How to Repair Sash Windows

Using a putty knife, slide each new glazier's point on the glass and push it point first into the wood sash. Plant at least two points, evenly spaced, on each side of the pane. For large panes, the spacing between the points should not exceed 12 inches.

TOH Tip: "On warm days, lubricate the tip of the putty knife with linseed oil so that it doesn't pull out the glazing compound."
—John Dee