Basic
$1,667 – $4,167 each
White vinyl 3-lite bay, fixed center with double-hung flankers, dual-pane low-E glass, laminate seat and head boards

Replace a standard 3-lite vinyl/wood bay window, unit and installation.
Replacement Bay Window in Portland, Maine typically costs $1,961 to $4,903 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 replacement bay window.
National average: $2,000 – $5,000 each
$1,667 – $4,167 each
White vinyl 3-lite bay, fixed center with double-hung flankers, dual-pane low-E glass, laminate seat and head boards
$1,961 – $4,903 each
Heavier white vinyl 3-lite bay, same layout, low-E argon glass, oak-veneer seat and head boards, insulated platform
$2,451 – $6,128 each
Vinyl 3-lite bay with a dark bronze laminated exterior, same layout, low-E argon glass, hardwood seat and head boards, insulated platform
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $873 – $2,183 | each |
| Labor | labor | $700 – $1,750 | each |
| Supplies & Other | supplies | $233 – $582 | each |
| Equipment & Disposal | equipment | $155 – $388 | each |
Connect with local replacement bay window contractors in Portland for personalized quotes based on your specific project.