A-1 Certified Service Inc

About us

Michele Thomas is the owner/contractor of A-1 Certified Service, Inc and graduate of the University of Tennessee, Knoxville. She is the 2nd generation of a long standing, family owned business. Over 40-years’ experience in service and installation of air conditioning and heating systems, and Home Performance (Insulation, Air Sealing, Duct Sealing). We are the East Tennessee Premier Daikin Dealer and TVA EnergyRight Contractor. In fact, A1CSI has won the Best and Customer Service with the TVA EnergyRight program for the last two consecutive years. We offer financing to meet your needs. We hold an A+ rating with the Better Business Bureau.

Business highlights

25 years of trusted experience
Women Owned & Operated
LGBTQ+ Friendly
Family Owned & Operated
Emergency Services Offered
Eco Friendly

Services we offer

Air Conditioning and heating, insulation, home performance, duct sealing and air sealing.

Services we don't offer

spray foam insulation;

Amenities

Free Estimates
Yes
Warranties
Yes
Senior Discount

10%

Emergency Services
Yes


Accepted payment methods

American Express
Check
Discover
Financing Available
MasterCard
Visa

Photos of past projects

Reviews

4.764 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
88%
4
5%
3
2%
2
2%
1
5%


Rating CategoryRating out of 5
quality
4.7
value
4.5
professionalism
4.7
responsiveness
4.8
punctuality
4.7
Showing 51-64 of 64 reviews

Lynn G.
02/2021
5.0
insulation
  + -1 more
Everything was great.
Description of Work: Insolated crawl space with foam
Rating CategoryRating out of 5
Yes, I recommend this pro

Response from A-1 Certified Service Inc
Thank you for your review of our team! We appreciate our great customers.

Juanita H.
08/2020
5.0
air duct cleaning
  + -1 more
VERY WELL.
Description of Work: Replace dropped duct for H/A.
Rating CategoryRating out of 5
Yes, I recommend this pro

Response from A-1 Certified Service Inc
Dear Ms [Member Name Removed], Thank you for your review of our A-1 Certified Service Team! It's great customer's like you that make us great!

Jim C.
08/2017
5.0
heating & air conditioning/hvac
  + -1 more
Very well.
Description of Work: New HVAC system.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$10

Response from A-1 Certified Service Inc
Thank you for your feedback Mr. [Member Name Removed]. We appreciate you being part of the A-1 Certified Service, Inc. family!

Timothy T.
05/2017
4.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: .

Rating CategoryRating out of 5
quality
4.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Response from A-1 Certified Service Inc
Dear Mr. [Member Name Removed], Thank you for your review on Angie's List. We strive to provide the highest in customer satisfaction!

Ken S.
05/2017
5.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: .

Rating CategoryRating out of 5
quality
5.0
value
3.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

$200

Response from A-1 Certified Service Inc
Thank you for your feedback. We, at A-1 Certified Service Appreciate your support.

Edward S.
09/2016
5.0
heating & air conditioning/hvac
  + -1 more
unknown
Description of Work: .
Rating CategoryRating out of 5
Yes, I recommend this pro

Response from A-1 Certified Service Inc
Thank you for providing feedback! WE truly appreciate customer like you.

susan W.
08/2015
5.0
heating & air conditioning/hvac
  + -1 more
unknown
Description of Work: They didn't even charge me the last time they came out to clean and service my unit. They're Honest reliable and dependable.
Rating CategoryRating out of 5
Yes, I recommend this pro

Response from A-1 Certified Service Inc
Dear Ms [Member Name Removed], Thank for you feedback. Our entire team strives to provide the best customer service to everyone. Sincerely, Michele

Timothy C.
07/2015
5.0
heating & air conditioning/hvac
  + -1 more
unknown
Description of Work: Installed a split heat and air system

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$10

Response from A-1 Certified Service Inc
Dear [Member Name Removed], Thank you for your review on Angie's List. Here at A-1 Certified Service, Inc., we strive to provide the best in comfort and customer service. Thank you for your continued service with us. We appreciate your business. Thank you, Michele Thomas Owner

Venus S.
04/2015
4.0
heating & air conditioning/hvac, insulation, air duct cleaning
  + 1 more
unknown
Description of Work: Residential Insulation Residential Duct Installation |Filters, fuses, circuit breakers, condensate pump, condensate |leaks, existing copper lines, existing duct system, refrigerant, |shipping, handling and maintenance are not included in either |warranty and are the homeowner's responsibility. There may be |other items that are not covered by the manufacturer. Manufacturer |recommends annual and/or semiannual maintenance be performed |to maintain system.

Rating CategoryRating out of 5
quality
4.0
value
3.0
professionalism
4.0
responsiveness
4.0
punctuality
3.0

Yes, I recommend this pro
$5,677

Response from A-1 Certified Service Inc
Hi [Member Name Removed] Thank you for providing your feedback on Angie's List. We, at A-1 Certified Service, Inc, look forward to all of our customer's reviews to drive the best customer experience. Thank you, Michele Thomas President A-1 Certified Service, Inc.

Lynda L.
03/2015
5.0
heating & air conditioning/hvac
  + -1 more
unknown
Description of Work: Replaced pressure valve on furnace. Now works great!

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$192

Response from A-1 Certified Service Inc
Thank you for your review, [member name removed]! We truly appreciate your business. Thanks, Michele

Kelly D.
06/2014
5.0
air duct cleaning, heating & air conditioning/hvac
  + 0 more
unknown
Description of Work: A-1 CERTIFIED SERVICE INC installed our new AC unit one year ago. They came out and performed the one year service inspection for free. We have been extremely pleased with the company, the quality of our TRANE Elite unit. It didn't need anything done to it. I plan to buy the maintenance agreement because I like the company so much. Highly recommended!

