Can You Reseal a Window?

Double-Pane Windows

• Double-paned windows consist of a pair of glass panels contained in a shared frame. Double-pane window seals can loosen due to poor sealing, the elements or wear and tear. Double-pane windows can typically be resealed by removing the old seal on both panes and applying silicone caulk to create new seals around the panes and frame. Resealing your double-paned window will allow you to better insulate and sound-proof your home.

Storm Windows

• Storm windows are types of windows that mount inside or outside of a home's main windows. An exterior storm window is especially susceptible to seal damage during heavy storms. A storm window seal can be resealed by removing the damaged seal and applying caulk around the joints between the main house window and the storm window. Damaged plastic on the storm window should also be removed, and new plastic cut and fitted over the frame to seal off any holes or other openings. A properly sealed storm window will protect your main windows from bearing the brunt of rain and strong winds that can occur during heavy storm conditions.

Metal-Frame Windows

• Metal-frame windows consist of glass panes contained in a metal frame. The rubber seals that hold the glass can loosen or wear over time. Metal-frame windows can be resealed by removing the old rubber seal and positioning a new seal in the frame groove. Filling any gaps in the window casing, where the frame meets the wall, with caulk will also help seal the windows and prevent insulation issues.

Maintenance

• Resealing windows is an easier process if the windows are checked for any gaps or openings on a frequent basis. Cracks can grow over time, increasing the chances of interior damage in your home due to excess moisture. The glass in the window pane can also crack due to pressure if left improperly sealed, and gaps between the frame and wall, if large enough, can cause the window to loosen or even dislodge from the wall. You can often personally reseal your windows if problems are detected, or a professional window installer can reseal the windows to restore their full functionality.