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Repairs for Vertical Cracks on Windows

Damage to windows by weather, pets and people often result in vertical cracks. Cracked windows allow hot and cold drafts into a house, causing an increase in electrical or natural gas usage. Unsightly cracks ultimately continue to spread if left unchecked, eventually breaking the window and creating a safety issue. The only permanent way to fix vertical cracks in a window is by replacing the whole windowpane; however, some temporary solutions will help to prevent further cracking.
  1. Tape

    • Using tape to seal a window crack is an inexpensive way to cover a vertical crack in a window. Several types of tape work to block air drafts, including clear packing tape, duct tape and masking tape. Duct tape is a waterproof solution for repairs to outside window cracks. Clear packing tape allows for a transparent appearance while protecting the window’s crack. Masking tape works in a pinch to keep the crack from spreading; however, this tape is not as sturdy as duct or packing tape. Slowly applying the tape helps to avoid bubbles and creases while covering the crack.

    Glue

    • Covering vertical cracks in a window with an adhesive such as glue prevents the crack from spreading. Clear epoxy glue is a see-through means of protecting a crack in a window. Application of clear epoxy glue requires gloves to keep skin safe and a well-ventilated area to prevent side effects from the fumes of the glue. Super glue is another kind of adhesive that works to mend a vertical crack in a window. Cleaning the window before applying the glue helps to remove any debris so it does not stick to the glue while it dries.

    Plastic

    • Placing plastic over a vertical window crack keeps air drafts from flowing into the house. A plastic garbage bag taped over the crack with duct tape works as a fast repair. Plastic insulation film helps to cover window cracks; this solution uses a hair dryer to shrink the plastic film to the window for a form fit. Regular plastic wrap and masking tape will seal a crack until a window repair professional arrives.

    Window Replacement

    • Replacing the whole windowpane is the only permanent way to fix a vertical crack in a window. Temporary repairs only stop the crack from widening; they do not remove the crack or fix it. Calling a professional glass installer to remove the old cracked glass and install a new pane is one method of resolving the issue. Installing the new windowpane yourself is another way to solve the problem and save money on labor costs.