How can I replace a cracked glass in an external door?

Mostly the glass is held in with beading from the inside with panel pins or glued in manufacture. The beading has to be removed, use a chisel to prise it away from the door, gently does it working along the length of any one piece. Remove all the beading. The glass may be held in with sprigs [small pins or nails] remove. The glass should have been put in with putty on the door face. Knock out the glass and then remove ALL the putty. Measure from edge to edge where the glass was and replace with new adding a small amount of putty to the inner face of the door [not the side] of where the glass fits. Press firmly the glass to the door and replace beading. Remove excess putty from the outside. Be prepared to replace the beading if it breaks or had to be cut out because it was part of the door molding. Hammer the pins so that the points are level with the underside of the beading. Place the beading in position. When hammering the pins in place a thin rigid sheet between the glass and the hammer and slide the hammer sharply on to the pin. This stops damage to the glass

crumple
August 2010