Crawl Space French Drains
When water comes from the yard, a French drain can catch it first. A trench with perforated pipe, gravel and filter fabric carries water around or away from the house. We plan the route and the outlet so it works for the long term, and we pair it with interior drainage where needed.

- PartsTrench, pipe, gravel, fabric
- RunsBeside the foundation or across a slope
- OutletDaylight or a pump
- Pairs withInterior drainage
What is included
- 1Intercepts waterStops it before the foundation.
- 2Plans the outletWater goes somewhere safe.
- 3Long-lastingFabric and gravel keep it clear.
- 4Fixes the causeTreats the source outside.
From the first call to a dry crawl space
Our partner experts repair and protect crawl spaces in cities across the country. Find yours below and ask for a free estimate.
- 1SurveyWe study slope, soil and downspouts.
- 2PlanA route and outlet are chosen.
- 3InstallTrench, pipe and gravel go in.
- 4RestoreThe yard is tidied.
Is this the right service for you?
- A yard that slopes toward the house
- A crawl space with wall seepage
- Owners with downspouts dumping near the foundation
- Anyone repairing landscaping around water
Common questions
Will it tear up my yard?
It needs a trench, and we restore the area. We plan the route to limit impact.
Where does the water go?
To a safe outlet, or to a pump if there is no daylight.
Do I still need a sump?
Often yes, as a backup. We explain the combination.
Services that pair with this one
Interior Drainage SystemsA perforated drain along the footing collects water before it can spread across the floor.See the service
Gutter, Downspout and Grading FixesSend roof water away from the house, and the crawl space gets a lot drier.See the service
Crawl Space WaterproofingKeep liquid water out of the space with drainage, a sump and a barrier that work together.See the service Find your city
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Find out what is under your house.
Call or text, or send the form for your free estimate. Tell us what you notice, from smells and cold floors to water and sagging.
