Basic
$73 – $195 per sq ft
Cultured onyx top in a stock light pattern, integrated oval bowl, square edge, set and caulked, plumbing reconnected

Supply and install a cast cultured onyx vanity top or countertop (prefab or custom molded, integrated bowl) including set, caulk and basic plumbing reconnect.
Cultured Onyx Countertop in Seattle, Washington typically costs $86 to $229 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Seattle are 19.0% higher than the national average for cultured onyx countertop.
National average: $75 – $200 per sq ft
$73 – $195 per sq ft
Cultured onyx top in a stock light pattern, integrated oval bowl, square edge, set and caulked, plumbing reconnected
$86 – $229 per sq ft
Cultured onyx in a richer translucent veined pattern, integrated bowl, matching backsplash, eased edge, plumbing reconnected
$107 – $286 per sq ft
Custom-molded cultured onyx with deep translucent veining, integrated rectangular bowl, ogee edge, backsplash, plumbing reconnected
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $35 – $94 | sq ft |
| Labor | labor | $35 – $94 | sq ft |
| Supplies & Other | supplies | $9.36 – $25 | sq ft |
| Equipment & Disposal | equipment | $6.24 – $17 | sq ft |
See how cultured onyx countertop looks in each style, with photos of real projects by working designers.
Seattle design responds to gray light and wet climate: warm wood, large windows, natural texture and a clutter-free plan. Japandi, the Japanese-Scandinavian blend, is widely used locally and often paired with Northwest craft.
Work by Seattle designers first, then the styles Seattle draws from.
Modern kitchen
Photo: Dorling Design Studio · Profile
Scandinavian kitchen
Photo: Dorling Design Studio · Profile
Farmhouse (Modern Farmhouse) kitchen
Photo: Dorling Design Studio · Profile
Modern kitchen
Photo: AAHA Studio · Profile
Modern kitchen
Photo: Alexandra Peck Design · Profile
Modern kitchen
Photo: Debra Butler Design Studio · Profile
Modern kitchen: Colorado Springs Historic Kitchen Remodel
Photo: E+E Design Consulting · Profile
Modern kitchen
Photo: Emily Roose Interiors · Profile
Modern kitchen
Photo: Guimar Urbina Interiors · Profile
Labor costs in Seattle run proportionally higher than materials, which may favor material-heavy solutions.
Connect with local cultured onyx countertop contractors in Seattle for personalized quotes based on your specific project.