example photo of a replacement frame and sash set
Photo: Courtesy of Marvin
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Replacement Options: Frame-and-Sash Insert

A frame with factory-fitted sashes. You keep existing sill and jambs.

Pro: Easiest to install. Trim not affected. Goes in from the inside.

Con: Most expensive option. Frame reduces size of window opening by up to 1 inch on all sides.

Shown: Marvin Ultimate Insert
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