2 reports. Still early. Read individual reports rather than trusting summary stats.
French Drain Installation Cost in the NeighborPrices database
Read what 2 homeowners actually wroteFrench drain installation costs in this area typically range from $4,700 to $14,000, with most homeowners paying around $9,350. Half of reported projects fell between $7,025 and $11,675, giving you a sense of what mid-range pricing looks like in your location.
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Shaded band: middle 50% of reports (25th–75th percentile). Median tick in teal.
Most jobs land between $5,165.00 and $13,535.00 (5th–95th percentile). Ignoring 1 outlier below and 1 above.
Based on reports from Apr 2026 (first entries this month).
Data last updated Apr 7, 2026.
Size context is still being collected (0 of 2 reports include home size or system size). Numbers above may not reflect what your specific home would pay. Add a report to sharpen this →
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The underlying prices behind this page.
Got a bid from Waterproofing Technologies of Oregon for encapsulating the crawlspace with a French drain and sump pump setup.
Got quoted $14k for encapsulation with a dehumidifier, french drain, and sump pump for a 500 sq ft crawlspace, but only wanted a vapor barrier installation.
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Already had crawl space encapsulation work done? Drop in what you paid. Once approved, you unlock the full detail across every page.
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