How to Take Out a Broken Window Sash

Removing the sash is an important step in many widow repairs.

Making window repairs can be intimidating. You know it will improve security and make your home more energy-efficient but you're not really sure where to start. Before repairs can be made to the inner workings of your windows, the sash will need to be removed. Start by removing and disposing of any broken glass. Wear gloves and use pliers to loosen stubborn pieces.

Things You'll Need

• Work gloves
• Pliers
• Utility Knife
• Hammer
• Flat pry bar
• Screwdriver

Instructions

Removing Wooden Sashes

1. Locate the seam between the inside window stop and the frame of the window. The window stop is the flat, vertical molding along the side of the window. If the window has been painted, run a utility knife along this seam to separate the molding from the frame.

2. Pry the inside stop loose from the frame. Tap a small, flat pry bar underneath the edge of the molding with a hammer. Starting at the bottom, gently pry the stop loose from the frame, working your way up the side of the window. Move the pry bar up a few inches and repeat until the stop molding comes loose from the frame. Do the same for the other side of the window.

3. Remove the casing from the window sides to access the weights. Casing is the trim framing the window that covers the gap between the window and wall frame. Pry it loose using the same flat bar technique as for the stop molding. Untie the ropes holding the bottom sash to the window weights and set them aside.
   Lift the bottom sash out of the frame.

4. Pry the outside stop loose as well if you intend to take out the top sash. Repeat the same process as for the bottom sash. Remove any broken glass from the sash before you begin.

Vinyl, Aluminum and Steel Sashes

1. Remove the screws in the stop strip along each side of the window. The stop strip is the flat metal or vinyl piece that runs vertically in front of the window sash. Windows vary; typically there will three or more screws.

2. Lift the lower sash from the window. Do not pull too hard. Release the metal strap spring attached to each edge of the sash. Not all windows have them; generally they are attached with a small metal ring with a screw running through its center into the side of the window sash.

3. Release the spring gently. It should pull up to the opening along the side that houses the coil for the spring. These are self-contained and usually require no maintenance.

4. Remove the top sash by removing any screws in the stop blocks. Again, frames vary; typically there will be a small stop block under each corner of the upper sash with a single screw. Consult your manufacturer's website for more specific instructions.

References

• Windows and Doors: Newton Conn, Guild of Master Craftsman, 2006
• The Complete Guide to Windows and Doors: Creative Publishing International, 2002
• Ron Hazelton: Window Replacement