Due to the lack of resources in the available labor situation, we are having to remove our 24-hour service availability to customers. Once we are able to restate 24-hour service we will change our hours of service back to 24-hour emergency service. We apologize for the inconvenience at this time, but look forward to continually servicing all of our clients with 24-hour service in the near future. Sincerely, Michele Thomas
Call for reliable AC replacement in Knoxville TN.
 

Knoxville

See what makes A-1 Certified Service, Inc. your number one choice for Heat Pump repair in Oak Ridge TN.
Knoxville, Tennessee

Knoxville

Your Best Choice for AC, Insulation, & Furnace Repair in Knoxville, TN

In the Knoxville area, A-1 Certified Service, Inc. is well known for providing exceptional ac repair, installation, and service. The people we send out to serve you are also top notch, something you'll see in their reviews below. Everyone you deal with at our company has the goal of making sure your experience with us will be so good you'll call us every time you need help. You can feel confident working with A-1 Certified Service, Inc. because we stand behind our work and comply with all local codes. This is why, as you can see by the map and reviews below, we are rated so highly for AC, Insulation, & Furnace Repair in Knoxville, TN. Call us today at (865) 691-5088!

Local reviews for AC, Insulation, & Furnace Repair in Knoxville, TN.

Recent Jobs and Reviews in Knoxville, TN

Rated 5.0 out of 5 stars based on 128 customer reviews

Reviews

Excellent Service
Ed and Jamall were professional, courteous and personable. They completed our preventive maintenance efficiently.
Trader - Knoxville, TN 37922
Excellent customer service!!!
Jamal was awesome!! Very nice and knowledgeable. Answer all my questions and head great customer service. Thank you.
Donecia Sanders - Knoxville, TN 37921
Top notch
I cannot speak highly enough about this group. They were so kind and professional and the work they did was A+. Don’t hesitate. Hire them!
Charlene - Knoxville, TN 37923
Excellent Service!
Andy and the guys from A1 were a pleasure to have during their work. It was a big project and I could see how well their time management worked in coordinating and planning the days here. They were very friendly and took the time to explain all the processes if I had any questions or was curious. They were also okay if I needed to WFH, they would do their thing. They brought expert knowledge of advanced systems and a good work ethic. Definitely recommend Andy and his team.
Eric - Knoxville, TN 37917
He was excellent!
He was so very nice and helpful. I always have great service any time you guys come out. I really appreciate you all.
Angela - Knoxville, TN 37923
Excellent Service!
Jamall was professional and very polite, which was an added bonus, and went above and beyond his duties when reparing my 83 year old moms heat and air unit! He arrived well within the given time frame we were given and quickly had the unit up and working very well again! She was very pleased!
Gina - Knoxville, TN 37909
Excellent service
The whole crew were very friendly and knowledgeable ! Enjoyed having them in our home.
Thomas - Knoxville, TN 37920
Excellent service
Bethany - Knoxville, TN 37921
Excellent service
Excellent service as always. Jamall T has serviced our home unit multiple times and always does an outstanding job!
TK - Knoxville, TN 37920
Excellent service.
On time. Good communication. Semi-annual service to make sure my system is running properly. The technician was friendly and explained things well.
Geoff - Knoxville, TN 37922
Thank you for all your help!
Tricia - Knoxville, TN 37917
Wonderful service!
The techs that came out were very knowledgeable and any questions I had…They introduced themselves immediately and they very pleasant to work with. I was very please with the service….one tech handled the outside unit while the other gentleman (Ed) checked the actual motor …. They actually came at the early time scheduled for the time I was expected which I felt very lucky for 😊 I have always had great service from A1 and highly recommend them to anyone I know about the comfy…
Barbara - Knoxville, TN 37931
Excellent Service
Jacob and his crew Done a awesome job they were very professional and very nice they took the time to explain everything to me and showed me how all my new equipment operated I highly recommend them
Angela - Knoxville, TN 37924
Ait condition
