Drainage installation costs
What each yard and outside job fixes, and what it costs to install.
How much does each drainage job cost?
An installed yard French drain costs $20–$45 per ft nationally (as of Oct 2026). Quantity, ground, access and the outlet move the price.
A curtain drain is $10–$35 per ft. Underground downspout drainage is $150–$350 per downspout, before the pipe run. These are published planning ranges, not quotes, as of Oct 2026.
Each cost guide explains the outlet, lawn repair and worked examples.
Yard and outside the house
Installed, national ranges as of Oct 2026. Each job has its own page and cost guide.
Yard French drain
A gravel trench with a perforated pipe that drains soggy ground.
$20–$45 per ftCost guide
Curtain drain
A shallow drain across a slope that catches water before it reaches the yard.
$10–$35 per ftCost guide
Exterior footing drain
A pipe at the base of the foundation that carries groundwater away from the walls.
$30–$90 per ftCost guide
Underground downspout drainage
A buried solid pipe that carries roof water away from the house.
$150–$350 eachCost guide
Catch basin
A grated box at a low spot that collects surface water and pipes it away.
$1,200–$2,800 eachCost guide
Channel drain
A long grated trench across a driveway or patio that catches water running off it.
$400–$1,200 eachCost guide
Yard regrading
Reshaping the soil so the ground slopes away from the house.
$0.40–$2.00 per ft²Cost guide
Not priced yet: drainage swales, gutter work and foundation repair. A job gets a price here once a published rate exists for it.
Water in the basement or a failing sump pump?
Water in the basement or a failing sump pump is outside what this site prices.
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