Crawl space with a white liner sealed up the foundation walls

Serving Longview, Kelso & SW Washington

Crawl Space Waterproofing in Longview & Kelso, WA

Water getting into your crawl space is worth solving at the source. We find how moisture is getting in and recommend the right combination of fixes, not a one-size-fits-all package.

  • Diagnosis first: where and how water gets in
  • Fixes matched to the cause, from drainage to sealed liners
  • Honest advice on what will and won't help

Request a Free Waterproofing Estimate

Tell us what you're seeing and when it happens. We'll follow up to set a time to look.

Prefer to talk? Call or text (360) 470-4956. We use your details only to respond to your request.

Common signs

Signs water is getting into your crawl space

  • Seepage along the walls

    Water coming in where the foundation meets the soil, or through the walls themselves.

  • Stains or damp walls

    Dark patches, water lines or a damp look on foundation walls and piers.

  • Puddles after rain

    Water that shows up in the crawl space during or after storms.

  • Wet soil under the plastic

    Mud or moisture trapped beneath an existing barrier.

  • Moisture on pipes and framing

    Condensation or dampness on ducts, plumbing and wood.

  • A musty smell inside

    Damp crawl space air can make its way up into the house.

How it helps

What crawl space waterproofing really means

Waterproofing is a general term for keeping water from causing problems in your crawl space. In practice, it's usually a combination of steps: collecting and draining water, moving it out with a sump pump if needed, and protecting the ground and walls with a sealed liner.

Which of those steps your home needs depends on where the moisture comes from and how it's getting in. Two crawl spaces with wet soil can need very different solutions.

  • Identify entry points and where water collects
  • Manage liquid water with drainage and, if needed, a sump
  • Protect the ground and walls with a liner
  • Explain the plan and priorities before any work starts

We'll look outside, too

Gutters, downspouts and the slope of the ground around your home can send water toward the foundation. If an outside fix will help, we'll tell you, even if it's something you can handle yourself.

Liner sealed up insulated foundation walls in a finished crawl space
Liner sealed up the foundation walls on a finished project.

Know the difference

Waterproofing, drainage and encapsulation aren't the same thing

They're often sold as if they're interchangeable. Here's how they actually differ.

Drainage

Collects water that enters the crawl space and carries it to a discharge point or sump.

This page

Waterproofing

The overall plan for keeping water from causing problems. Usually combines drainage, a sump and protective liners, based on the cause.

Encapsulation

Seals the crawl space with a liner over the ground and walls to control moisture. Works best once liquid water is handled.

Real project photos

Water problems we see, and finished work

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

The right waterproofing plan starts with an accurate answer about where the water comes from. That's what you'll get from us.

  • 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. 1

    We listen

    Call, text or send the form and tell us what you have noticed.

  2. 2

    We inspect

    We trace how water gets in: walls, soil, low spots, and what's happening outside.

  3. 3

    We explain

    We walk you through what we found and what matters most.

  4. 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.

— Zach Auld

Fast, affordable, and friendly. … they did a fantastic job.

— Bobby Shaffer

He cleaned up the entire crawl space!!

— Henry Rettinger

Questions

Crawl space waterproofing questions

What's the difference between waterproofing and encapsulation?

Waterproofing is about managing water: where it comes in, where it collects and how it gets out. Encapsulation seals the crawl space with a liner to control moisture. Many homes need some of both, but encapsulating without handling liquid water first usually doesn't work.

How do you figure out where the water is coming from?

We look at where water collects, marks and stains on the walls, the soil, the condition of any existing barrier, and the outside of the home. Your description of when it happens, like after heavy rain, helps a lot.

Can you guarantee my crawl space will stay dry?

No honest contractor can promise that for every home. We design the plan around your conditions and explain what it's meant to handle. If there are limits, we'll tell you up front.

Is water in my crawl space an emergency?

Usually not, but it isn't something to ignore. Ongoing moisture can damage insulation, wood and anything stored down there over time. If there's a lot of water or it's rising quickly, call us.

Do you work in my town?

Our service area includes Longview, Kelso, Castle Rock, Camas and Vancouver and surrounding Southwest Washington communities. Send your city or ZIP with the form and we'll confirm we can get to you.

How do I get an estimate?

Call or text (360) 470-4956, or fill out the form on this page. We'll talk through what you're noticing, set up a time to inspect, and give you a clear waterproofing estimate.

Find out how water is getting in

Call or send the form. We'll inspect, explain the cause, and recommend only what your crawl space needs.

Call Now Free Estimate