Repair & retrofit
Crawl space encapsulation
A sealed vapor barrier across the crawl space floor and walls, to keep moisture, mold and pests away from the framing.
2007Licensed and building in Los Angeles
238Permitted projects on public record, from retrofits to ADUs
4.9★From 60+ reviews online
B + C-8One CSLB license: general building, C-8 concrete and public works
Signs your crawl space has a moisture problem
- A musty smell inside the house, especially after rain.
- Damp soil, standing water or mold in the crawl space.
- Rot or soft spots in the posts, beams or floor framing.
- Signs of pests living under the house.
What encapsulation does
Bare soil in a crawl space gives off moisture all the time. A sealed vapor barrier across the floor and up the walls keeps that moisture out of the space, which protects the wood framing and the floor above. If water is getting in from outside, we fix the drainage first.
Often done with other work
Because we're already in the crawl space for retrofits, leveling and foundation work, encapsulation is often added to those jobs.
Questions
Will encapsulation fix water that's coming in from outside?
Not by itself. If water is entering the crawl space, we fix the drainage first, then seal the space.
Can it be done with a retrofit?
Yes. It's common to add encapsulation while we're under the house for bolting and bracing.
Related services