Your Best Choice for AC, Plumbing, & Furnace Repair in Knoxville, TN
In the Knoxville area, A-1 Certified Service, Inc. is well known for providing exceptional furnace 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, Plumbing, & Furnace Repair in Knoxville, TN in Knoxville TN. Call us today at (865) 691-5088!
Local Reviews
for Knoxville, TN
Powered by Nearby NowGreat Service
Karen - Knoxville, TN
Nice to see a woman doing a man’s job?? Ash was very professional, knowledgeable, thorough and very nice. She’s doing her job and I commend Ash and A-1 for doing the right thing, hiring her! Thanks!
Josh service 10-8-2020
Doug - Knoxville, TN
On time, great service
Noreen - Knoxville, TN
Great service
Amy - Knoxville, TN
Technician was very friendly and knowledgeable!
Broken HVAC
Tonya - Knoxville, TN
Josh B was prompt, very fast, very courteous. I could tell right away that this young man was a hard worker and knew what he was doing.
Prompt professional service
Kimberly - Knoxville, TN
The HVAC service I’ve been looking for for 20 years! Thank you
Awesome Service!
Kim B. - Knoxville, TN
Josh and Tommy went above and beyond to replace my worn out heat pump with a sleek and efficient new dual-fuel heat pump. They were on time and worked all day in hot and humid weather.
Friendly and Efficient
Cary - Knoxville, TN
Stayed in contact regarding a repair that took a few visits to get done, but Josh and office staff always followed through.
Great service
Rachel - Knoxville, TN
Excellent service
Gail - Knoxville, TN
Had our biannual maintenance on hvac. Good report but many wait until a problem occurs before ask for service. They try to save money. You can save by scheduling maintenance checks. Well worth it. Our Service tech was very professional and completed the service in a timely manner.
Heater check-up
Carol - Knoxville, TN
Good service
Sellers - Knoxville, TN
A Happy Customer Again
Paul - Knoxville, TN
Great service
Jane - Knoxville, TN
Josh was professional, polite, and quick to solve the problem with my ac.
10-year plus client of A-1 Certified
Phillip - Knoxville, TN
Josh was professional and friendly, quickly diagnosed and fixed the problem.
Great Job
Larry - Knoxville, TN
Did a good service and explained everything he was doing.
Great Service
CJL - Knoxville, TN
Service
Chandler - Knoxville, TN
I appreciate the way Josh handled our repair. We have been experiencing problems ever since it was installed. Twice due to zip ties that should have been cut when installed. We have put more money into this system than we should have and several times due to the installer. I appreciate the way Josh and A-1 did their best to make it right. Josh went above and beyond and was very courteous. Thank you.
Friendly and Knowledgeable Staff!
Liz - Knoxville, TN
We received great service with a very quick response time! Tommy and Tyler were very professional and helpful. We will definitely use them again and would recommend them to others!
Great Service!
John - Knoxville, TN
Prompt, efficient service from a friendly fellow.
Excellent service!
Underwood - Knoxville, TN
The guys were friendly, showed the utmost respect to my Mom and her home. Josh, Tyler and Tommy were professional, answered all of our questions and did a great job! We plan to consider A-1 service in the future as well as recommend them to our family and friends.
We’ve used A1 for several years now,: prompt, courteous, and trustworthy. Highly recommend
Phil - Knoxville, TN
Great Service
Patrick - Knoxville, TN
Polite, quick and Easy
Very professional tech
Wanda - Knoxville, TN
Very polite, checked out the unit on a timely matter, replaced my filters and explained my ticket so I understood what he checked out..
Very good customer service
Critha - Knoxville, TN
Great price! Hoping it helps :)
Jacqueline - Knoxville, TN
I had basic air sealing done at my home. Built in 1925, it’s very drafty and I’m hopeful the air sealing will make a difference in my KUB bill. Everyone I met with the company was personable and knowledgeable.
You always send the best!
Steve - Knoxville, TN
Marcus is always such a great guy...both on a business and personal basis. Knows his stuff!
Josh is very professional and excellent at explaining the issues and what is needed going forward.
