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Compare HVAC costs in Janesville, WI (2026)
Not sure which option fits? Here's how every HVAC project compares in Janesville — local 2026 estimates plus what each choice is best for. The most budget-friendly option here is Furnace Replacement (from $4,100).
Furnace ReplacementBest value$4,100 – $7,400
Best for: Lowest upfront cost for homes with gas heatTypically $5,750
Central AC Installation$5,150 – $11,050
Best for: Cooling only — pairs with an existing furnaceTypically $8,100
Heat Pump Installation$6,700 – $12,200
Best for: Most efficient; heats and cools in one systemTypically $9,450
Full HVAC System Replacement$8,200 – $15,200
Best for: Best when both heating and cooling are dueTypically $11,700
Often paired with HVAC in Janesville
Homeowners tackling HVAC frequently budget for these too.
Estimates are localized to Janesville (cold climate) using local labor price levels, climate factors and permit fees. Always confirm with local contractors.