If you have a soggy basement, you’re not alone. The American Society of Home Inspectors, based in Des Plaines, IL, estimates 60 percent of U.S. homes have wet basements. Especially during an EXTRAORDINARY period of rain even the driest basement can fall victim.
Rainwater or melted snow that isn’t routed away from the house is the most common cause of basement and crawl space moisture. Runoff percolates through porous topsoil and then stops at the compact soil near the base of the foundation. Hydrostatic pressure forces the water through gaps or cracks in walls and footings. Water also moves through porous walls by capillary action.
Look for ways runoff can enter your basement or crawl space. Check that the ground outside slopes away from your house at least 1 inch vertically for every 1 foot of horizontal travel. Then make sure downspout runoff isn’t pooling or percolating into soil near the foundation during a storm, and that downspout seams aren’t leaking; installing downspouts seams-out makes this check easy.
If you’re dealing with a full basement, start by patching cracks in the foundation and sealing basement walls. Your local hardware specialist can explain the different types of caulk and patching available to find the one that best suits your needs.For both basements and crawl spaces, you need to address outside entry points next by patching cracks in the driveway using cold-mix asphalt patching compound. For a concrete sidewalk or driveway, use ordinary cement.
You are NOT alone with your leaky basement.
What to do first. Immediately remove the water using a small submersible pump and apply fans to dry to prevent damage.
Then diagnosis where the water came from to try to remedy it with some DIY methods.
If all else fails a Sump pump systems MAY be in order, this could cost $5000 or more BUT should rectify ANY future water issues completely
For more on wet basement remedies check out this helpful article. My Basement is Leaking what should I do now?