Water Management

Keep Water Away From Your Foundation

Poor exterior drainage is one of the leading causes of basement water problems and foundation damage. When water pools near your foundation or flows toward your home, it creates hydrostatic pressure that can crack walls, seep through floors, and compromise your home's structural integrity. Our exterior drainage solutions effectively channel water away from your property, protecting your investment for years to come.

Our Drainage Solutions

Effective water management for your property

Exterior sump pump and dry well discharge system installation — Exterior Sump Pump & Dry Well Discharge System

Perforated drainage pipe installation in excavated trench — Perforated Drainage Pipe Installation

French drain system with gravel and perforated pipe — French Drain System Installation

Underground drainage tile system with clean-out access — Drainage Tile System with Clean-Out

Exterior yard drainage trench excavation in progress — Yard Drainage Trench Excavation

Downspout extension and underground drainage connection — Downspout Extension Connection

Exterior grading project for proper water runoff — Exterior Grading for Water Management

Complete exterior drainage system with multiple discharge points — Complete Drainage System Installation

Dry well installation for underground water dispersal — Dry Well Underground Installation

Surface drainage channel and catch basin system — Surface Drainage Channel System

Yard slope correction and regrading for drainage — Yard Slope Correction & Regrading

Perimeter French drain around foundation — Perimeter French Drain System

Exterior drainage project ready for backfill and restoration — Drainage Ready for Backfill

View Our Work Gallery

Our Exterior Drainage Services Include

French Drain Installation

Perforated pipe systems surrounded by gravel that collect and redirect groundwater away from your foundation and problem areas.

Dry Well Systems

Underground collection chambers that allow water to slowly percolate back into the soil, preventing pooling and runoff problems.

Downspout Extensions

Underground piping that carries roof water far away from your foundation, preventing the concentration of water near basement walls.

Yard Grading & Regrading

Reshaping your yard's slope to ensure water flows away from your foundation rather than toward it.

Channel Drains

Surface drainage solutions for driveways, patios, and other hardscaped areas where water tends to collect.

Catch Basins

Surface water collection points that connect to underground drainage systems to manage yard water effectively.

Our Drainage Installation Process

Site Assessment

We evaluate your property's topography, soil conditions, water sources, and problem areas to design the optimal drainage solution.

System Design

Our experts design a custom drainage plan that addresses your specific water problems and works with your landscape.

Professional Excavation

We carefully excavate drainage trenches and installation areas, protecting existing landscaping and utilities.

System Installation

Drainage pipes, gravel beds, and collection points are installed with proper slope to ensure effective water flow.

Restoration & Testing

We backfill, restore landscaping, and test the system to verify proper drainage before completing the project.

Why Choose Mansour's for Exterior Drainage?

Custom Solutions

Every property is different - we design drainage systems tailored to your specific landscape and water issues.

Long-Term Protection

Proper exterior drainage prevents foundation damage, basement flooding, and landscape erosion for years.

Landscape Restoration

We restore your yard to its original condition or better after installation is complete.

Expert Installation

Proper slope, materials, and installation ensure your drainage system works effectively.

Frequently Asked Questions

Signs you need exterior drainage include: water pooling in your yard after rain, water flowing toward your foundation, soggy or constantly wet areas, erosion channels, basement water problems, or a musty smell in your basement. If water isn't draining away from your home properly, exterior drainage can solve the problem.

A French drain is a subsurface system with a perforated pipe surrounded by gravel, designed to collect groundwater below the surface. A trench drain (or channel drain) is a surface-level system with a visible grate that collects surface water from driveways, patios, or other hard surfaces. We install both depending on your needs.

Depending on your property and local regulations, drainage water can be directed to: the street or storm sewer, a dry well that allows water to percolate into the soil, a low area of your property away from structures, or a natural drainage area. We design the system to comply with local codes and effectively manage water.

Exterior drainage costs vary based on the type of system, length of drainage runs, soil conditions, and property complexity. French drains typically range from $20-$50 per linear foot. A complete drainage solution for an average home might range from $2,000-$8,000. We provide detailed quotes after assessing your property.

Properly installed drainage systems require minimal maintenance. Keep surface grates clear of debris, ensure downspout connections remain secure, and occasionally flush the system if you notice slow drainage. We can perform maintenance inspections to ensure your system continues working effectively.

Exterior Drainage Installation