Exterior Drainage and French Drain Installation in Lawrenceville, Georgia
Exterior Drainage Solutions That Move Water Away
Exterior drainage design that accounts for Georgia's clay soil and rainfall patterns stops water before it reaches the foundation. Water pooling in a yard after rain looks like a nuisance. What it actually represents is a failure in how the property manages stormwater, and that failure has consequences that extend far beyond wet grass. When water sits against a foundation, saturates the surrounding soil, and has no engineered path away from the structure, it builds pressure. Drainage is where water problems begin, and it is where lasting solutions have to start. Leader Waterproofing and Construction has designed and installed exterior drainage systems across Metro Atlanta and Gwinnett County for more than 10 years.
Our service area includes Lawrenceville, Georgia, and surrounding locations like Lilburn, Stone Mountain, Grayson, and Loganville. Clay-dominant soil absorbs water slowly and directs runoff toward low points, which are frequently located at foundation lines and against perimeter walls. Seasonal storms across the region drop significant rainfall in short windows, overwhelming yards where grading has settled, or drainage infrastructure was never adequate.
Exterior drainage design requires reading the land accurately before any trench is dug or pipe is placed. We assess where water enters the property, how it flows across the grade, where it accumulates, and what is preventing it from moving away from the structure. French drains, surface channels, downspout extensions, catch basins, and regrading are all tools in that process. The method selected depends entirely on the site's specific drainage behavior, not on what is fastest to install.
Exterior Drainage and French Drain Services We Offer
French Drain Installation
We install French drains designed to collect subsurface water before it reaches the foundation. Each system includes proper trench depth, drainage gravel, perforated pipe, filter fabric, and a reliable discharge route so groundwater moves away from the structure instead of collecting against it.
Surface Drainage and Catch Basin Installation
Standing water on patios, driveways, and low yard areas often requires surface drainage. We install catch basins and channel drains that collect runoff at ground level and route it through underground piping to an outlet where it can safely discharge away from the home.
Downspout Extension and Underground Drainage
Roof runoff discharged too close to the foundation creates repeated soil saturation. We extend downspouts through underground drainage lines, moving water away from the perimeter so it cannot collect beside basement walls, crawl spaces, footings, or foundation edges after heavy rainfall.
Yard Regrading and Slope Correction
Negative slope sends water directly toward the foundation instead of away from it. We correct grading problems by reshaping affected areas so surface water naturally moves toward approved drainage paths, reducing standing water, soil saturation, and pressure against the home's foundation system.
Perimeter Foundation Drainage
When groundwater collects near the foundation, perimeter drainage helps intercept it before pressure builds against the wall. We install drainage systems along vulnerable foundation areas to collect water, relieve soil saturation, and support long-term basement, crawl space, and foundation protection.
Drainage Outlet and Discharge Correction
A drainage system fails if water has nowhere safe to go. We correct poor discharge points, extend outlet lines, improve flow direction, and position water release areas far enough from the structure to prevent recirculation back toward the foundation.
What a Professional Drainage Assessment Actually Covers
Grade Measurement and Slope Evaluation
Drainage begins with understanding where the land naturally falls. We measure grade across the property to identify low points, flat zones, and negative slopes directing water toward the foundation, allowing drainage infrastructure to be positioned at the correct depth and angle.
Soil Percolation and Absorption Testing
Soil absorption determines how quickly groundwater builds after rain. Clay-heavy soils common across Gwinnett County absorb slowly and hold saturation longer. Testing percolation helps guide pipe sizing, gravel selection, trench depth, and the drainage capacity needed for reliable long-term performance.
Water Entry Point Mapping
We trace where water starts, how it travels, and where it collects near the foundation. Surface runoff, roof discharge, and subsurface groundwater each require different control methods, so accurate mapping gives the drainage design a clear path toward solving the issue.
Existing Pipe and Infrastructure Inspection
Older drainage systems must be inspected before new work is planned. Cracked pipe, blocked channels, disconnected outlets, and sediment buildup often explain recurring water problems. Building over failed infrastructure only repeats the same issue beneath a newer installation.
Outlet Verification and Discharge Point Assessment
A drainage system only works if collected water has a reliable exit. We confirm discharge points are far enough from the foundation, properly sloped, legally appropriate, and capable of handling storm volume without backing up into the system during heavy rainfall.
Neighboring Property Runoff Contribution
Water problems often begin beyond the property line. Nearby grading, driveways, patios, or landscaping may send runoff toward a shared low point. We assess outside water contribution so the drainage system is sized for the actual volume reaching the foundation.
Redirect Water Before It Reaches Your Foundation
Drainage is not the final step in protecting a home from moisture. It is the first. Every waterproofing system, every sealed crawl space, every repaired foundation performs better when the volume of water reaching the structure has been reduced at the source. Installing an interior drainage system without addressing how water arrives at the foundation is engineering around a problem that could have been solved upstream. That is the standard Leader Waterproofing and Construction applies to every exterior drainage project in Lawrenceville, Georgia, Lilburn, Loganville, and Grayson. We design the system around the actual drainage behavior of each property, install it with materials built for long-term ground contact, and discharge water where it cannot return to cause new problems. We are owner-operated, which means we are accountable for the performance of every drain we install.
client testimonials
Read Reviews From Happy Customers
Frequently Asked Questions
What is a French drain and how does it work?
A French drain is a gravel-filled trench containing a perforated pipe that collects subsurface water and redirects it to a discharge point. Water enters through the gravel and pipe perforations, flows by gravity to the outlet, and is discharged away from the structure or property.
How do I know if my yard needs a French drain or surface drainage?
French drains address subsurface groundwater that saturates soil without necessarily pooling visibly. Surface drainage systems manage runoff that ponds on top of the ground after rain. Many properties require both systems working in combination, which is determined by assessing how and where water accumulates during and after rain events.
Where does the water from a French drain discharge?
French drain discharge points vary by property. Common options include daylight outlets at a lower elevation on the property, connection to a storm drain system where local code permits, dry wells, or a designated drainage area set away from structures. We design discharge locations during the site assessment.
