cost of leaking water in basement
Basement Leak Repair Costs. 1  Sealing a small crack or leak in the basement can cost as little as $50-$100. 2  Using products such as waterproof paint, cement coating, and caulking to seal the surface of the entire basement may cost as much as $500, including materials and labor. A complete exterior repair including excavation, waterproofing, and backfilling costs $10,000 to $30,000 depending on the size of the home.