Basement Waterproofing near S Spring Ave. When water built up in their basement, a residential homeowner contacted us to resolve their moisture issues. We came out to install a sump pump into the basement to waterproof the basement and prevent mold and mildew issues. Dug a hole at the lowest point where the water was gathering and installed the new sump pump. The new sump pump is working well to eliminate moisture in the client’s basement.