Basement Waterproofing Cost in Portland, OR
In Portland, OR, basement waterproofing costs about $5,600 for interior drain and sump work, with most jobs from $2,240 to $11,760. That is 12% above the national typical price of $5,000.
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Basement Waterproofing price range in Portland
| Low | Typical | High | |
|---|---|---|---|
| Price in Portland | $2,240 | $5,600 | $11,760 |
| US national price | $2,000 | $5,000 | $10,500 |
| Difference | +$240 | +$600 | +$1,260 |
Labor is usually the biggest part of the bill, and rates in Portland depend on local demand. Local cost index used: 1.12 (1.00 is the US average).
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What affects the price in Portland
- House or job size
- Material and quality grade
- Local labor rates
- Permits and inspections
The price covers interior drain and sump work. Typical project time is 2 to 5 days. Expected life: 20 to 30 years.
How to get a fair price in Portland
- Collect at least three written quotes from licensed and insured Oregon contractors.
- Ask for the price split into labor, materials and permits.
- Check licenses with the Oregon state licensing board.
- Pay in stages tied to finished work, not all up front.
Frequently asked questions
How much does basement waterproofing cost in Portland?
About $5,600, with a typical range of $2,240 to $11,760 for interior drain and sump work.
Is basement waterproofing more expensive in Portland than average?
It is 12% above the national typical price.
Does the price include permits?
Sometimes. Ask your contractor whether permits, disposal and cleanup are in the quote.
Sources and method
- Bureau of Economic Analysis: regional price parities
- U.S. Bureau of Labor Statistics: Occupational Outlook Handbook
- Prices are modelled estimates, not quotes
Page last updated November 2026. See our editorial policy and disclaimer.