Every basement is different, so the real price comes after an inspection. National cost data gives a useful starting point.
Typical prices
| Type of work | Typical cost |
|---|---|
| Full basement waterproofing (overall range) | $6,000 to $18,000 |
| Interior waterproofing (drains, pump, sealing) | $6,000 to $12,000 |
| Exterior waterproofing (excavation, membrane, drains) | $10,000 to $18,000 |
Source: HomeGuide basement waterproofing cost guide. Local prices can be higher or lower.
Talk to a local waterproofing contractor
Tell us what is happening in your basement and a local contractor will get back to you.
Request a call backWhat changes the price
- How many walls need treatment, and their length
- Foundation type: stone, block or poured concrete
- Whether a sump pump and pit already exist
- Finished walls or flooring that have to be removed and replaced
- Excavation depth and access for exterior work
Getting a fair quote
- Ask where the water is coming in and why the proposed fix addresses it.
- Ask what warranty comes with the work and whether it transfers if you sell.
- Get at least two written quotes for large jobs.
Talk to a local waterproofing contractor
Tell us what is happening in your basement and a local contractor will get back to you.
Request a call back