A-1 Certified Service, Inc.

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2511 Byington Solway Rd
Knoxville, TN 37931
+1 (865) 691-5088
https://www.a-1certifiedservice.com
Established in 2000, A-1 Certified Service is your premier Knoxville HVAC contractor, offering a complete range of services to keep your home comfortable year-round. Our certified technicians specialize in expert installations, repairs, and maintenance for air conditioning, heating, and furnaces. We also provide comprehensive solutions for air quality, including professional air duct cleaning and insulation services, designed to improve energy efficiency and create a healthier indoor environment. We are dedicated to delivering reliable, personalized service and ensuring complete customer satisfaction with every job. Reach out for expert heating, cooling, & indoor air quality solutions.
Providing Quality Service for Your Comfort

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Reviews

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3.56 reviews
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Frank G.
10/25/2025

The thermostat was reporting a communication error. Jimmy H came out, quickly determined the problem and resolved it. He was personable and fully explained his work

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Cydne V.
7/1/2025

Yelp needs to work on their mobile app for reviews. At any rate, Jimmy Hutcherson showed up ahead of schedule and was thorough, professional and efficient. He was finished with our A/C repair in...

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Janet V.
8/10/2024

Justin came out yesterday to check my HVAC system. He took the time to answer all my questions about the unit and went over and above by helping me trouble shoot the problem I was having with my...

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David W.
8/26/2018

MISREPRESENTATION, INCOMPETANCE, PROPERTY DAMAGE and FRAUD A-1 Certified Service MISREPRESENTED THEIR TECHNICAL EXPERTISE so that we would accept their estimate about the amount of time that was...

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David W.
9/14/2018

LYING, CHEATING and MANIPULATING Company MISREPRESENTATION, INCOMPETANCE, PROPERTY DAMAGE and FRAUD A-1 Certified Service MISREPRESENTED THEIR TECHNICAL EXPERTISE so that we would accept their...

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"They were very good at keeping me informed via text and calls all though out the install, from scheduling to install to final inspection. Final cost was exactly as estimated and system is running..."
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United States›Tennessee›Knoxville›A-1 Certified Service, Inc.

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