Many window frames are made of wood. The most common problem
with window frames is sticking caused by: • Broken sash cords
New paint is a major cause of windows sticking. Sticking of
freshly painted windows can be prevented by leaving the window
slightly open while painting. As soon as the paint dries, slide
the window up and down. Do not wait too long because paint
hardens as it ages. If the window has been painted shut for a
while, it will be difficult to open. Use a putty knife to cut
through the paint seal. Never pry the window open with a chisel
or pry bar. Even if you use a piece of wood to protect the sill,
the window sash will be dented. Windows that are badly stuck may
have to be removed from the frame. The sliding part of the
window (sash) is held in place by two strips of wood called
stops. Carefully pry up the stops. Remember, you want to use
these stops again. A little patience saves buying, cutting,
fitting, and painting a new piece of wood. Don’t drive the nails
back out through the stop after