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Compare HVAC costs in Hilton Head Island, SC (2026)
Not sure which option fits? Here's how every HVAC project compares in Hilton Head Island — 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 – $6,850
Best for: Lowest upfront cost for homes with gas heatTypically $5,350
Heat Pump Installation$6,700 – $12,150
Best for: Most efficient; heats and cools in one systemTypically $9,450
Central AC Installation$6,150 – $13,100
Best for: Cooling only — pairs with an existing furnaceTypically $9,650
Full HVAC System Replacement$8,400 – $15,600
Best for: Best when both heating and cooling are dueTypically $12,000
Often paired with HVAC in Hilton Head Island
Homeowners tackling HVAC frequently budget for these too.
Estimates are localized to Hilton Head Island (hot climate) using local labor price levels, climate factors and permit fees. Always confirm with local contractors.