Crawlspace help · Thurston County
Crawlspace Flooding & Water Removal in Thurston County
Long rainy seasons and high groundwater put water under many Thurston County homes. Get connected with an independent local restoration company to pump it out, dry the crawlspace and deal with wet insulation.
- Standing water pump-out
- Wet insulation & vapor barrier removal
- Drying with moisture readings
Call to connect with a local restoration pro. Your call may be routed to a participating independent company. We are a referral service, not a contractor.
or send the form
What happens next
- You send the form. It takes a couple of minutes.
- We pass it on. A local restoration company that serves your ZIP gets your request.
- They contact you. They arrange a time to look at the damage. You decide if you want to hire them.
First 3 things to do right now
- Shut off the main water valve.
- Turn off power to wet rooms, if it is safe.
- Take photos of the damage for your insurance.
Quick answers
Is some water in a crawlspace normal?
Answer: A damp soil surface after heavy rain can happen, but standing water, a soaked vapor barrier or wet insulation is not something to leave. It raises humidity under the house and can lead to mold and wood rot.
What causes crawlspace flooding here?
Answer: Common causes are heavy winter rain and high groundwater, gutters and downspouts draining next to the foundation, a failed sump pump, and plumbing leaks under the house.
Who do I call?
Answer: Call 844-933-9050 or use the form on this page. We connect Thurston County homeowners with an independent local restoration company.
How we choose partner companies
What we check
We only send requests to companies that work in Thurston County. We ask each one for its license or registration (where the state requires it) and proof of insurance. We do not do the work, and we can't promise how a job turns out.
Check them yourself
Before you sign anything, look up the company's license and ask for proof of insurance.
- Washington L&I contractor lookup
- IICRC certified firm locator (ask if the crew is certified)
Who runs this site
Olympia Water Damage Restoration is an independent, free referral service that connects homeowners with local companies. Your request is shared with at most 1–3 companies. We don't sell your info for other marketing.
Why Thurston County crawlspaces get wet
Many homes in Olympia, Lacey, Tumwater and Yelm are built over crawlspaces, and the South Puget Sound's long rainy season keeps soils saturated for months. Areas with high groundwater or poor drainage, and homes near low ground around rivers and prairies, see water rise into crawlspaces during heavy rain.
Inside the crawlspace, water can also come from a leaking supply line, a drain line, or a water heater or washer leak that runs down through the floor.
Signs of a wet crawlspace
- A musty or earthy smell in the house.
- Higher indoor humidity, condensation on windows, or cupping wood floors.
- Insulation hanging down or lying on the ground.
- Standing water or a vapor barrier that holds puddles.
- A sump pump that runs constantly or not at all.
What crawlspace water removal involves
- Find the source. Groundwater, surface drainage and plumbing leaks need different fixes.
- Pump out water. Standing water is removed.
- Remove wet materials. Soaked insulation and damaged vapor barrier come out as needed.
- Dry. Dehumidifiers and air movers dry the framing and subfloor, with moisture readings until levels are normal.
- Restore and prevent. New vapor barrier and insulation go in. Drainage, sump or encapsulation options can be discussed with the provider.
Help keep it dry
- Keep gutters clear and extend downspouts away from the foundation.
- Make sure soil slopes away from the house.
- Test your sump pump before the rainy season.
- Look in the crawlspace after big storms.
Frequently asked questions
Does homeowners insurance cover crawlspace flooding?
It depends on the source. Sudden plumbing leaks are often covered. Groundwater and surface flooding usually are not covered without a separate flood policy. Your policy and adjuster decide.
Can a wet crawlspace cause mold?
Yes. Wet wood, insulation and subfloor in a closed, dark crawlspace can grow mold, especially in our damp climate. Drying it promptly matters.
What is crawlspace encapsulation?
It means sealing the crawlspace floor and walls with a heavy vapor barrier and controlling humidity, often with a dehumidifier. Ask the provider whether it suits your home and drainage.
Is this service free?
Yes. Connecting with a restoration company through Olympia Water Damage Restoration is free for homeowners. Participating companies pay us for referrals.
Water under the house?
Stay out of standing water near wiring. Call or send the short form and describe what you're seeing.
Call now: 844-933-9050 Get help nowNo obligation, just tell them what happened.