How Much Does Basement Waterproofing Cost in Portland, OR?
Portland pricing is 18% above the national average. Updated for 2026.
Based on local labor rates, oceanic climate conditions, and Portland's tech-manufacturing-creative economy.See our methodology
Basement Waterproofing Pricing in Portland, OR
Portland is a high-cost market where basement waterproofing runs about 18% above the national average. The city's tech-manufacturing-creative economy supports higher wages, which translates to elevated contractor rates. With a population of 650K, competition among providers exists but demand keeps prices firm.
Local climate plays a direct role in basement waterproofing costs here. Heavy rainfall means moisture management is critical for roofing, basements, and foundations; mild temperatures reduce extreme HVAC needs.
Market-specific factors matter in Portland: strong environmental regulations affect building materials and methods; competitive green building market; moderate overall pricing.
Portland has strict permitting requirements. Budget an additional 5-15% for permits, inspections, and code compliance when planning your basement waterproofing project. Licensed contractors familiar with local codes can navigate this process efficiently.
Portland vs National Average
What Affects Basement Waterproofing Cost in Portland?
Method
Interior sealant: $500-$2,000. Interior drainage + sump: $3,000-$8,000. Exterior excavation: $8,000-$15,000
Sump Pump
New sump pump installation: $500-$1,200
Portland Market Conditions
strong environmental regulations affect building materials and methods; competitive green building market; moderate overall pricing
Local Climate Impact
heavy rainfall means moisture management is critical for roofing, basements, and foundations; mild temperatures reduce extreme HVAC needs
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Tips to Save on Basement Waterproofing in Portland
- 1.Interior waterproofing is cheaper than exterior excavation
- 2.Fix grading and gutters first — many moisture issues are solved by directing water away from the foundation
- 3.Get a professional assessment before committing to expensive solutions
- 4.In Portland, verify your contractor handles local permits — the permitting process here is more involved than average and DIY permit applications can cause delays.
📈 Basement Waterproofing in Portland Cost Trends (2020–2024)
Prices have increased +17.7% over the last 5 years
| Year | National Avg | YoY Change |
|---|---|---|
| 2020 | $5,012 | — |
| 2021 | $5,222 | +4.2% |
| 2022 | $5,561 | +6.5% |
| 2023 | $5,717 | +2.8% |
| 2024 | $5,900 | +3.2% |
Based on national averages adjusted for annual inflation. Actual costs vary by location and project scope.
💬 What Did You Pay?
Real costs reported by homeowners for Basement Waterproofing in Portland
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Frequently Asked Questions
Does basement waterproofing increase home value?
Yes. A dry basement protects the foundation and adds usable space, both of which increase value. It also prevents mold, which is a major health concern for buyers.
Why does basement waterproofing cost different in Portland than other cities?
Portland's costs reflect local labor rates driven by the tech-manufacturing-creative economy, oceanic climate conditions that affect materials and scheduling, and strict permitting requirements. The moderate labor market also influences competitive pricing.
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