How to Replace a Sash
If you have a window with a broken pane or that does not open and close properly, you may have to replace the sash. A window sash is comprised of the glass pane and the frame around it. The framing could be wood, aluminum or vinyl. On most windows, there are two sashes: the upper sash and the lower sash. On some windows, only the lower sash is movable, while on others both sashes can move. Does this Spark an idea?
Things You'll Need
- Tape measure
- Notepad
- Replacement sash kit
- Pry bar
- Flathead screwdriver
- Screw gun
- Utility knife
- Putty knife
Instructions
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1
Measure the existing window sash with a tape measure, writing down the measurements from inside the jambs. The jambs are located on all four sides: two side jambs, one head jamb and one sill. Purchase a sash replacement kit that fits these measurements.
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2
Pull the lower sash up and twist it out of the jambs. Remove the stops in the jambs with a pry bar or flathead screwdriver. Once the lower sash is free and the stops are removed, take the upper sash out of the window.
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3
Unfasten the side jambs with a screw gun or pry bar. There may be caulking to contend with as well; score it with a utility knife and then remove the jambs. Clean the rough opening by scraping a putty knife against the opening.
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4
Attach the new jamb brackets to the opening using a screw gun. Install the jamb liners and hardware according to the replacement kit's instructions. This will vary from manufacturer to manufacturer, but it is usually a straightforward process. Mount any specialty hardware according to the enclosed instructions if applicable.
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5
Slide the upper sash into place. It will go in the jamb track closest to the exterior of the home. Then slide the lower sash into the jamb track closest to the interior of the home. Fasten any stops included with the kit, following the manufacturer's instructions.
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