Basic
$534 – $1,601 each
White fiberglass double-hung with low-E double-pane glass, tilt-in sashes and half screen, installed with interior trim

Replace one standard-size fiberglass window (double-hung or similar), installed.
Fiberglass Window in Washington, District of Columbia typically costs $628 to $1,884 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Washington are 5.0% higher than the national average for fiberglass window.
National average: $600 – $1,800 each
$534 – $1,601 each
White fiberglass double-hung with low-E double-pane glass, tilt-in sashes and half screen, installed with interior trim
$628 – $1,884 each
Fiberglass double-hung with low-E argon glass and warm-edge spacers, tilt sashes, full screen, tan frame, foam-sealed
$785 – $2,355 each
Fiberglass double-hung with dark exterior and paintable interior, low-E argon glass, grilles between the glass, full screen
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $284 – $851 | each |
| Labor | labor | $218 – $655 | each |
| Supplies & Other | supplies | $76 – $227 | each |
| Equipment & Disposal | equipment | $50 – $151 | each |
Connect with local fiberglass window contractors in Washington for personalized quotes based on your specific project.