About
A1-Certified Service: 60 years of comfort. Founded by Tom Thomas in the 1960s. Knoxville's HVAC expert since the 1990s. Call us at (865) 691-5088.
For the past 60 years, the experts at A1-Certified Service, Inc. in Knoxville TN have given our customers comfort and peace of mind. We began in the late 1960's when cooling your home was in its infancy. Tom Thomas opened his doors to provide comfort to the homeowners in Central Florida. In the early 1990's, Tom moved to Knoxville, TN, and we have been serving the Knoxville & surrounding communities for over 20 years. In 2012, Tom released the reigns of A-1 Certified Service, Inc. to his daughte...
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Services
HVAC
Air Conditioning
Heating
HVAC Repair
Heat Pump
Air Duct Cleaning
Ductless
AC installation
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Current Hours
- Sun CLOSED
- Mon 8:00 AM - 4:30 PM
- Tue 8:00 AM - 4:30 PM
- Wed 8:00 AM - 4:30 PM
- Thu 8:00 AM - 4:30 PM
- Fri 8:00 AM - 4:30 PM
- Sat CLOSED
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Sat CLOSED
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