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Response from A-1 Certified Service Inc
Thank you for your kind words Mrs [member name removed]. I hope your Lennox system is providing great comfort to your home. We cannot wait to see you for your next maintenance inspection.

Patty R.
06/2013
5.0
heating & air conditioning/hvac
  + -1 more
Came and repaired the corroded wire by rerouting from interior unit...drilling new exit ...cleaned serviced three units...very professional and prompt
Description of Work: Trouble shooting apparent electrical exterior wiring problem along with seasonal maintenance that we have a contract for all three units in our house

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$200

Birsen A.
01/2013
5.0
heating & air conditioning/hvac
  + -1 more
Our upstairs Rheem split unit A/C went out in Spring. I did some research on the internet on the type of A/C I wanted to replace it, and came up with Amana as a good quality brand for the money. Amana had a list of installers, and A-1 Certified was one of them. I called Tom for a quotation on a new High Efficiency split system to be installed before the summer heat struck. He came to our house, and did a detailed measurement of the upstairs square footage and determined how many tons of cooling and BTU of heating we needed for the upstairs. We then talked for a while, and I decided on a High Efficiency Amana Heat Pump A/C with a Gas Furnace. Later, the installers came out and did a spectacular job. They ran a new control cable for the Heat Pump through the bowels of my house, to replace my existing control cable. I still don't know how they were able to manage that, because other installers wanted to staple it to the outside of the house. They even had to disassemble the furnace to take it up into the attic. The high efficiency furnace was larger than the old one, so they also had to cut and modify the output duct. I inspected the airworthiness of their job afterwards, and could not find any leaks. This was all done at the initially agreed on price. I am quite happy. We have a very long condensate drain from the attic to the outside of the house. Later that winter, that pipe froze, so an installer came out for free to put a pump in the attic to drain a condensate catch basin into the vent pipe. A fine and elegant solution. I also use them for checkups, and find the HVAC Techs to be knowledgeable and courteous, even when I am at their side, asking them questions while they are working. They are good. I hope they never change. If our downstairs gas pack ever went out, I would call them right away for a quote.
Description of Work: After our A/C went out in Spring, A-1 Certified installed a new High Efficiency Amana Heat Pump outside the house, and a High Efficiency Gas Furnace in the attic. Also, we have a very long condensate drain from the attic to the outside of the house. That winter, that pipe froze, so they came out for free to put a pump in the attic to drain a condensate catch basin into the vent pipe. A fine and elegant solution.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$5,690

Edward S.
02/2012
5.0
heating & air conditioning/hvac
  + -1 more
They are really good. They are really professional and they do craft work. I have been downstairs looking at the work and it is extremely well done. They are thorough and clean. They are highly trained by the Lennox factory and they are competent. Tom Thomas is the owner. I told him that I didn't see him on the List and he said that he was not a computer guy; he was a heating and air guy. I got a number of estimates and theirs was the best. They are very good.
Description of Work: We are using A-1 Certified Service for work on our heating and air conditioning. They sold us a Lennox heating and air conditioning system and they are presently installing it.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$11,000
    • 1
    • 2
    • 3(current)

Contact information

2511 Byington Solway Rd, Knoxville, TN 37931

http://www.a-1certifiedservice.com

Service hours

Sunday:
Closed
Monday:
8:00 AM - 4:30 PM
Tuesday:
8:00 AM - 4:30 PM
Wednesday:
8:00 AM - 4:30 PM
Thursday:
8:00 AM - 4:30 PM
Friday:
8:00 AM - 4:30 PM
Saturday:
Closed

Licensing

Bonded

Insured

Licensed*

Trade License Number
30987
Trade License Locale
TN
Trade License Authority
Tennessee Department of Commerce and Insurance Board
Trade License Expiration
01/31/2023

Eco-friendly Accreditations

LEED Accredited Professional
No
Energy Star Partner
Yes
EPA Lead-Safe Certified
Yes
Use Green Products or Work Practices
No
State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our State Contractor License Requirements page.

*Contact business to see additional licenses.


Service Categories


FAQ

A-1 Certified Service Inc is currently rated 4.7 overall out of 5.

Sunday: Closed

Monday: 8:00 AM - 4:30 PM

Tuesday: 8:00 AM - 4:30 PM

Wednesday: 8:00 AM - 4:30 PM

Thursday: 8:00 AM - 4:30 PM

Friday: 8:00 AM - 4:30 PM

Saturday: Closed

A-1 Certified Service Inc accepts the following forms of payment: American Express,Check,Discover,Financing Available,MasterCard,Visa
Yes, A-1 Certified Service Inc offers free project estimates.
Yes, A-1 Certified Service Inc offers eco-friendly accreditations.
Yes, A-1 Certified Service Inc offers a 10% senior discount.
Yes, A-1 Certified Service Inc offers emergency services.
Yes, A-1 Certified Service Inc offers warranties.
A-1 Certified Service Inc offers the following services: Air Conditioning and heating, insulation, home performance, duct sealing and air sealing.
spray foam insulation;

Contact information

2511 Byington Solway Rd, Knoxville, TN 37931

http://www.a-1certifiedservice.com

Service hours

Sunday:
Closed
Monday:
8:00 AM - 4:30 PM
Tuesday:
8:00 AM - 4:30 PM
Wednesday:
8:00 AM - 4:30 PM
Thursday:
8:00 AM - 4:30 PM
Friday:
8:00 AM - 4:30 PM
Saturday:
Closed