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New Orleans/Basement Waterproofing

Basement Waterproofing in New Orleans, LA

New Orleans homeowners face year-round heat and humidity — avg high 91°f in summer with extreme dewpoints that accelerates wear on exterior surfaces. Our local pros understand your area's specific challenges and deliver quality work on every job.

Serving Garden District, Uptown, Lakeview, Metairie, Kenner, and surrounding New Orleans communities.

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Why New Orleans Homes Need Basement Waterproofing

Year-round heat and humidity — avg high 91°F in summer with extreme dewpoints
Hurricane season June–November with direct strike history (Katrina 2005, Ida 2021)
Subtropical climate with no true winter — frost rare and brief
Annual rainfall of 64 inches — one of the wettest US cities
Subsidence risk — city continues to sink on alluvial soils
Common Home Types We Service
Shotgun houses and Creole cottages (architectural signatures of New Orleans)Double shotguns converted to single-familyVictorian homes in Garden District and UptownRaised basement homes on elevated piersNew construction elevated per post-Katrina requirements

What You Get

Interior and exterior waterproofing solutions
Drain tile and sump pump systems
Foundation crack injection and repair
Dehumidification systems for humidity control
Transferable lifetime warranties available
Addresses the cause — not just symptoms

Our Basement Waterproofing Process

01

Water Source Diagnosis

We determine whether water is entering through the floor, wall cracks, cove joint, or window wells — each requires a different approach.

02

Solution Design

A comprehensive waterproofing plan is developed — interior drainage, exterior excavation, crack injection, or a combination.

03

Installation

For interior drainage: perimeter drain tile is installed, sump pit is excavated, and a sump pump is installed. Crack injection fills structural cracks from the inside.

04

Grading & Drainage

Exterior drainage improvements — grading, downspout extensions, window well drains — are addressed to reduce water pressure against the foundation.

Seasonal Considerations for New Orleans

1
Year-round termite treatment and monitoring (Formosan threat is severe)
2
Hurricane prep and post-storm cleanup (June–Nov)
3
Year-round mold and mildew management on all exterior surfaces
4
Summer algae on roofs from intense heat and rain
5
Post-flooding remediation and moisture management

Areas We Serve in New Orleans

Our basement waterproofing pros are available throughout the New Orleans metro area, including:

Garden DistrictUptownLakeviewMetairieKennerChalmetteMandevilleCovingtonSlidellGretna

Basement Waterproofing FAQ for New Orleans Homeowners

How often should New Orleans homeowners get basement waterproofing?
Given New Orleans's year-round heat and humidity — avg high 91°f in summer with extreme dewpoints, most homeowners benefit from basement waterproofing at least once a year. Year-round termite treatment and monitoring (Formosan threat is severe) often makes spring or fall the optimal time to schedule service.
What home types in New Orleans most need basement waterproofing?
Shotgun houses and Creole cottages (architectural signatures of New Orleans) and Double shotguns converted to single-family are the most common home types in New Orleans and typically see the most wear. Our local pros are familiar with the exterior materials found across the metro.
What causes a basement to leak?
The most common causes: hydrostatic pressure from saturated soil, cracks in the foundation wall or floor, failed parging or waterproofing membrane, poor grading directing water toward the home, and clogged or inadequate drainage.
Interior vs. exterior waterproofing — which is better?
Exterior is the ideal solution but requires excavating around the entire foundation — expensive and disruptive. Interior drainage systems manage water that gets in and are more practical for most existing homes. The right answer depends on the specific water entry point.
How much does basement waterproofing cost?
Interior drainage systems run $5,000–$15,000. Exterior waterproofing with excavation is $20,000–$50,000+. Crack injection for single cracks runs $500–$3,000.
Will waterproofing allow me to finish my basement?
Yes. A properly waterproofed basement with humidity control is safe to finish with framing, insulation, and drywall. An active water problem must be fully resolved before finishing.

Other Services in New Orleans

Crawl Space EncapsulationFoundation RepairSump Pump Installation & Repair

Book Basement Waterproofing in New Orleans

Get a free quote from a local pro. We serve Garden District, Uptown, Lakeview, and all surrounding New Orleans communities.

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