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Compare HVAC costs in Knoxville, TN (2026)
Not sure which option fits? Here's how every HVAC project compares in Knoxville — local 2026 estimates plus what each choice is best for. The most budget-friendly option here is Furnace Replacement (from $3,800).
Furnace ReplacementBest value$3,800 – $6,800
Best for: Lowest upfront cost for homes with gas heatTypically $5,300
Central AC Installation$5,400 – $11,550
Best for: Cooling only — pairs with an existing furnaceTypically $8,500
Heat Pump Installation$6,450 – $11,800
Best for: Most efficient; heats and cools in one systemTypically $9,150
Full HVAC System Replacement$7,750 – $14,400
Best for: Best when both heating and cooling are dueTypically $11,100
Often paired with HVAC in Knoxville
Homeowners tackling HVAC frequently budget for these too.
Estimates are localized to Knoxville (mixed climate) using local labor price levels, climate factors and permit fees. Always confirm with local contractors.