Sloping the soil away from the foundation will remedy a wet basement most of the time. The Family Handyman recommends firmly packing clay soil around the foundation, with at least a 4-in. slope over the first 4 ft. Place 6-mil black plastic over the soil and cover it with landscape rock. Install 4- to 6-ft. gutter extensions to your downspouts to direct water farther away from your foundation.
Waterproofing basement walls go on like paint fill the pores in the concrete or masonry walls and prevent water from leaking in. To be effective, these coatings must be applied to bare concrete or masonry walls. Start by removing loose material with a wire brush. Then clean off