A-1 Certified Service

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Real Customer Reviews of A-1 Certified Service in Knoxville

Kasi B.

A-1 did a great job working with us to find a unit that met our needs. Scheduling was fast and the front office was really good at communicating everything. Our technician was fast and clean, going so far as to cover and tape all the clothes in the closet before going into the attic. I’d definitely recommend them!

Penny W.

Appreciate the rapid response from A-1 Certified! Jimmy arrived as scheduled, was kind and courteous, identified the issue and promptly had the problem resolved.

Eddy F.

Jimmy and his sidekick (dang it, I’ve already forgotten his name) were on-time, friendly, confident, quick and explained things well.

Lugene B.

The whole team at A-1 are absolutely amazing. They all went above and beyond to do an absolutely stellar job at my house installing a new heat and air system and duct work. Besides all of them being very professional they are also very kind, caring and personable. They get a 1000 + star from me.

Frank L.

Jimmy was prompt, professional and very informative concerning the repair and how my maintenance plan helped in the response time and discount.

Jeff W.

The tech was courteous and knowledgeable. He quickly showed me the problem and fix. It was simple and I’m glad it wasn’t anything more. The value of his visit is that he had the knowledge and skill to go to the simplest solution first, something I didn’t have. If that wasn’t the problem he would have had to go to the next level which I’m secure in the fact that he had the same knowledge and skill. Worth it.

Alex R.

Jamall and Ed were both great – prompt and professional service

Bart W.

Everyone that I worked with at A-1 was excellent. Michele consulted with me about different options to address the issue that I was having with my existing HVAC system. She was very patient and knowledgeable. Josh and Tommy did a great job with the installation. I am very satisfied with the experience and look forward to a more comfortable house.

Justin B.

I’ve had bad experiences with other companies and their HVAC maintenance plans (like having to chase them down for the agreed-upon service). Not with A-1 certified. They called to remind me that I was due and to schedule my apt! Ash was our tech and she was early, professional, and extremely friendly. Highly recommended!!

Ryan B.

Kris, Tommy, and the crew were great. Friendly enough, worked hard, cared about doing a good job, took the time to explain what they were doing and why… My family and I truly appreciate everything they did for us.