How much should waterproofing a basement cost?
Waterproofing a basement costs between $500 and $3,500, on average. The cost depends on several factors, including the type and extent of waterproofing, as well as the amount of labor involved to complete the job. For example, the labor cost to apply concrete sealer is about $3-$12 per square foot. And adding an interior drainage system costs approximately $700-$2,600.