. Replaces breakers, waits to make sure heat is running correctly, checks the outside unit to make sure he hasn't missed anything. Everything is great. The kicker? About 2 hours later, Chris calls because he has just done a job nearby and before he leaves the area he wanted to make sure we were still okay. Great Customer Service. Recommend to everyone. Thank you Reliable.
Elizabeth M.
Jan 13, 2015
Excellent company. "Reliable" in all ways. Dan R was polite, came within a short time of being called for fan motor that had stopped working. The part on this old machine had to be ordered, but he was here as promised by Mon. AM and called to say he was on his way. I'm new to heat pumps, but he politely answered my questions. Will be looking to replace the whole unit in a few months before the compressor gives out! I will certainly use Reliable again.