As each line nears its end, Perry lifts a sash weight over the side.
Perry does a quick scissors over the checker door, shoves an empty tub in place and unclips a sash weight, and then, with another scissors, muscles 50 pounds of tub and line astern.
"Our first challenge was to match the color and configuration of the windows previously installed in the building." Next, the old sashes were removed, followed by the sash weights from the jamb pockets.
* Old double-hung windows have compartments on each side for old-time pulleys and sash weights. New double-hung windows have more compact counterweight systems.