Whole-home
What does it cost to fully upgrade a home in Hilton Head Island, SC? (2026)
Hilton Head Island · full-home upgrade
$31,300 – $78,850
Estimated total to modernize the major systems of a typical Hilton Head Island home, localized to your area.
Few homeowners do everything at once — but if you're planning a full modernization in Hilton Head Island, here's how the major projects add up. Each line is a localized 2026 estimate; click any project for the full breakdown.
| Project | Hilton Head Island 2026 range |
|---|---|
| HVACFurnace Replacement | $3,800 – $6,850 |
| RoofingAsphalt Shingle Roof Replacement | $6,050 – $12,450 |
| Water HeatersTank Water Heater Replacement | $1,250 – $3,200 |
| WindowsVinyl Window Replacement | $5,200 – $15,350 |
| PaintingInterior House Painting | $3,950 – $11,900 |
| FlooringHardwood Flooring Installation | $5,950 – $14,900 |
| PlumbingWhole House Repipe | $3,600 – $8,100 |
| InsulationAttic Insulation | $1,500 – $6,100 |
| Complete home upgrade | $31,300 – $78,850 |
Totals sum one representative project per category, localized to Hilton Head Island (hot climate) using local labor price levels and permit fees. Most homeowners phase these over years — use it for planning, not a quote.