Foundation and Structural
Waterproofing and Crawlspace: costs by job
Install, replace, repair and maintain costs for every waterproofing and crawlspace job we track, with the trade required and how DIY-friendly each one is.
Verified August 2026
Cost comparison
Typical national figures for a standard single-family home.
| Basement Waterproofing InstallationTypical $8,500 · Waterproofing contractor · DIY 1/5 | $3,200 – $22,000 |
|---|---|
| Crawlspace Encapsulation InstallationTypical $7,500 · Waterproofing contractor · DIY 1/5 | $3,000 – $18,000 |
| French Drain InstallationTypical $4,200 · Drainage contractor · DIY 2/5 | $1,500 – $11,000 |
| Vapor Barrier InstallationTypical $2,200 · Waterproofing contractor · DIY 3/5 | $800 – $5,500 |
Basement Waterproofing
Variants: Interior drain · Exterior membrane · French drain