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A simple sash or stop repair can often restore a window to good working order. If a sash is temporarily stuck because of high humidity, a change of weather may correct the problem. If a sash moves reluctantly, clean the sash channels. Windows that have been painted shut require a little more effort but can be opened, too. If a window sticks, chisel any dirt or large globs of paint from the channel and then sand it smooth with sandpaper wrapped around a wood block. It also helps to coat the surface of the channel with wax so the sash will move easily. If the window binds against the channel, widen the channel by inserting a wood block inside the channel at the point that binds and tapping it with a hammer. | 1. Score the painted edges of the sash with a utility knife. Work a wide putty knife between the sash and frame. Tap the knife with a mallet. |  | | 2. From outside, wedge a prybar between the sill and sash; work alternately at each corner so the sash moves up evenly. Protect the sill with a wood block. | 
| | 3. Chisel any built-up paint off the edges of the sash, stops, and parting strip. Sand the edges smooth, and apply paraffin to them. | 
| Copyright Sunset Publishing Corporation
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