Basic
$1,667 – $4,585 each
Two-panel fiberglass slider with white frames, clear low-E glass, standard handle and latch, insect screen
Install a two-panel fiberglass sliding patio door in an existing opening, including removal of old door, frame, glass and trim.
Fiberglass Sliding Door in Portland, Maine typically costs $1,961 to $5,394 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 sliding door.
National average: $2,000 – $5,500 each
$1,667 – $4,585 each
Two-panel fiberglass slider with white frames, clear low-E glass, standard handle and latch, insect screen
$1,961 – $5,394 each
Two-panel fiberglass slider with low-E argon glass, tandem rollers, keyed multi-point lock and fresh interior and exterior trim
$2,451 – $6,743 each
Two-panel fiberglass slider with dark exterior, factory wood-grain interior, low-E argon glass with grilles, heavier handle set
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $873 – $2,347 | each |
| Labor | labor | $700 – $1,980 | each |
| Supplies & Other | supplies | $233 – $640 | each |
| Equipment & Disposal | equipment | $155 – $427 | each |
Connect with local fiberglass sliding door contractors in Portland for personalized quotes based on your specific project.