Home project costs in Kahului, HI
Every project we cover, priced for the Kahului-Wailuku metro with local BLS wages and BEA price levels.
Kahului sits 13th of 300 metros on BEA's regional price index, at 109.4 where the US is 100. Goods, the index that drives materials, is 111.6 (2nd). The metro has about 73,750 jobs in BLS's May 2025 survey.
Not every job moves the same way here: 38 of the 38 projects price above the national midpoint and 0 below. Concrete driveway (+56%), gravel driveway (+50%) and asphalt driveway (+46%) sit highest, and attic insulation (+12%), kitchen backsplash (+14%) and shower pan (+15%) sit lowest. Labor-heavy work tracks local wages; materials-heavy work tracks the goods index.
Weather: the nearest NOAA station (Kahului Ap, 3 miles away) shows a January average low of 64°F, a July average high of 89°F and 16 inches of precipitation a year (1991-2020 normals). For concrete pours, the workable months are October through July; for exterior installation, they are October through July.
What local trades earn in Kahului
| Trade | Projects using it | 25th pct | Median | 75th pct | US median | Ratio |
|---|---|---|---|---|---|---|
| Construction laborers (47-2061) | 25 | $28.72 | $38.35 | $47.03 | $22.66 | 1.69 |
| Carpenters (47-2031) | 23 | $30.77 | $39.47 | $48.89 | $29.12 | 1.36 |
| Operating engineers and other construction equipment operators (47-2073) | 10 | $33.42 | $60.09 | $62.07 | $28.78 | 2.09 |
| Plumbers, pipefitters and steamfitters (47-2152) | 7 | $28.92 | $37.31 | $50.02 | $30.67 | 1.22 |
| Cement masons and concrete finishers (47-2051) | 6 | $36.41 | $50.22 | $54.26 | $27.41 | 1.83 |
| Electricians (47-2111) | 6 | $29.05 | $47.34 | $57.68 | $30.38 | 1.56 |
| Tile and stone setters (47-2044) | 5 | $23.00 | $30.93 | $38.87 | $26.77 | 1.16 |
| Roofers (47-2181) | 5 | $22.97 | $29.52 | $37.64 | $26.65 | 1.11 |
Concrete & paving in Kahului
Across these 7 projects, Kahului averages +45% against national midpoints. Concrete driveway is highest at +56% and paver patio lowest at +33%.
| Project | Size | Kahului range | vs. US |
|---|---|---|---|
| Concrete slab cost in Kahului | 400 sq ft | $3,500 – $7,100 | +39% |
| Concrete driveway cost in Kahului | 600 sq ft | $5,500 – $14,600 | +56% |
| Asphalt driveway cost in Kahului | 600 sq ft | $4,250 – $11,000 | +46% |
| Gravel driveway cost in Kahului | 1,000 sq ft | $3,800 – $15,200 | +50% |
| Paver patio cost in Kahului | 300 sq ft | $4,000 – $7,250 | +33% |
| Concrete patio cost in Kahului | 300 sq ft | $1,700 – $5,900 | +45% |
| Stamped concrete cost in Kahului | 400 sq ft | $4,600 – $11,700 | +45% |
Decks & outdoor in Kahului
Across these 2 projects, Kahului averages +27% against national midpoints. Composite deck is highest at +30% and wood deck lowest at +25%.
| Project | Size | Kahului range | vs. US |
|---|---|---|---|
| Wood deck cost in Kahului | 300 sq ft | $9,450 – $18,900 | +25% |
| Composite deck cost in Kahului | 300 sq ft | $15,700 – $31,400 | +30% |
Building & additions in Kahului
The 2 jobs here average +30% versus the US in Kahului, from +30% (home addition) to +30% (detached garage).
| Project | Size | Kahului range | vs. US |
|---|---|---|---|
| Detached garage cost in Kahului | 576 sq ft | $37,700 – $75,600 | +30% |
| Home addition cost in Kahului | 300 sq ft | $49,400 – $99,900 | +30% |
Doors & windows in Kahului
Across these 5 projects, Kahului averages +20% against national midpoints. Patio door is highest at +24% and front door lowest at +18%.
| Project | Size | Kahului range | vs. US |
|---|---|---|---|
| Garage door cost in Kahului | 1 door | $860 – $4,400 | +19% |
| Storm door cost in Kahului | 1 door | $430 – $1,150 | +21% |
| Front door cost in Kahului | 1 door | $630 – $2,900 | +18% |
| Window replacement cost in Kahului | 10 windows | $5,450 – $17,700 | +19% |
| Patio door cost in Kahului | 1 door | $720 – $7,450 | +24% |
Fencing in Kahului
Across these 4 projects, Kahului averages +28% against national midpoints. Chain-link fence is highest at +38% and vinyl fence lowest at +20%.
