Cost to French Drain Installation in San Francisco, CA

$3,875–$15,500 in San Francisco

55% above the national average · 1.55x cost multiplier

Expect to pay $3,875–$15,500 for a french drain installation in San Francisco, about 55% above the national benchmark. The West Coast region's contractor market and material costs account for most of this difference. The detailed breakdown below shows how budget, mid-range, and premium projects compare at San Francisco prices.

Cost Breakdown in San Francisco

Line Item	Low	Mid	High
Cost per linear ft	$39	$70	$116
Materials	$1,240	$2,480	$5,425
Labor	$2,325	$4,650	$8,525
Permits	$310	$388	$620
Total	$3,875+55% vs. national avg	$7,905+55% vs. national avg	$15,500+55% vs. national avg

Budget

Exterior French drain, shallow trench (18 inches), corrugated perforated pipe, landscape fabric, gravel backfill, about 50 linear feet

Mid-Range

Interior perimeter French drain, 100 linear feet along basement walls, rigid PVC pipe, connected to sump pit, concrete cutting and patching

Premium

Full interior and exterior French drain system, 150+ linear feet, commercial-grade drainage board, multiple drain connections, sump pump integration, full waterproofing membrane

Material Options

Material prices below are national averages; availability in San Francisco may shift costs slightly.

Material	Cost/Unit	Pros	Cons	Best For
Corrugated Perforated Pipe	$0.50 - $1.50 per linear foot	Cheapest option, flexible and easy to install, widely available, good for simple exterior drains	Can crush under weight, corrugations trap sediment over time, shorter lifespan (10-15 years)	Budget exterior yard drainage projects, temporary solutions, shallow installationsCheapest option, flexible and easy to install, widely available, good for simple exterior drains
Rigid PVC Perforated Pipe	$1.50 - $4 per linear foot	Very durable (50+ year lifespan), smooth interior resists clogging, handles high water volume, maintains shape	More expensive, requires fittings at every turn, rigid so it can't bend around obstacles	Interior basement French drains, deep exterior foundation drains, permanent installationsVery durable (50+ year lifespan), smooth interior resists clogging, handles high water volume, maintains shape
Drain Tile with Filter Sock	$1 - $3 per linear foot	Built-in filter prevents sediment infiltration, reduces maintenance, good lifespan	Filter sock can clog in very silty soil, moderate cost, not as strong as rigid PVC	Exterior drains in sandy or loamy soil, mid-budget projects where low maintenance mattersBuilt-in filter prevents sediment infiltration, reduces maintenance, good lifespan
EZflow Drainage Bundle	$3 - $6 per linear foot	Pipe pre-wrapped in gravel aggregate, no separate gravel needed, faster installation, consistent drainage	More expensive per foot, limited sizes, heavier to handle, not available everywhere	DIY exterior projects, tight trenches where gravel is hard to place, projects where speed mattersPipe pre-wrapped in gravel aggregate, no separate gravel needed, faster installation, consistent drainage
Commercial Drainage Board (Dimple Mat)	$2 - $5 per sq ft of wall coverage	Creates air gap against foundation wall, channels water down to drain, protects waterproofing membrane	Only used with interior or exterior wall drainage, adds significant cost, requires professional installation	Comprehensive interior waterproofing systems, used alongside French drains for maximum protectionCreates air gap against foundation wall, channels water down to drain, protects waterproofing membrane

Other Projects in San Francisco

Full Kitchen Remodel

Full Bathroom Remodel

Hardwood Floor Installation

Back to national average for French Drain Installation

San Francisco Estimate

Typical Range

$3,875–$15,500

vs. National Average

55% above national

Cost Multiplier

1.55x

Cost Per linear ft

$39–$116

Estimates apply San Francisco's 1.55x regional cost multiplier to national averages. Actual bids vary by contractor, project scope, and timing.

See national average costs →