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Free crawlspace inspection with photos and moisture readingsOwner-operated12 Northeast Florida counties
Based in Jacksonville, FL
FIRMFOUNDATIONSCRAWLSPACE
Northeast Florida · Free inspection

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.

(252) 773-2346
Open French drain trench beside a house, lined with filter fabric and white gravel around a black perforated pipe

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

  1. Walk the property and find the water path
  2. Design the route and outfall
  3. Trench, pipe, gravel and backfill
  4. 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.

How the system works

French drain and sump, in cross-section

Not to scale · sized to the water you actually get
1Summer storms and a shallow water table put water in the soil against the foundation, with nowhere to go.
2It ends up standing under the house, where a liner alone cannot hold it.
3A perforated pipe in a gravel trench wrapped in filter fabric intercepts the water before it reaches the crawlspace.
4Anything that still collects flows to a sump basin at the low point, with a pump sized to the load.
5Discharge is routed well away from the house so it does not simply come back.

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.

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.

(252) 773-2346