French Drain Cost in St. Louis (2026): Average Price & Estimate

French Drain Cost in St. Louis

Estimated french drain cost in St. Louis

$1,700–$5,050

Roughly about 4% below the national average.

An affordable labor market keeps prices near or below average.

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Based on St. Louis, MO pricing.

Estimated cost range

$1,700–$5,050

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An estimate for planning, not a quote. Get written quotes from local pros below.

Estimate, not a quote. Local prices vary by contractor and project. These are 2026 estimates for St. Louis, MO. Get written quotes from licensed St. Louis contractors before you budget.

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What to know about french drain in St. Louis

Frost heave and freeze-thaw in St. Louis can stress foundations, so good drainage and proper footing depth matter for a lasting result.

What affects french drain cost in St. Louis

Beyond the local market, the same factors that drive french drain cost everywhere apply in St. Louis:

Length and depth of the drain.
Type: yard, interior basement, or exterior foundation.
Soil conditions and digging difficulty.
Landscaping or concrete to remove and restore.

French Drain cost by drain type in St. Louis

These figures are adjusted for St. Louis pricing (about 0.96x the national average), so they reflect what local homeowners actually pay.

Estimated french drain cost by drain type in St. Louis (2026)

Drain type	Cost in St. Louis	Typical total
Surface / yard drain	$16.80 to $50.40 /ft	About $1,700 to $5,050
Footing / interior basement	$33.60 to $101 /ft	About $3,350 to $10,100
Exterior foundation	$38.40 to $115 /ft	About $3,850 to $11,500

Frequently asked questions

How much does french drain cost in St. Louis?

In St. Louis, MO, french drain typically costs $1,700 to $5,050 in 2026 for a standard project, about 4% below the national average. Your exact price depends on size, materials, and scope.

Why does french drain cost more or less in St. Louis?

An affordable labor market keeps prices near or below average. Labor rates, permit costs, and local demand are the main reasons St. Louis prices differ from the national average.

Do I need a permit for french drain in St. Louis?

Most french drain projects require a permit. Requirements vary by city and Missouri jurisdiction, so confirm with your local building department. A licensed contractor usually pulls the permit for you.

When is the best time of year for french drain in St. Louis?

In St. Louis, exterior work is easiest from late spring through early fall. Winter weather can delay roofing, siding, concrete, and foundation jobs, and some crews book up fast once the weather breaks.

Is french drain cheaper outside St. Louis?

Sometimes. St. Louis runs about 4% below the national average. Nearby smaller towns with lower labor costs can come in cheaper, while denser urban areas often cost more. Always compare quotes from contractors who serve your specific area.