Can the sash in a fixed ProLine casement be replaced?
The February 2007 vintage cutoff applies specifically to fixed ProLine casements. Identify the product before proposing a sash replacement.
By Scott Dunfield · Product guidance reviewed October 2026
The answer
February 2007 is the key vintage cutoff. The local hail guide identifies fixed ProLine casements manufactured from February 2007 onward as candidates for sash replacement. Earlier fixed ProLine casements require full-unit replacement.
The 20-year rule, frame condition and replacement availability still apply. This guidance is specifically for fixed casement windows, not every fixed window or patio-door panel.
Start with the existing product.
Send overall interior and exterior photos, a readable product label or serial number if available, and close-ups of the area in question. Identify the room and elevation so the photos can be matched to the correct opening.
Use the window identification photo checklist to get started. For a storm project, the hail documentation guide explains what information to collect.
Product identification, frame condition and current replacement availability need to be reviewed together. These pages explain product and local service guidance; they do not determine an insurance company’s coverage decision.
Related replacement questions
- Can hail-damaged aluminum cladding be replaced by itself?
- What is the local 20-year sash replacement rule?
- Can a younger window still need full replacement?
- Which older products were affected by permanent service eliminations?
Have an opening you want to discuss?
Send Scott your photos and question. You do not need an active order or an existing working relationship.
Ask about this window →Source: Pella product-change bulletins and Pella Windows & Doors of Omaha/Lincoln replacement guidance, as summarized in the contractor resource FAQs. Guidance reviewed with Scott, October 2026.
