This story shows you how to replace a corner joint in a metal frame.
Metal storm and screen windows are frequent troublemakers, partly because they are often of poor quality and may have been hastily installed. You can sometimes -- but not always -- purchase replacement parts; manufacturers are often regional and may be out of business. For a tighter seal consider installing better-quality storms.
1 or 2 hours to make most repairs
Hammer, tape measure, utility knife, screwdriver, putty knife
General carpentry skills
Remove and inspect storm sashes. Contact manufacturers for parts as needed.
Screening and glass as needed
Metal storm or screen sashes often loosen at the corners. Many joints simply pry apart; if needed use a putty knife to work the joint open. With some joints the fasteners may be held with a screw. Others are held with a crimp or two in the frame that you will have to drill out.