Basic
$500 – $1,500 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 Portland, Maine typically costs $588 to $1,765 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Portland are 1.0% lower than the national average for fiberglass window.
National average: $600 – $1,800 each
$500 – $1,500 each
White fiberglass double-hung with low-E double-pane glass, tilt-in sashes and half screen, installed with interior trim
$588 – $1,765 each
Fiberglass double-hung with low-E argon glass and warm-edge spacers, tilt sashes, full screen, tan frame, foam-sealed
$735 – $2,206 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 | $262 – $786 | each |
| Labor | labor | $210 – $630 | each |
| Supplies & Other | supplies | $70 – $210 | each |
| Equipment & Disposal | equipment | $47 – $140 | each |
Connect with local fiberglass window contractors in Portland for personalized quotes based on your specific project.