What is the cost per linear foot for a French drain?

French drain cost often $20–$50 per linear ft installed. Depth, pipe size, and rock affect price.

What is included in drainage system installation?

Typically: trenching, pipe or channel, gravel, and outlet. Permits and connection to storm system may be extra.

How long does drainage installation take?

50–100 linear ft often 1–2 days. Large or complex systems may take longer.

French drain vs surface drain cost?

Surface or channel drains are usually cheaper per ft ($10–$25). French drains are subsurface and cost more ($20–$50+).

Do I need a permit for a drainage system?

Connecting to municipal storm systems often requires a permit. Simple yard drainage may not. Check local rules.

What affects drainage system cost?

Type (French vs surface), length, depth, soil (rocky = more labor), and outlet location.

How do I get the best drainage installation quote?

Get 2–3 quotes. Describe where water pools and where it can outlet. Ask what is included (trench, pipe, gravel).

Can I install a French drain myself?

DIY is possible for short runs with proper slope and perforated pipe. Deep or long runs may need a pro for correct grading.

What is a dry well and how much does it cost?

A dry well collects runoff and lets it percolate. Often $30–$60+ per linear ft or $1,500–$5,000+ per unit depending on size.

How much does it cost to fix yard drainage?

Fixing yard drainage often $1,000–$5,000+ depending on scope. French drain for one problem area might be $1,500–$3,000.

What is the lifespan of a French drain?

Properly installed French drains can last 30–50+ years. Clogging or settlement can reduce effectiveness.

Does drainage work in clay soil?

French drains work in clay but may need more gravel and proper slope. Surface drainage can help direct water away.

What is the cost of adding a catch basin?

Catch basins often $300–$1,000+ each including labor. Used where water collects before entering the drain.

When is the best time to install drainage?

When ground is workable—spring or fall. Avoid frozen or saturated soil.

Drainage System Installation Cost Calculator

Q: How much does drainage system installation cost?

Drainage system installation in the U.S. typically costs $10–$50+ per linear ft: French drain $20–$50, surface/channel $10–$25, dry well $30–$60+. Get 2–3 local quotes.

Use this free drainage system installation cost calculator to estimate cost by type (French drain, surface, dry well) and length. Most systems run $10–$50+ per linear ft. Get a low, average, and high estimate below.

How much does drainage system installation cost?

Drainage system installation typically costs $10–$50+ per linear ft: French drain $20–$50, surface $10–$25. Get 2–3 local quotes.

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Average Drainage System Installation Cost

National averages run $10–$50+ per linear ft. Final cost depends on type and depth.

Cost by type (per linear ft)

Typical ranges

Type	Estimated cost
French drain	$20–$50
Surface / channel	$10–$25
Dry well	$30–$60+

Cost factors

What drives the total

Factor	Impact
Depth & rock	Increases cost
Permit / outlet	May be extra

What Affects Drainage System Installation Cost?

Type — French drains cost more per ft than surface channels.
Length — Longer runs increase total; per-ft rate may improve.
Site — Rocky soil or deep trenching increases labor.

Data from contractor quotes

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Drainage System Installation Cost FAQs

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