French Drain in Jacksonville & Northeast Florida
Give the water somewhere else to go.
When water keeps ending up under the house, a liner alone will not hold. A French drain in a gravel trench intercepts the water before it reaches the crawlspace and carries it to a low point or a sump.

In their words
French drains are placed in a trench around homes that have consistent flooding/standing water issues.
What's included
The actual scope
- Perforated pipe in a gravel-filled trench
- Filter fabric to keep sand out
- Routed to daylight or a sump basin
- Grading and downspout extensions as needed
- Yard restored afterward
How it runs
Inspection to finished
- Walk the property and find the water path
- Design the route and outfall
- Trench, pipe, gravel and backfill
- Test with water before we leave
Terms, plainly
Free inspection. Photos and moisture readings delivered to you. A written quote with each solution priced on its own, so you can do it all or do it in stages.
French drain and sump, in cross-section
Where you live changes the job
Four kinds of ground, four versions of this job
Northeast Florida has four distinct ground conditions, and each one changes how we size and sequence this work. Your town page has the specifics.
Barrier islands and the Intracoastal
Full encapsulation with a sealed liner and dehumidifier, stainless or coated fasteners, and a sump where the water table reaches the crawl floor in storm season.
St. Johns River and tidal creek lowlands
Drainage first: a perimeter French drain and a sump sized for the volume, then a sealed liner and dehumidifier so the wood can finally dry out.
Pine flatwoods and hardpan
Vapor barrier or full encapsulation with a dehumidifier to break the humidity cycle, plus grading, downspout extensions and a French drain where water perches against the foundation.
Karst and clay uplands
Moisture control with a sealed liner and dehumidifier, drainage where clay holds water against the foundation, and an honest assessment of any pier or block movement before anything is sealed.
Other things we fix while we are under there
- Vapor BarrierThe floor of a dry crawlspace.
- Crawl Space EncapsulationSeal it, condition it, forget about it.
- Sump PumpMove the water out before it does damage.
- ExclusionKeep the critters out for good.
- InsulationStop paying to cool the ground.
- Crawl Space Clean-OutStart from clean.
- DehumidifierHold the humidity where wood stays dry.
Not sure if you need this? That's what the inspection is for.
Free inspection anywhere in Northeast Florida, and an honest answer about whether it can wait.