Kiet - Knoxville, TN 37912
Great Service
Ed M. worked to resolve problems that were not easy to fix. Great job!
Richard - Knoxville, TN 37931
Exceptional service
A1 provides amazing service… quick and reliable. They stand behind the work they do. Jamall is a joy… so helpful with your HVAC needs.
Brenda - Knoxville, TN 37931
Fixed my Goodman heat pump
Awesome service
Ed - Knoxville, TN 37931
Love their service!
I have used them for our HVAC and attic insulation needs. All experiences have been great! They do such a good job at explaining things & answering our questions. Their office personnel always keep you updated if schedules need to be shifted- good communication. They are also cost efficient!
Tina - Knoxville, TN 37922
Duct Sealing
Good job by Tommy & his team.
Rick f - Knoxville, TN 37922
Juan is a great technician for A-1
Juan came today to service my Dakin unit. He did a very good job and was very informative.
Ann - Knoxville, TN 37923
Great service!
Juan was a pleasure and explained everything he was doing as he serviced our hvac systems.
Jodie - Knoxville, TN 37922
A-1 Certified has GREAT Employees
Victoria - Knoxville, TN 37919
Service Check
Juan was so nice! I could not be more pleased with his thorough work and his friendly demeanor.
Renata - Knoxville, TN 37923
Great Service!
The service tech Juan was polite and professional. It was an overall good experience.
TimK - Knoxville, TN 37931
Service review
Very good service
John - Knoxville, TN 37923
Great service
Very friendly. Answered all my questions and was knowledgeable.
Elizabeth - Knoxville, TN 37931
Great technician
Cathy - Knoxville, TN 37931
Professional service tech
Great experience
Mark - Knoxville, TN 37917
Very professional, thorough service
Very polite, discussed any issues he found before proceeding with the work.
Sharon - Knoxville, TN 37938
Professional & Courteous
Great experience
Julie - Knoxville, TN 37923
Awesome Tech
Jason is the best worked until the job was done!
Wyatt - Knoxville, TN 37918
Juan was great and professional, great service
We’ve been with you all since 2004. You have gone through changes, but remain very efficient. Thanks to Madison for the follow up!
Karen - Knoxville, TN 37921
Awesome service!
A-1 has always given true reliable service, keeps my old Rheem going strong. Thanks Jason for always being friendly kind and respectful of our home. God Bless you.
Patricia - Knoxville, TN 37932
Great Serive
Great service as always
Joe - Knoxville, TN 37918
Amazing service
Excelente
Rosaura - Knoxville, TN 37924
Great service!
Very pleased with A-1 Certified! Always courteous and on time. I know I can trust their quality of work and honesty! #1 in this area!
Pat - Knoxville, TN 37931
Great service
Tech very helpful and professional
Joy - Knoxville, TN 37931
Knowledgeable and professional service, quick scheduling, price.
Jason checked our HVAC unit head to toe, diagnosed the issues, informed us of our options and completed the repairs in one visit. Worth every penny and greatly appreciated!
Brian - Knoxville, TN 37938
Great service
Jason did a really good job and was prompt in his work. He also discussed that based on age of my unit it is still working well. He pointed out things to listen and watch for yo ensure it keeps working h well.
Taylor's - Knoxville, TN 37920
Excellent service, priced for homeowner to be able to maintain their system.
Timely, conscientious technician, conveys his findings well.
Tedra - Knoxville, TN 37931
Honest and Knowledgeable
Happy with their service and really enjoy Jason. He knows how to fix things and was upfront and honest with me. Exactly what you want in an A/C repairman.
Mark - Knoxville, TN 37931
Expert service
As usual, no complaint. Everything was done thoroughly
Riley - Knoxville, TN 37931
Jason was great!
Jason phoned ab it 15 minutes prior to arriving & arrived on time, introduced himself and wore his blue shoe coverings while in our home. He proceeded to inspect our units and when he was done, he explained what he had done & then had me sign 2 forms he had used to do his inspections. Jason was very professional, courteous & got right to work.
Jamie - Knoxville, TN 37931
On time and great service
They technician was prompt courteous and did a good job with both of our heating and cooling units.
Yvonne - Knoxville, TN 37921
Friendly & On Time
Service was great - technician was on time and got the work done in a timely manner so I could go about my day.
Cheryl - Knoxville, TN 37932

