How Much Does French Drain Installation Cost in Pennsylvania?
Pennsylvania pricing is near the national average. Updated for 2026.
French Drain Installation Pricing in Pennsylvania
In Pennsylvania, the average cost for french drain installation is $5,100 per project, which is 2% higher than the national average of $5,000. Most Pennsylvania residents pay between $1,020 and $10,200.
Pennsylvania has costs that track closely with the national average, though prices can still vary between urban and rural areas within the state.
French drains redirect water away from your foundation using a perforated pipe in a gravel-filled trench. Critical for preventing basement flooding and foundation damage.
Pennsylvania vs National Average
What Affects French Drain Installation Cost in Pennsylvania?
Type
Interior: $40-$100/linear ft. Exterior: $60-$120/linear ft. Full perimeter: $5,000-$12,000
Additions
Sump pump: $500-$1,200. Drain tile: $20-$40/linear ft. Channel drain: $30-$75/linear ft
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💡 Tips to Save on French Drain Installation in Pennsylvania
- 1.Interior French drains are cheaper ($40-$100/linear ft) than exterior ($60-$120/linear ft)
- 2.DIY is possible for simple exterior drains
- 3.Address grading issues first — sometimes regrading alone solves drainage
- 4.Bundle with waterproofing for better pricing
📈 French Drain Installation in Pennsylvania Cost Trends (2022–2026)
Prices have increased +17.7% over the last 5 years
| Year | National Avg | YoY Change |
|---|---|---|
| 2022 | $4,332 | — |
| 2023 | $4,514 | +4.2% |
| 2024 | $4,807 | +6.5% |
| 2025 | $4,942 | +2.8% |
| 2026 | $5,100 | +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 French Drain Installation in Pennsylvania
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Frequently Asked Questions
Do French drains really work?
Yes. A properly installed French drain is one of the most effective solutions for redirecting groundwater. They typically last 30-40 years with minimal maintenance.
French Drain Installation Cost in Other States
Related Cost Guides for Pennsylvania
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