doors windows frames
Fiberglass window frame
Pultruded fiberglass frames. Dimensionally stable across temperature swings; paintable; long service life. Niche but growing residential spec.
Cost tier
PREMIUM
Cost / sqft
$70–$160
Install
specialty
Durability
premium
Maintenance
low
Moisture
excellent
Cost notes
Service life 50+ years. Marvin Integrity + Pella Impervia.
Aesthetic
- Finish: smooth painted
- Color range: wide factory color range
- Visual weight: light
Climate suitability
✓ Hot-humid
✓ Hot-dry
✓ Mixed-humid
✓ Mixed-dry
✓ Cold
✓ Arctic
Source
Architectural Graphic Standards — Architectural Graphic Standards (Ramsey/Sleeper) — Materials chapter
Tags: fiberglass, window, stable, premium