Theresa - Knoxville, TN
Great courteous service.
Rick - Knoxville, TN
Satisfying
Very nice technician
Robert - Knoxville, TN
Brandon was very nice and professional. Seems to have fixed problem! Thank you!
Brandon did a excellent job with the installation and explaining the correct operating procedure to me.
Teresa - Knoxville, TN
Satisfied customer
Kathy - Knoxville, TN
My heat pump went out twice in 72 hours during the extremely cold weather. Matt got it running again,took the time to research the history of problems and arranged for a warranty replacement of the heating unit. He was very professional and took the time to explain what he was doing.
Wonderfully patient experienced workers!
Rita - Knoxville, TN
I didn’t understand how they were going to fix my ducts and they explained it to me in layman’s terms. They cleaned up after themselves and everything looks great! I had some additional questions and they told me other services they offered. I use these guys for regular maintenance too. Will continue to call on them as this old house grows older!
Excellent service
Geroge - Knoxville, TN
Marcus was very knowledgeable and very helpful.
Knowledgeable and considerable
Tony - Knoxville, TN
Mat was professional and courteous and experienced and arrive at a timely manner thank you
Fantastic service.
Marty - Knoxville, TN
Great
Wanda - Knoxville, TN
Very good and A-1 Service
SATISFIED CUSTOMER!!
Angel - Knoxville, TN
I am so grateful for Ms. Shanda, Mr. Josh, Jimmy and Matt Mann. They were very professional, courteous and knowledgeable about the work they were doing at my house. They did not stop until the work was properly installed and perfect! Thanks to this crew...we now have great heat and awesome new windows. It works great and looks good too. Please acknowledge them for there great work, efficiency and effectiveness. They are truly an asset to your company! God Bless. Mrs. Bowman
Great Service, knowledgeable professional
Mark - Knoxville, TN
Matt was our HVAC professional who was prompt, polite, knowledgeable, and skilled.
Great
Charlene - Knoxville, TN
Service was excellent, courteous and informative
Efficient and knowledgable
Roger - Knoxville, TN
Our HVAC unit was under warranty through A-1. The heat pump wasn't working. They came out same day and got it taken care of under warranty.
Ash T.
Fall maintenance on a daikin gas furnace.
Josh B.
No heat
Ash T.
5 system Fall maintenance on Lennox split systems
Ash T.
No cool call on a Lennox split system.
Josh Y.
New ductwork
Josh B.
1 system maintenance
Ash T.
Install on condenser fan motor and blade.
Ash T.
Fall maintenance on a split unit
Ash T.
Fall Maintenance on a Rheem package unit.
Ash T.
Inducer motor changeout
Ash T.
No heat call
Josh B.
Josh B.
Josh B.
1 system maintenance
Ash T.
2 system Maintenance
Ash T.
Fall Maintenance on a Goodman package
Josh B.
No heat
Ash T.
Fall maintenance on a package unit.
Ash T.
1 system maintenance on a package unit
Ash T.
No heat call on Amana duel fuel system
Josh B.
1 system maintenance
Ash T.
Fall Maintenance on Amana package unit.
Ash T.
Fall Maintenance on a Lennox split heat pump and electric heat.
Josh Y.
Air seal and insulation
Ash T.
Installed new heat kit on a package unit.
Ash T.
Recharging package unit
Ash T.
Fall Maintenance on a Daikin package unit
Ash T.
No cool call on a Coleman split system.
Ash T.
No cool call on split system
Josh B.
No cool
Ash T.
Fall Maintenance on a Lennox split heat pump.
Josh B.
1 system maintenance
Ash T.
Fall Maintenance on Amana package unit.
Ash T.
Heat kit replacement on a Coleman split system
Josh B.
1 system maintenance
Josh B.
2 system maintenance
Josh B.
1 system maintenance
Josh Y.
Heating repair
Josh B.
1 system maintenance
Josh B.
1 system maintenance
Josh B.
Josh B.
No cool
Josh B.
1 system maintenance
Josh B.
1 system maintenance
Josh B.
1 system maintenance
