Basic
$438 – $1,071 each
Vinyl hopper basement window with low-E double-pane glass and screen, set in foam and sealant, exterior caulked, basic trim

Replace one standard (non-egress) basement hopper or slider window in an existing foundation opening, including removal, sealing and trim.
Install Basement Window in Seattle, Washington typically costs $515 to $1,260 each 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 install basement window.
National average: $450 – $1,100 each
$438 – $1,071 each
Vinyl hopper basement window with low-E double-pane glass and screen, set in foam and sealant, exterior caulked, basic trim
$515 – $1,260 each
Vinyl hopper basement window with low-E double-pane glass and screen, foam and sealant set, aluminum-wrapped exterior trim
$644 – $1,574 each
Welded heavier vinyl hopper basement window with low-E argon glass and screen, foam and sealant set, PVC exterior trim, interior return
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $210 – $515 | each |
| Labor | labor | $212 – $516 | each |
| Supplies & Other | supplies | $56 – $137 | each |
| Equipment & Disposal | equipment | $37 – $92 | each |
Small basement window set in a concrete foundation below shingle siding
Find a pro to do thisLabor costs in Seattle run proportionally higher than materials, which may favor material-heavy solutions.
Connect with local install basement window contractors in Seattle for personalized quotes based on your specific project.