Basic
$433 – $1,039 each
Solid knotty alder stile-and-rail 3-panel door, unfinished, standard hinges and latch fitted

Supply and install one solid (or solid-core with alder veneer) knotty or clear alder interior door, pre-hung or slab, including hardware and fitting.
Solid Alder Interior Doors in Wilmington, Delaware typically costs $509 to $1,223 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Wilmington are 4.0% higher than the national average for solid alder interior doors.
National average: $500 – $1,200 each
$433 – $1,039 each
Solid knotty alder stile-and-rail 3-panel door, unfinished, standard hinges and latch fitted
$509 – $1,223 each
Select-grade knotty alder 3-panel stile-and-rail door with fewer, smaller knots, unfinished, hinges and latch fitted
$637 – $1,529 each
Solid clear alder 3-panel stile-and-rail door with smooth even grain, unfinished, heavier hinges and latch fitted
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $220 – $523 | each |
| Labor | labor | $192 – $467 | each |
| Supplies & Other | supplies | $58 – $140 | each |
| Equipment & Disposal | equipment | $39 – $93 | each |
Labor costs in Wilmington run proportionally higher than materials, which may favor material-heavy solutions.
Connect with local solid alder interior doors contractors in Wilmington for personalized quotes based on your specific project.