A-1 Certified Service

daikin pro1

Real Customer Reviews of A-1 Certified HVAC Service in Knoxville

Suzanne R.

This family-owned business has always been our first choice for all of our AC/heating needs. Juan was prompt, courteous, helpful, and thorough. He answered my questions and explained in ‘this human has no freaking idea how the whole AC thing works’ terms – and I have to say, I truly appreciate that!! Juan is an asset. Thank you! Y’all are the best!

Becky M.

Very positive and friendly. Thank you. Would not have had to make a visit if the thermostat had been calibrated when installed.!

Tina W.

They did an awesome job with our attic insulation. Tommy was very thorough & explained everything! They took before & after pictures for me. Michelle researched all issues prior to the job being done- reasonably priced! A1 has also worked on my HVAC repairs in the past & did a great job! Keep up the great service guys! Ty!

Steve W.

Very thorough in the home assessment and in follow-through. They did exactly what they said they would. Great attention to detail.

John G.

The technician Jason has serviced our heat pump three times now and does excellent work. He is attentive to detail and looks for little issues to correct before they become big problems. He is friendly, prompt, and very professional. We highly recommend Jason and A-1 Certified thus far! John & Tina

Billie C.

The Tech Jamal was very professional and helpful. He answered all my questions and, addressed all my concerns. I was grateful for his knowledge and experience.

Steven M.

It is good company, and a Good repair man, very polite and helpful, fixed our problem, would most definitely recommend this company to anyone!

Randolph S.

Andy and the crew were very courteous and professional while installing our new HVAC system. Kept me informed throughout the installation. Excellent crew to have here!

Deedee M.

Was very pleasant. Professional and appeared to be knowledgeable. Definitely felt he was going to check everything out that needed to be checked on.

Natasha M.

I was having trouble with my heat not working. I called them and they were out by that evening and explained everything they were doing and had us up a running in no time. They were very polite and went over everything. They are very kind and knowledgeable about what they do.