Water pooling around your home can quickly turn into a major problem. Whether it’s destroying your landscaping, soaking your crawl space, or threatening your foundation, the key is redirecting water before it does damage. That’s where a French drain system comes in.
In this guide, we’ll walk you through how French drains work, where they should be installed, what they cost, and why they’re one of the most effective solutions for yard and foundation drainage.
What Is a French Drain System?
A French drain is a trench filled with gravel or rock containing a perforated pipe that redirects water away from your property. It’s designed to collect surface water and groundwater and carry it to a designated discharge point, such as a dry well, storm drain, or swale.
How It Works:
- Water flows into the gravel trench.
- The water filters down into the perforated pipe.
- The pipe carries the water away from your home.
This system helps prevent soil saturation and relieves hydrostatic pressure near your foundation.
Where Should a French Drain Be Installed?
The location depends on your water issues:
- Yard Drainage: If water pools in your lawn, a French drain can be installed parallel to the problem area to collect runoff.
- Foundation Protection: If water collects near your home’s perimeter, install the drain along the foundation.
- Basement Waterproofing: French drains can be installed on the exterior or interior of basement walls to manage subsurface water.
- Behind Retaining Walls: To prevent pressure buildup and wall damage from trapped water.
French Drain Installation: What to Expect
Professional installation typically involves:
- Assessment: A drainage expert evaluates water flow and soil conditions.
- Trenching: Digging a slope-graded trench from the problem area to the outlet.
- Laying the Pipe: A perforated pipe is placed in the trench and wrapped in landscape fabric to prevent clogs.
- Filling: Gravel or drainage rock is filled around the pipe.
- Finishing: Top layer can be soil, sod, or decorative stone depending on location.
Proper slope and placement are critical—this isn’t a job where shortcuts pay off.
How Much Does a French Drain Cost?
Costs vary based on materials, depth, and location. Here’s a quick breakdown:
| Location | Estimated Cost per Linear Foot |
| Yard | $10 – $25 |
| Basement Interior | $50 – $80 |
| Exterior Foundation | $60 – $100 |
Factors That Influence Cost:
- Soil type and ease of excavation
- Pipe material and depth
- Accessibility of the work area
- Drain length and outlet distance
While DIY might seem cheaper, hiring a pro ensures the correct slope, depth, and long-term performance.
Why Choose a French Drain System?
French drains offer powerful benefits for homeowners dealing with water issues:
- Redirects Water Away Efficiently
- Protects Foundations and Basements
- Prevents Erosion and Yard Damage
- Reduces Mold, Mildew, and Musty Smells
- Enhances Landscaping Durability
Combined with proper grading and waterproofing, they provide peace of mind and lasting protection.
How AMC911 Can Help
At AMC911, we install custom French drain systems tailored to your home’s specific drainage needs. Serving homeowners across Virginia, including Chesapeake, Virginia Beach, Norfolk & more, our solutions combine proven materials, proper slope engineering, and a team you can trust.
Our Process:
- Free Inspection
- Custom Drainage Plan
- Expert Installation
- Warranty-Backed Results
Don’t Let Drainage Issues Go Unfixed
Water problems don’t solve themselves. They get worse—and more expensive to fix. If you’ve noticed puddles, soggy soil, or water near your home, it’s time to take action.
Call AMC911 today to schedule your free inspection and protect your home with a professionally installed French drain system.
