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How to clear moisture that is between a window pane

Updated April 17, 2017

Double-pane windows have a gap between the two layers of glass. If not properly sealed or if the seal has worn, the interior of the window can fog up due to the collection of moisture and condensation. Often, professionals must be called in to repair this problem, but that can be expensive and not always guarantee positive results. A more affordable option is to try and remove the moisture and condensation on your own.

Drill a hole in the interior and exterior panes of the window using the drill and glass drill bit. Do this in the least seen section of the window.

Drill a hole in the diagonally opposite corner of both the interior and exterior panes of the window. Preferably, this would be another hidden or little seen corner.

Insert the small plastic tubing into the lower corner hole of the window. Seal the gap around the tubing with the waterproof putty and siphon the water out from between the glass panes.

Insert small tubing into the top corner hole. Spray the cleaning alcohol or glass buffer spray into the tubing while moving the tubing around between the glass panes. The alcohol or spray will clean any hardened water or other stains from the interior of the panes. The excess liquid will continue to be removed by the bottom hose.

Spray the cleaning alcohol or glass buffer spray into the tubing while moving the tubing around between the glass panes. The alcohol or spray will clean any hardened water or other stains from the interior of the panes.

Remove the tubing from both holes.

Scrape excess putty from the lower hole using the razor.

Seal both holes with the clear packaging tape. Poke holes in the tape using the needle to allow ventilation and prevent further condensation.

Tip

Make sure the window is clean when sealing with packaging tape. The tape will adhere best to a dust and dirt-free surface.

Warning

Glass is sharp and fragile. Wear goggles and gloves to protect yourself against broken glass or flying glass particles while drilling.

Things You'll Need

  • Drill with small glass bit (1/8 or 1/4 inch is best)
  • Glass buffer spray (or cleaning alcohol)
  • Needle
  • Clear packaging tape
  • Small plastic tubing
  • Small bucket
  • Waterproof putty
  • Cleaning alcohol
  • Small razor
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About the Author

Kim Sarah has been a writer since 2000. Her work has appeared on NECN, WCTR-TV3 and in the "Torch" university newspaper, among other publications. Sarah received a Bachelor of Arts in communications from Worcester State University and a Master of Arts in journalism from Roosevelt University. She is also studying nursing and computer science at Indiana State University.