★★★★½ 4.7 · 325 Google reviews · 2511 Byington Solway Rd
A-1 Certified Service, Inc. holds a 4.7 star average across 325 Google reviews, which places it at #37 for hvac & air conditioning in Knoxville on our rankings. Positions come from verified public ratings and review volume, refreshed monthly. See the full list on the HVAC & Air Conditioning rankings page.
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