Basement Window Leaking Under Deck

The water level that night was about half way up the window.

Basement window leaking under deck. Not sure how it pooled up that quickly under the deck but it did. It doesn t look like the builder did anything to seal this window. Here s what you can do to keep as much water away from your house as possible. The water leaking down saturates the wood between the tongue and groove.

Someone noticed that water had been getting inside and caulked things up. During the winter months blowing snow sits on top of the porch then on slightly warmer days it melts and leaks into the basement. Likewise the problem probably isn t due to the age or installation of your windows. But because the window is under a deck and can t serve much purpose the best approach would be to have it bricked in and waterproofed from the outside and have the well removed.

Don t blame basement window leaks on the amount of rain. The tight space blocks air flow and keeps the wood damp leading to rot and decay. The first things to are your gutters and window well. If it does solve the problem your choices are to leave the plywood in place or replace it with a plastic window well cover if there is enough room below the deck.

Poor drainage around your home can allow water from rainfall melting snow or the ground to fill your window wells and enter into your basement. It is a regular water highway. Water wicks inside on those bolts or tubing. Under the deck there is plastic and then gravel about an inch.