| Project | Size | Kahului range | vs. US |
|---|---|---|---|
| Wood fence cost in Kahului | 150 linear ft | $3,950 – $9,650 | +27% |
| Vinyl fence cost in Kahului | 150 linear ft | $5,350 – $11,100 | +20% |
| Chain-link fence cost in Kahului | 150 linear ft | $2,000 – $8,650 | +38% |
| Aluminum fence cost in Kahului | 150 linear ft | $4,850 – $14,300 | +26% |
Roofing & exterior in Kahului
Across these 5 projects, Kahului averages +21% against national midpoints. Vinyl siding is highest at +30% and attic insulation lowest at +12%.
| Project | Size | Kahului range | vs. US |
|---|---|---|---|
| Roof replacement cost in Kahului | 2,000 sq ft of roof | $7,150 – $14,500 | +16% |
| Metal roof cost in Kahului | 2,000 sq ft of roof | $12,400 – $38,500 | +19% |
| Gutters cost in Kahului | 160 linear ft | $1,650 – $5,200 | +25% |
| Vinyl siding cost in Kahului | 2,100 sq ft of wall | $10,900 – $32,700 | +30% |
| Attic insulation cost in Kahului | 1,000 sq ft | $1,150 – $4,500 | +12% |
Kitchen & bath in Kahului
The 5 jobs here average +18% versus the US in Kahului, from +14% (kitchen backsplash) to +23% (kitchen cabinets).
| Project | Size | Kahului range | vs. US |
|---|---|---|---|
| Kitchen cabinets cost in Kahului | 25 linear ft | $5,050 – $17,400 | +23% |
| Shower pan cost in Kahului | 1 pan | $1,100 – $3,200 | +15% |
| Kitchen remodel cost in Kahului | 120 sq ft | $21,500 – $36,600 | +16% |
| Bathroom remodel cost in Kahului | 45 sq ft | $5,700 – $28,400 | +22% |
| Kitchen backsplash cost in Kahului | 30 sq ft | $340 – $1,700 | +14% |
Landscaping & drainage in Kahului
The 5 jobs here average +34% versus the US in Kahului, from +22% (sod installation) to +41% (inground pool).
| Project | Size | Kahului range | vs. US |
|---|---|---|---|
| French drain cost in Kahului | 60 linear ft | $840 – $2,950 | +41% |
| Retaining wall cost in Kahului | 200 sq ft of wall face | $9,750 – $17,300 | +32% |
| Sod installation cost in Kahului | 1,500 sq ft | $1,850 – $4,000 | +22% |
| Sprinkler system cost in Kahului | 4,000 sq ft of lawn | $5,450 – $13,600 | +36% |
| Inground pool cost in Kahului | 450 sq ft | $50,900 – $159,000 | +41% |
Flooring & interior in Kahului
Across these 3 projects, Kahului averages +22% against national midpoints. Laminate flooring is highest at +27% and tile flooring lowest at +16%.
| Project | Size | Kahului range | vs. US |
|---|---|---|---|
| Hardwood flooring cost in Kahului | 500 sq ft | $6,750 – $15,200 | +22% |
| Laminate flooring cost in Kahului | 500 sq ft | $2,600 – $8,800 | +27% |
| Tile flooring cost in Kahului | 200 sq ft | $2,900 – $11,500 | +16% |
Kahului against its nearest metros
Taking every project together, Kahului comes out +28% versus the national midpoint. Of the 6 closest metros, 1 prices higher and 5 lower. Salinas is the lowest at +11% (2375 miles) and Honolulu the highest at +31% (110 miles). These are unweighted averages of the midpoints, a rough guide to overall price level rather than a number for any one job.
| Metro | Distance | Price index | Goods index | All projects vs. US |
|---|---|---|---|---|
| Kahului, HIthis page | 109.4 | 111.6 | +28% | |
| Honolulu, HI | 110 miles | 111.0 | 111.6 | +31% |
| Santa Rosa, CA | 2340 miles | 107.8 | 105.2 | +15% |
| Santa Cruz, CA | 2350 miles | 109.9 | 105.2 | +12% |
| San Francisco, CA | 2355 miles | 115.6 | 108.5 | +26% |
| Napa, CA | 2370 miles | 112.6 | 105.2 | +15% |
| Salinas, CA | 2375 miles | 109.0 | 105.2 | +11% |