Whole-home
What does it cost to fully upgrade a home in Honolulu, HI? (2026)
Honolulu · full-home upgrade
$34,050 – $85,450
Estimated total to modernize the major systems of a typical Honolulu home, localized to your area.
Few homeowners do everything at once — but if you're planning a full modernization in Honolulu, here's how the major projects add up. Each line is a localized 2026 estimate; click any project for the full breakdown.
| Project | Honolulu 2026 range |
|---|---|
| HVACFurnace Replacement | $4,150 – $7,400 |
| RoofingAsphalt Shingle Roof Replacement | $6,600 – $13,500 |
| Water HeatersTank Water Heater Replacement | $1,350 – $3,450 |
| WindowsVinyl Window Replacement | $5,600 – $16,500 |
| PaintingInterior House Painting | $4,350 – $13,100 |
| FlooringHardwood Flooring Installation | $6,450 – $16,150 |
| PlumbingWhole House Repipe | $3,900 – $8,800 |
| InsulationAttic Insulation | $1,650 – $6,550 |
| Complete home upgrade | $34,050 – $85,450 |
Totals sum one representative project per category, localized to Honolulu (hot climate) using local labor price levels and permit fees. Most homeowners phase these over years — use it for planning, not a quote.