What Is a French Drain?
A French drain is a gravel-filled trench with a perforated pipe running through it. Groundwater seeps into the gravel, drops into the pipe through its holes, and runs downhill to a lower outlet — pulling water out of the wettest part of your yard and carrying it somewhere it can't do damage.
In Northeast Florida, where flat lots, a high water table, and heavy summer downpours trap water against homes and in low spots, a French drain is often the most effective long-term fix when surface grading alone isn't enough.
Signs You Need a French Drain
The Problem
- Standing water that lingers for days after rain
- Spongy, always-wet areas that never dry out
- Water pooling against the foundation
- A low spot or back corner that turns into a pond
- Grass that dies in the same wet spots every year
- Runoff from a neighbor's yard collecting on yours
The Fix
- Intercept groundwater in a gravel trench
- Carry it off in perforated pipe
- Pull water away from the foundation
- Drain low spots to a proper outlet
- Keep roots out of standing water
- Redirect incoming runoff around the yard
How a French Drain Is Installed
Here's the process we follow on a typical residential French drain — the same steps whether you hire us or tackle a small run yourself:
- Plan the route & outlet. Trace where water naturally wants to go and pick a lower outlet — the street, a swale, a dry well, or a spot where the pipe can daylight on a downslope. The whole run has to fall downhill, so the route is mapped before any digging.
- Dig the trench. Dig 14 to 20 inches deep and 6 to 12 inches wide, sloping the bottom about 1 inch for every 8 to 10 feet of run toward the outlet. That gentle, steady fall is what keeps water moving instead of sitting in the pipe.
- Line with landscape fabric. Filter fabric goes down the trench with plenty hanging over both edges. It lets water through but blocks the silt and roots that would otherwise clog the gravel and pipe within a few seasons.
- Add the gravel base. Two to three inches of washed drainage gravel over the fabric forms a level bed that cradles the pipe and gives water a clear path into it.
- Lay the perforated pipe. Four-inch perforated pipe is set on the gravel with the holes facing down — counterintuitive, but it lets the pipe collect water from the bottom up — then covered with more gravel to within 2 to 3 inches of the surface.
- Wrap, backfill & restore. The fabric is folded over the gravel, the trench is backfilled, and the surface is brought back to grade. On any slope, an erosion-control blanket is pinned down before sod so the first hard rain can't wash out the fresh grass.
Before you dig: Call 811 to have underground utilities marked. It's free, it's the law in Florida, and it takes a few days — so schedule it before renting a trencher.
Where French Drains Work Best
Soggy Backyards
A drain run across the low end of the yard collects water and carries it to the front or a swale, drying out the lawn for good.
Foundation Protection
A French drain along the foundation intercepts water before it can pool against the slab and find its way inside.
Downspout Tie-Ins
Roof runoff is piped into the drain and carried well away from the house instead of dumping at the foundation.
Side Yards & Tight Spots
Narrow side yards between homes trap water with nowhere to go — a French drain gives it a path out.
Slopes & Hillsides
On grades, a drain catches water moving downhill and stops erosion, finished with blankets and sod to lock the soil in.
Neighbor Runoff
When water flows in from an uphill property, a French drain intercepts it at the property line before it floods your yard.
When a French Drain Isn't the Whole Answer
Not every wet yard is solved by one drain. Sometimes a French drain works best paired with yard grading to reshape the surface, a sump pump for low areas where gravity drainage isn't possible, or channel drains across driveways and patios. We assess the whole property and recommend the most effective, cost-efficient combination — not just the one system.
Areas We Serve
We install French drains throughout Northeast Florida including Jacksonville, Orange Park, Fleming Island, Mandarin, St. Augustine, Ponte Vedra, and all of Duval, Clay, and St. Johns counties.