Adjust the home's spouting for proper clearance. Spouts from the home's gutter should extend at least 6 feet from the basement wall to prevent flooding. Install a 2-foot long cement or plastic splash block underneath each spout to keep water from spraying on the wall. Splash blocks are available at most hardware stores.
Build up the soil around the house to increase the slope of the yard. The slope guides water away from the home. Grade the yard so that the soil slopes out 6 feet from the basement walls.
Clean the sewer drain lines according to your area's regulations. Clogged sewer drain lines prevent a basement from draining if water comes into the property. If you are part of a homeowner's association, ask whether you, as the property owner, must clear out the basement drain line to the main sewer.
Repair basement wall cracks and other areas showing signs of wetness. Use a basement wall patch according to the instructions on its label to patch the walls.