How much does basement waterproofing cost?

Interior crack sealing is cheapest; a full interior drainage system with a sump pump often runs $6,000–$12,000; exterior excavation costs the most.

What causes a wet basement?

Poor grading, clogged or missing gutters, hydrostatic pressure, and failed foundation drainage are common causes. Fixing grading and gutters first is cheapest.

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Basement Waterproofing Cost Calculator

Cost to waterproof a wet basement.

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Frequently asked questions

How much does basement waterproofing cost?: Interior crack sealing is cheapest; a full interior drainage system with a sump pump often runs $6,000–$12,000; exterior excavation costs the most.
What causes a wet basement?: Poor grading, clogged or missing gutters, hydrostatic pressure, and failed foundation drainage are common causes. Fixing grading and gutters first is cheapest.