Home renovation costs in Hawaii.
Hawaii runs about 48% above the national average for construction in 2026. Here is what the seven most-requested home projects actually cost locally — and how to turn a range into a real quote.
In 2026, a bathroom remodel in Hawaii costs $13,300–$26,600, a kitchen remodel $21,500–$62,200, and a roof replacement $11,800–$29,600. Overall, Hawaii construction prices are about 48% above the national average (index 1.48).
2026 cost table for Hawaii
| Project | 2026 range in HI | Typical |
|---|---|---|
| Bathroom remodel | $13,300 – $26,600 | $20,000 |
| Kitchen remodel | $21,500 – $62,200 | $41,800 |
| Roof replacement | $11,800 – $29,600 | $20,700 |
| Deck / patio | $6,700 – $17,800 | $12,200 |
| Solar install | $22,200 – $41,400 | $31,800 |
| Room addition | $71,000 – $162,800 | $116,900 |
| Interior painting | $3,300 – $9,600 | $6,400 |
Illustrative 2026 ranges: national mid-range bands × the Hawaii cost-of-construction index (1.48). Your quote depends on site conditions, materials, and local demand — see how we price.
What drives costs in Hawaii
Everything ships in — Hawaii is the most expensive state to build in by a wide margin.
Budget roughly 48% over national guide prices when planning here. The premium shows up mostly in labor line items — demolition, framing, tile-setting, and electrical — while big-box material prices stay close to national.
For context: the cheapest state in our index is Mississippi (0.84) and the most expensive is Hawaii (1.48). Hawaii ranks #1 of 51. Try the cost calculators to adjust any project for size and finish level.
How Hawaii compares in the West
| State | Cost index | Typical bathroom remodel |
|---|---|---|
| Hawaii | 1.48 | $20,000 |
| California | 1.32 | $17,800 |
| Alaska | 1.27 | $17,100 |
| Washington | 1.19 | $16,100 |
| Oregon | 1.14 | $15,400 |
| Colorado | 1.12 | $15,100 |
| Nevada | 1.06 | $14,300 |
Get real Hawaii quotes.
State averages get you close — local quotes get you exact. Up to 3 vetted HI pros, free, no obligation.
Get 3 free quotes →Frequently asked
How much does a bathroom remodel cost in Hawaii?
A typical bathroom remodel in Hawaii runs $13,300 to $26,600 in 2026, with most homeowners landing near $20,000. Size, finish tier, and moving plumbing drive where you fall in that range.
Is Hawaii an expensive state to renovate in?
Hawaii runs about 48% above the national average for construction in 2026 (cost index 1.48, ranked #1 of 51). Everything ships in — Hawaii is the most expensive state to build in by a wide margin.
What does a kitchen remodel cost in Hawaii in 2026?
Expect $21,500 to $62,200 for a full kitchen remodel in Hawaii, and $11,800 to $29,600 for a roof replacement. See the full table on this page for all seven major projects.
How do I get an exact price in Hawaii?
These are illustrative 2026 ranges from Rafter's methodology — national mid-range cost bands adjusted by Hawaii's cost-of-construction index. For an exact number, request up to 3 free quotes from vetted local pros; quotes are free and carry no obligation.
Ready for a real Hawaii number?
Get up to 3 free quotes from vetted local pros — free, no obligation.
Get 3 free quotes →