If it becomes necessary to do a garage door window replacement, you have a relatively easy task at hand. The steps to replace these windows depends on whether your garage door is made of wood or steel.
Garage Door Window Replacement on Steel Doors
Replacing the glass or Plexiglas windows found on steel garage doors is a fairly simple undertaking. Thin plastic lips hold the pain of glass in place. Use a putty knife to gently pry these plastic lips off and then gently remove the glass panel. Most hardware stores can cut a pane of glass or Plexiglas to the size you need. Once you have the new glass, insert it in the panel, sealing it with a thin bead of caulk around the edges. Then reattach the lips using liquid cement.
Garage Door Window Replacement on Wooden Doors
Replacing the windows in a wood door is also an easy process. Start by removing the wooden frame that holds the window in. This can be done using a sharp edge such as a putty knife. Remove the old window and obtain a replacement. Place the new window in the pane and seal by applying a thin bead of caulk around the edges. Finally, reattach the wood frame using a small amount of wood putty.