Job Locations

Ed M.
Ed M.
Knoxville, TN 37922
Jamall T.
Jamall T.
We have R22 !! A1 certified
Knoxville, TN 37938
Knoxville, TN - We have R22 !!
A1 certified
Andy C.
Andy C.
Installation of Goodman 2.5 ton split HVAC system
Knoxville, TN 37924
Knoxville, TN - Installation of Goodman 2.5 ton split HVAC system
Jamall T.
Jamall T.
Bad contactor
Knoxville, TN 37931
Knoxville, TN - Bad contactor
Ed M.
Ed M.
Maintenance
Knoxville, TN 37923
Jamall T.
Jamall T.
Bad capacitor on split system
Knoxville, TN 37915
Knoxville, TN - Bad capacitor on split system
Jamall T.
Jamall T.
Bad capacitor on split system
Knoxville, TN 37915
Jamall T.
Jamall T.
Short on board on Coleman unit. 14 ohms across each component.
Knoxville, TN 37921
Knoxville, TN - Short on board on Coleman unit. 14 ohms across each component.
Tommy M.
Tommy M.
Daiken split AC/Gas system
Knoxville, TN 37923
Knoxville, TN - Daiken split AC/Gas system
Ed M.
Ed M.
Clogged drain line
Knoxville, TN 37931
Andy C.
Andy C.
Installation of Daikin FIT 3 ton HVAC system with Daikin One smart thermostat
Knoxville, TN 37917
Knoxville, TN - Installation of Daikin FIT 3 ton HVAC system with Daikin One smart thermostat
Jamall T.
Jamall T.
Low voltage short on contactor r22 unit
Knoxville, TN 37923
Knoxville, TN - Low voltage short on contactor r22 unit
Jamall T.
Jamall T.
Coleman
Knoxville, TN 37909
Knoxville, TN - Coleman
Jamall T.
Jamall T.
Knoxville, TN 37909
Knoxville, TN -
Ed M.
Ed M.
Maintenance
Knoxville, TN 37917
Jamall T.
Jamall T.
Maintenance on Diakin split system
Knoxville, TN 37921
Knoxville, TN - Maintenance on Diakin split system
Ed M.
Ed M.
Service
Knoxville, TN 37931
Ed M.
Ed M.
Maintenance
Knoxville, TN 37931
Ed M.
Ed M.
Maintenance
Knoxville, TN 37931
Ed M.
Ed M.
Maintenance
Knoxville, TN 37931
Tommy M.
Tommy M.
Daikin minisplit
Knoxville, TN 37920
Knoxville, TN - Daikin minisplit
Andy C.
Andy C.
Daikin FIT 97% ac/gas system
Knoxville, TN 37923
Knoxville, TN - Daikin FIT 97% ac/gas system
Andy C.
Andy C.
Daikin 2 Zone mini split system
Knoxville, TN 37917
Knoxville, TN - Daikin 2 Zone mini split system
Andy C.
Andy C.
Home performance R38 Attic insulation, air sealing and duct sealing
Knoxville, TN 37921
Ed M.
Ed M.
Split system maintenance
Knoxville, TN 37923
Tommy M.
Tommy M.
New daikin fit installed
Knoxville, TN 37921
Knoxville, TN - New daikin fit installed
Andy C.
Andy C.
Installation of Daikin 2 ton package HVAC system
Knoxville, TN 37914
Knoxville, TN - Installation of Daikin 2 ton package HVAC system
Ed M.
Ed M.
Bad cap 45+7.5
Knoxville, TN 37932
Jamall T.
Jamall T.
Knock loose reversing valve on older heat pump
Knoxville, TN 37919
Knoxville, TN - Knock loose reversing valve on older heat pump
Andy C.
Andy C.
Installation of Daikin 2TON Heat Pump Package HVAC system
Knoxville, TN 37920
Knoxville, TN - Installation of Daikin 2TON Heat Pump Package HVAC system
Jamall T.
Jamall T.
