- Remove the old putty from around the window pane with a chisel or putty knife. Remove small pieces of putty rather than long strips. Long pieces may splinter and pull wood when removed.
- Loosen hard putty with a heat gun or other heat source. Heat will soften the putty and lessen the chance of damaging the frame. Continue to use the putty knife and remove all the putty.
- Remove all the glazier points as the putty is removed. Glazier points are the small triangles that hold the glass in place to the frame. Grip the glazier points with needle-nose pliers and pull out.
- Smooth out any rough spots that remain in the frame. Use the putty knife or a flat head screwdriver to remove any attached putty.
- Apply linseed oil around all the edges of the frame. Use a narrow paint brush to coat the wood frame edge and let the oil soak into the frame. Linseed oil keeps the new putty from drying out when you are replacing the pane.
Things You Will Need
- Duct tape
- Putty knife
- Heat gun
- Linseed oil
- Easily lift out the old pane by placing masking tape or duct tape on the glass. Fold one end of the tape over to make a small tab large enough to grab and lift out the glass.
- Be patient while removing a window pane that is still intact to prevent breaking the glass while removing the pane from the window frame.