Vapor Barrier in Jacksonville & Northeast Florida
The floor of a dry crawlspace.
Bare Florida ground gives off moisture all year. A reinforced vapor barrier over the crawlspace floor stops that moisture at the source, which is the single biggest reason the wood above it stays dry.
In their words
A vapor barrier is a sturdy plastic layer that covers the crawlspace floor.
What's included
The actual scope
- Reinforced polyethylene liner over the entire floor
- Seams overlapped and taped
- Fitted around piers and utilities
- Old debris and organic matter cleared first
- Upgradeable to full encapsulation later
How it runs
Inspection to finished
- Free inspection with photos and moisture readings
- Written quote with each option priced
- Clean-out, then liner installation
- Walk-through with photos of the finished space
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.
A sealed, conditioned crawlspace
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
- Crawl Space EncapsulationSeal it, condition it, forget about it.
- French DrainGive the water somewhere else to go.
- 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.