Mike was great! He got our A/C working again just in time…read morefor another heat wave. He is professional, friendly, honest and his prices are very fair too. I highly recommend giving him a call if you need some help with your HVAC system.

Michael was on time, did excellent job cleaning my two systems- explained fix needed. Quick and…read moreefficient. Highly recommend Comfort Repair Bradley USMC Retired GySgt

Terry was great! We need a whole new system and he get us fixed up in no time. Great service!!…read moreThe Muellers

Wonderful experience! We called in the morning and he came quickly and got us up and running again…read moresuper fast. Very friendly and very reasonably priced. I highly recommend!

Jake knows his stuff…read more Let's just stop a minute and clarify what I mean there. There are guys who grow up loving computers, wood working, working on cars, etc. You can tell they know their stuff just in the way they speak and their understanding of the different components and products. These are people who have life-long passions with their trade. I don't know if Jake grew up super-interested in HVAC but he certainly knows all about it. He was very thorough. The best recommendation: He's my HVAC guy going forward.

Best HVAC service ever, every detail was explained clearly. I definitely recommend magnolia…read moreservices.

All Systems Go arrived right on time for an HVAC assessment and cleaning. Tim, the technician had…read morethe best customer service, he was pleasant, engaged in conversation, and knew exactly what he was doing. This is a new company start up. We were not concerned they were new because it is part of Mr. Electric, who we use and trust, and pricing is very good compared to other small type businesses. Their customer service model carried over to All Systems Go! I recommend their value, and quality. Use them, you will not be sorry! Rich Oliver

From the owner: All Systems Go is a residential systems maintenance company that specializes in heating, air…read moreconditioning, and electrical systems. We are located in Johnson City, Tennessee. All Systems Go employs only the best HVAC technicians for your AC, furnace, heat pump, ductless mini-split, and heating repair, replacement, maintenance, and installation.

Quick service and repair my hvac. Check everything to make sure there no fault. Reasonable priceread more

Worst HVAC contractor in the area. We bought a new heat pump from them and it's been nothing but a…read moreproblem. It should be under warranty but every time something happens it remarkably cost more money. Stay away from AireTech and David.

We have been a customer of First American for 10 years and AAS HVACR serviced our house a couple of…read moretimes. Unfortunately this time their service was poor. Let 3 messages last week to ask a question and no return. Today paid them $208 for a line modification and since they were not able to fix the outside unit asked to check the attack and although I asked them to be careful, one of their young employee was not careful and had his feet through your ceiling. I am glad that he is okay but instead of wait to talk with me they just drove off and after call twice and ask to talk with the owner have received an unreasonable email. I try to support local firms but this type of pos sale is extremely poor. Waiting now for first American claim resolution, but based on that management style I do not want this company in my house anymore.

If you want to freeze to death when your heat is broken call AAA. 7 days and two times out and my…read moreheat is still not working. It did work for an hour when they came the second time. When I asked them to come back they said they could not show favortism and would be next available. I can assure I have not received any favortism. Also, they cannot seem to give me a time. They are rude, condescending and incompetent. It is impossible to speak to a person. They are quick to send rude and nasty texts but will not give their name. The text number is 423-251-2442.

DO NOT purchase anything from Tri city air conditioning, we bought a new Carrier two ton unit after…read moreone year nearly everything went out on the unit now it quit working again, after spending over $10,000 , we obviously bought a lemon, by the way it was just serviced a week before it went out again , my wife and I are almost 70 years old and can't take the heat, we ended up buying a portable air unit from Home Depot, DO NOT deal with these people !

Brian Hume was the lead contact. Brian did an excellent job explaining his proposal to replace my…read moreentire system. Two technicians (I misplaced their names, I apologize) installed a new heat pump system. They did an excellent job and were totally professional in my conversations with them. The system is working beautifully, both cool and heat. They have done the regular maintenance on my old system and service has always been excellent. I would recommend without hesitation.

Had a technician look at my heat pump, diagnosed it as needing an internal transfer valve. He…read morereturned with the part 4 days later , replaced it , asked to use my bathroom twice. Voila, a prescription bottle of OxyContin disappeared from a bedside table. Never again! Improvement would be to never allow a service person, technician to access your bathroom or bedrooms without direct observation.

Block off a LOT of calendar for these guys to show. Their scheduled appointments will be pushed…read moreback multiple times. They might let you know, they might not. 30 minutes after their latest push, I had to call to find that I'd had been rescheduled yet again. I canceled after wasting an entire day of vacation time. Would not recommend.