Cost to French Drain Installation in New Orleans, LA (2026)
If you’re budgeting a french drain installation in New Orleans, most projects run $2,169-$8,675, 13% 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 New Orleans sits): Lower labor costs but high water tables and clay soil are common, sometimes requiring more extensive drainage solutions.
$2,169-$8,675 in New Orleans
13% below the national average · 0.87x cost multiplier
Homeowners in New Orleans typically spend $2,169-$8,675 on a french drain installation, about 13% 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 New Orleans
| Line Item | Low | Mid | High |
|---|---|---|---|
| Cost per linear ft | $22 | $39 | $65 |
| Materials | $752 | $1,504 | $3,290 |
| Labor | $1,219 | $2,437 | $4,468 |
| Permits | $188 | $235 | $376 |
| Total | $2,159-14% vs. national avg | $4,411-14% vs. national avg | $8,698-13% 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 New Orleans may shift costs slightly.
| Material | Cost/Unit | Best For |
|---|---|---|
| Corrugated Perforated Pipe | $0.50 - $1.50 per linear foot | 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 | 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 | 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 | 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 | 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 New Orleans
New Orleans Estimate
Typical Range
$2,169-$8,675
vs. National Average
13% below national
Cost Multiplier
0.87x
Cost Per linear ft
$22-$65
This 0.87x estimate prices New Orleans 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 →