Wet Basement Services

What They Do

Water DamageMold

• Basement Drainage Systems
• Basement Waterproofing Drainage Installation
• Exterior Drainage Systems
• Interior Drainage Systems
• Water Intrusion Solutions
• Exterior Basement Waterproofing
• Interior Basement Waterproofing

In Their Own Words

Wet Basement Services is a division of Greenwood International, which deals specifically with wet basement/homes and mold related issues. Wet Basement Services begins with stopping water problems, but the work doesn’t stop there... WBS addresses the real threat that result from un-addressed water problems; which is mold and decay! Serving the Greater Seattle area for over four decades, we are committed to the industries best standards with all of our services. Our mission is to make basements habitable again, free from mold and water intrusion. Dive into our website to see our basement waterproofing and mold control services in Seattle, Bellevue, Redmond, Kirkland and surrounding cities along with detailed problem signs and causes.

Written by the business on its public profile. We have not verified these claims.

Before You Call Wet Basement Services

1. Do you take moisture readings every day and will you give me the drying log?
2. Are your technicians certified in water damage restoration?
3. Where do you think the moisture is coming from, and who fixes it?
4. Will you set up containment and negative air, and how will you protect the rest of the home?

Ask for the company’s contractor registration number and look it up with the Washington State Department of Labor and Industries. Also ask for proof of insurance and industry certification for the technicians.

How Their Reviews Break Down

Counts from public listings as of September 23, 2026. A handful of reviews says less than a few hundred.

Read This While You Wait

• DIY with careWhat to Do in the First 24 Hours After Water DamageAn hour by hour plan for the first day after water damage. Make it safe, stop the source, document, remove water and start drying before mold can start.
• DIY with careSafe DIY Mold Cleanup for Areas Under 10 Square FeetA step by step method to clean up mold under 10 square feet safely, with the gear to buy, what to throw away, why bleach is not the default, and when to stop.
• DIY friendlyWasher, Dishwasher, Fridge and Toilet Supply Line LeaksHow washer hoses, dishwasher lines, ice maker tubing and toilet supply lines fail, how to clean up each kind of leak, and how to replace a line yourself.
• DIY with careAttic Mold on Roof Sheathing, Causes and FixesWhy mold grows on attic roof sheathing, how to find the cause, the fixes that stop it for good, and how to tell a cosmetic stain from a roof that needs work.