Basic
$2,380 – $5,712 each
Fiberglass bay with fixed center and two double-hung flankers, white frames, low-E double-pane glass, insulated seat, cable support, primed boards
Replace or install one fiberglass bay window unit (three-panel projection), including installation, trim and support.
Fiberglass Bay Window in Portland, Oregon typically costs $2,800 to $6,720 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 15.0% higher than the national average for fiberglass bay window.
National average: $2,500 – $6,000 each
$2,380 – $5,712 each
Fiberglass bay with fixed center and two double-hung flankers, white frames, low-E double-pane glass, insulated seat, cable support, primed boards
$2,800 – $6,720 each
Fiberglass bay with fixed center and two double-hung flankers, tan frames, low-E argon glass, insulated seat, cable support, primed boards
$3,500 – $8,400 each
Fiberglass bay with fixed center and two double-hung flankers, dark exterior frames, low-E argon glass, wood-look interior finish, insulated seat, cable support
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $1,181 – $2,835 | each |
| Labor | labor | $1,094 – $2,625 | each |
| Supplies & Other | supplies | $315 – $756 | each |
| Equipment & Disposal | equipment | $210 – $504 | each |
Labor costs in Portland run proportionally higher than materials, which may favor material-heavy solutions.
Connect with local fiberglass bay window contractors in Portland for personalized quotes based on your specific project.