Our twin-pane windows have condensation trapped in the middle. We were told that we could drill a small hole in one pane of glass and the condensation would go away. Is this true? If so, do we drill on the inside pane or the outside pane. Is just one hole enough?

The reason you have moisture between your panes of glass is because the seal has failed, allowing water or moisture to enter. Drilling a hole will not alleviate your problem and can potentially make it worse. The only way to rectify this is to replace the insulating glass (IG) unit.

Check your warranty to see if the manufacturer has a full or pro-rated warranty on the sealed-glass unit. You may be able to have the unit replaced for little or no cost if it isn't that old. If you do not have a warranty or cannot find the manufacturer, a local glass house can probably replace the IG unit for you. This is most likely not what you wanted to hear, but it's the best solution for correcting the situation.

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C.R.S., Inc. · Spokane, Washington · USA