Water and foundations don’t mix. When water pools around the foundation, say, from roof and gutter runoff, it can seep downward and leak through basement walls. Saturation causes some types of soil to swell, putting unwanted lateral pressure on foundation walls and increasing the risk of cracking. To minimize the amount of water that collects around your home, consider adding downspout extensions. They are simple to install and will direct rain runoff away from your foundation where it won’t cause structural problems.