Blown Window Sill

A blown window seal occurs when the seal between the glass panes of a double-pane or insulated window fails, allowing air, moisture, or condensation to enter. This can result in reduced energy efficiency, as heat or cold is transferred more easily between the interior and exterior. It can also lead to condensation, a foggy appearance, and potential mold growth. Blown window seals affect the aesthetics of the home, reduce sound insulation, and may cause additional damage if left untreated. Homeowners should address the issue promptly by either replacing the affected window, replacing the glazing in the window, or seeking professional assistance for seal repair. Taking action helps restore energy efficiency, improve the window's appearance, and maintain the home's value.