Bad capacitor on longtime maintenance customers replaced in reasonable amount of time for a reasonable price A1certs1@gmail.com
Knoxville, TN 37920
Knoxville, TN - Bad capacitor on longtime maintenance customers replaced in reasonable amount of time for a reasonable price 
A1certs1@gmail.com
Andy C.
Andy C.
Installation of Daikin 2 Ton Split HVAC System as well as 80% GAS Furnace
Knoxville, TN 37912
Knoxville, TN - Installation of Daikin 2 Ton Split HVAC System as well as 80% GAS Furnace
Ed M.
Ed M.
Maintenance
Knoxville, TN 37920
Knoxville, TN - Maintenance
Ed M.
Ed M.
Knoxville, TN 37920
Tommy M.
Tommy M.
Installation of Daiken split system / Home Performance.
Knoxville, TN 37931
Knoxville, TN - Installation of Daiken split system / Home Performance.
Jamall T.
Jamall T.
Leaking evaporator coil, with warranty till june
Knoxville, TN 37902
Knoxville, TN - Leaking evaporator coil, with warranty till june
Jamall T.
Jamall T.
Fan speed set to high causing dirty sock syndrome. Adjusted and tested cfm and cooling capacity A1 Certified
Knoxville, TN 37921
Knoxville, TN - Fan speed set to high causing dirty sock syndrome. Adjusted and tested cfm and cooling capacity 
A1 Certified
Ed M.
Ed M.
New stat
Knoxville, TN 37921
Knoxville, TN - New stat
Andy C.
Andy C.
Installation of Daikin Fit HVAC system with 80% gas furnace GPS and HEPA filtration system
Knoxville, TN 37931
Knoxville, TN - Installation of Daikin Fit HVAC system with 80% gas furnace GPS and HEPA filtration system
Jamall T.
Jamall T.
Maintenance on package unit
Knoxville, TN 37921
Knoxville, TN - Maintenance on package unit
Ed M.
Ed M.
Completed maintenance on package system
Knoxville, TN 37922
Ed M.
Ed M.
Completed maintenance on package system
Knoxville, TN 37922
Knoxville, TN - Completed maintenance on package system
Ed M.
Ed M.
Knoxville, TN 37922
Ed M.
Ed M.
Knoxville, TN 37922
Jamall T.
Jamall T.
Gas package maintenance
Knoxville, TN 37932
Knoxville, TN - Gas package maintenance
For AC in Knoxville TN, we accept all major credit cards.
 
We accept cash for Air Conditioning repair service provided in Oak Ridge TN.
We accept check for Heat Pump repair service provided in Farragut TN.
 
Call us today  •  (865) 691-5088  •  or  •  Fill Out Our Online Form
We accept cash for Air Conditioning repair service provided in Oak Ridge TN.
For AC in Knoxville TN, we accept most major credit cards.
We accept check for Heat Pump repair service provided in Farragut TN.
24 Hour Emergency Service Available
A-1 Certified Service, Inc. works with Trane AC products in Oak Ridge TN.
Contact Information
 
2511 Byington Solway Rd.
Knoxville, TN 37931
(865) 691-5088
Monday - Friday  |  8:00am - 4:30pm
Saturday and Sunday  |  Closed
Best HVAC & Furnace Repair in Knoxville
2511 Byington Solway Rd.
Knoxville, TN 37931
(865) 691-5088
M-F  |  8:00am - 4:30pm
24/7 Emergency Service Available
 
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