Serving Longview, Kelso & SW Washington
Crawl Space Vapor Barrier Installation in Longview & Kelso
Bare dirt or torn, worn-out plastic under your home lets ground moisture into the crawl space. We remove what's failed and install a new vapor barrier that properly covers the ground.
- Old, torn plastic removed first
- New barrier laid over the soil with overlapped seams
- Fit around posts, piers and plumbing
Request a Free Vapor Barrier Estimate
Tell us what's covering the ground under your home now. We'll follow up to set a time to look.
Common signs
Signs your vapor barrier needs replacing
Exposed soil
Bare dirt showing under the house, or no barrier at all.
Torn or shredded plastic
Rips, holes and pieces that have been pulled apart over the years.
Gaps at the seams
Sheets that have shifted, leaving soil exposed between them.
Water or mud on top
Puddles or dirt sitting on the plastic instead of underneath it.
Thin, brittle plastic
Old material that cracks or crumbles when it's moved.
How it helps
What a vapor barrier does, and what it doesn't
Soil gives off moisture vapor all the time. A vapor barrier is a durable sheet laid over the ground that limits how much of that moisture rises into your crawl space. It also gives you a cleaner surface for future repairs.
A vapor barrier isn't the same as full encapsulation. It covers the ground, but it doesn't seal the walls or close the crawl space off from outside air. For many homes, a quality vapor barrier is exactly what's needed. For others, especially with standing water or high humidity, we may recommend drainage or encapsulation instead.
- Remove old, damaged plastic
- Lay a new barrier over the soil
- Overlap seams and fit around posts and piers
- Point out any water or humidity issues it won't solve
A vapor barrier won't fix standing water
If water collects under your home, it needs drainage. New plastic over a wet problem can hide it instead of solving it.
Know the difference
Vapor barrier vs. encapsulation vs. drainage
A vapor barrier is the simplest of the three. Here's how it compares.
Vapor barrier
A ground cover that limits moisture vapor rising from the soil. A good fit when the main issue is bare dirt or old, torn plastic.
Encapsulation
A sealed liner over the ground and up the foundation walls that closes the crawl space off from damp ground and outside air.
Drainage & sump
Collects water that gets into the crawl space and moves it out. Needed when water pools or flows, and done before anything is sealed.
Real project photos
Old barriers we replace, and new ones we install
Photos are from Crawlspace Pros projects. Every home is different, and your recommendation will be based on what we find in your crawl space.
Why Crawlspace Pros
A local crew that explains before it quotes
A vapor barrier is a straightforward job, and it should be priced and explained that way.
Family owned, small and independent
You are working with a local family business, not a call center or a national franchise.
10+ Years Experience
Years of hands-on crawl space work in Southwest Washington homes.
Licensed, bonded & insured
Coverage you should expect from anyone working under your home.
Straightforward pricing
Honest, fair pricing with the scope explained up front, so you know what you are paying for.
Clear communication
We show you what we found and explain what matters most before any work is scheduled.
Free estimates
Tell us what is going on and we will set up a time to look and give you an estimate.
How it works
Four simple steps from first call to clear plan
- 1
We listen
Call, text or send the form and tell us what you have noticed.
- 2
We inspect
We get into the crawl space to find what is actually causing the problem.
- 3
We explain
We walk you through what we found and what matters most.
- 4
We lay out the work
You get a clear repair plan and estimate. You decide what happens next.
From our customers
What homeowners say
Straightforward pricing, no hidden surprises, friendly, and hard working.
He cleaned up the entire crawl space!!
Fast, affordable, and friendly. … they did a fantastic job.
Worked with us? We'd love to hear how it went.
Read or leave a Google reviewQuestions
Vapor barrier questions
How do I know if my vapor barrier needs replacing?
If you can see bare soil, the plastic is torn or brittle, seams have pulled apart, or water and mud are sitting on top, it's probably time. We'll take a look and tell you if replacing it makes sense.
Do you remove the old plastic?
Yes. Old, torn plastic is removed before the new barrier goes in, so you're not just covering up the old one.
Is a vapor barrier the same as encapsulation?
No. A vapor barrier covers the ground. Encapsulation goes further by sealing the walls and closing off the crawl space. We'll explain which one fits your home.
Will a vapor barrier stop water in my crawl space?
No. A vapor barrier limits moisture vapor from the soil. Standing or flowing water needs drainage, and sometimes a sump pump.
How long does installation take?
It depends on the size and condition of the crawl space. We'll give you a timeframe with your estimate.
Do you serve my area?
Our service area includes Longview, Kelso, Woodland, Battle Ground and Vancouver and surrounding Southwest Washington communities. Send your city or ZIP with the form and we'll confirm we can get to you.
Replace the old plastic under your home
Tell us what's down there now. We'll take a look and give you a clear vapor barrier estimate.
$500 OFF when you book today.