Cost to French Drain Installation in Miami, FL (2026)

If you’re budgeting a french drain installation in Miami, most projects run $2,292-$9,168, 8% below the $5,000 national average. What moves that number most is usually one thing: Interior vs Exterior Installation. On its own it can swing the cost by $1,000 - $5,000, so that’s the decision to slow down on before you sweat the smaller stuff.

Easiest place to save: Get quotes for both interior and exterior solutions. Interior drains are often less expensive because they don't require heavy excavation equipment or landscape restoration.

In the Southeast (where Miami sits): Lower labor costs but high water tables and clay soil are common, sometimes requiring more extensive drainage solutions.

$2,292-$9,168 in Miami

8% below the national average · 0.92x cost multiplier

Homeowners in Miami typically spend $2,292-$9,168 on a french drain installation, about 8% below the national average. Labor rates and contractor availability in the Southeast region drive much of the price difference. Permit requirements and material delivery costs also play a role. See the full tier-by-tier breakdown below before requesting bids.

Cost Breakdown in Miami

Line ItemLowMidHigh
Cost per linear ft$23$41$69
Materials$832$1,664$3,640
Labor$1,235$2,469$4,527
Permits$208$260$416
Total$2,275-9% vs. national avg$4,653-9% vs. national avg$9,207-8% 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 Miami may shift costs slightly.

MaterialCost/UnitBest For
Corrugated Perforated Pipe$0.50 - $1.50 per linear footBudget 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 footInterior 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 footExterior 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 footDIY 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 coverageComprehensive 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 Miami

Miami Estimate

Typical Range

$2,292-$9,168

vs. National Average

8% below national

Cost Multiplier

0.92x

Cost Per linear ft

$23-$69

This 0.92x estimate prices Miami labor from BLS Occupational Employment and Wage Statistics (May 2025) and applies a lighter regional adjustment to materials and permits, which vary less by metro than labor does. Actual bids vary by contractor, project scope, and timing.

See national average costs →