French Drain Cost in Boulder (2026): Average Price & Estimate

French Drain Cost in Boulder

Estimated french drain cost in Boulder

$2,050–$6,200

Roughly about 18% above the national average.

High demand and strict codes raise costs well above average.

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Based on Boulder, CO pricing.

Estimated cost range

$2,050–$6,200

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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 Boulder, CO. Get written quotes from licensed Boulder contractors before you budget.

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What to know about french drain in Boulder

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

What affects french drain cost in Boulder

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

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 Boulder

These figures are adjusted for Boulder pricing (about 1.18x the national average), so they reflect what local homeowners actually pay.

Estimated french drain cost by drain type in Boulder (2026)

Drain type	Cost in Boulder	Typical total
Surface / yard drain	$20.65 to $61.95 /ft	About $2,050 to $6,200
Footing / interior basement	$41.30 to $124 /ft	About $4,150 to $12,400
Exterior foundation	$47.20 to $142 /ft	About $4,700 to $14,200

Frequently asked questions

How much does french drain cost in Boulder?

In Boulder, CO, french drain typically costs $2,050 to $6,200 in 2026 for a standard project, about 18% above the national average. Your exact price depends on size, materials, and scope.

Why does french drain cost more or less in Boulder?

High demand and strict codes raise costs well above average. Labor rates, permit costs, and local demand are the main reasons Boulder prices differ from the national average.

Do I need a permit for french drain in Boulder?

Most french drain projects require a permit. Requirements vary by city and Colorado 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 Boulder?

In Boulder, 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 Boulder?

Sometimes. Boulder runs about 18% above 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.