This week, our Jill of All Trades, Jill Washburn, shows us how to replace a broken pane of glass in a 15-light door. It is a technique that applies to countless doors and windows.
First, you'll have to remove the broken pane of glass. To do that, you'll have to pry off the narrow moldings that hold the glass in. Often, these have multiple layers of paint on them. You'll most likely have to cut through the paint with a razor knife.
If that doesn't work, you'll want to try hammering a putty knife in behind the molding to "break" the paint and loosen the molding. It's easier than it sounds. Just start conservatively, so that you don't cause any additional damage to the glass or the door.