Expert Basement Waterproofing Company in Kansas City, MO

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Thrasher Foundation Repair is your leading basement waterproofing company for your Kansas City home. With over 45 years of experience, our skilled team of structural engineers will install interior waterproofing systems, crawl space repair solutions, mold remediation techniques and egress windows. Our basement waterproofing contractors come to your home free of charge and obligation to inspect the problem area and provide a written estimate. Contact us today to schedule your appointment for your free estimate!

Trusted Basement Waterproofing Services in Kansas City

At Thrasher Foundation Repair, we offer proven solutions for your wet basement. Our basement waterproofing systems will keep your basement water and moisture free for years to come. We identify the cause of the problem and install the right basement waterproofing solution for your unique situation.

Egress windows

Our state-of-the-art egress windows come fully equipped with a 10-year warranty and a 5-year workmanship guarantee. We abide by all coding regulations and handle all permits. Our process for egress window installation is simple:

Interior waterproofing system

With more than 45 years of experience, Thrasher has a reputation for providing high-quality, long-lasting basement waterproofing solutions. We have access to more than 30 patented basement repair products designed to keep your basement clean, dry, and odor-free.

Sump pumps

Rely on a patented sump pump system installed by Thrasher Foundation Repair to keep your basement dry for years to come.

Dehumidifier

If there is high humidity and musty odors downstairs, it will affect the upstairs environment. For dehumidification in basements and enclosed crawl spaces, we recommend the SaniDry Sedona Dehumidifier. We have installed many different dehumidifiers over the years, and this system is the most effective and energy-efficient we have found.

Get a free estimate

At Thrasher Foundation Repair our priority is efficiency, property protection, satisfaction and respect for you and your home. We proudly serve Kansas City, MO and nearby. Contact us today to schedule your free estimate.

Why your Kansas City basement is wet

Your basement may be wet due to flooding. A wet basement can cause wood damage, dry rot damage, mold problems and other unnecessary issues in your home. Although the nature of the problem isn’t always clear, the expert basement waterproofing contractors at Thrasher Foundation Repair strive to find the root of the problem to give you a one-time fix. Contact our skilled basement waterproofers to schedule your free estimate!

Recent job requests in Kansas City

Neighborhood: Kansas City, 64155


Water coming up through small cracks in the floor. Have a separate area where water is coming in due to a foundation crack.

Neighborhood: Kansas City, 64119


Water is seeping up through my basement floor. I suspect the sump pump is not working.

Neighborhood: North Liberty Street, Kansas City, 64118


Basement and garage flooded from storms in NKC last night. Looking for estimate, requesting John Cronk if possible. Service Selected: Water in my basement

Neighborhood: Kansas City, 64117


After heavy rainfall we are getting water coming in through the floor in our basement.

Neighborhood: Poplar Ave, Kansas City, 64136


Bowing Walls

Neighborhood: Kansas City, 64119


Water leaking into basement by retaining wall

Neighborhood: Oakmont Drive, Kansas City, 64145


Water gets into basement

Neighborhood: Central Street, Kansas City, 64113


Water is entering my basement through two stone walls in my foundation

Neighborhood: Kansas City, 64155


Cement stairs are tearing away from house

Neighborhood: Kansas City, 64131


Every time it rains, I get water in my basement. Service Selected: Water in my basement

Neighborhood: N Garfield Ave, Kansas City, 64155


Concrete repair

Neighborhood: N Harrison St, Kansas City, 64155


Service Selected: Foundation cracks or sinking Selected Appointment: Tue, May 26, 2026 @ 11:00 AM Salesforce ID: 08pUH000005aaOfYAI Salesforce Appointment #: SA-1119678

Neighborhood: N Kingston Ct, Kansas City, 64119


A small or crack in basement wall. Service Selected: Something else

Neighborhood: Kansas City, 64114


After recent spring rains, we are getting standing water in our crawlspace mostly in one corner (dirt floor) and identified a crack forming on one wall. Would like to inspect and estimate on diagnosing issue and any repairs needed

Neighborhood: Spring Valley Road, Kansas City, 64134


I have water leaking into my basement from cracks and holes in the floor and its also leaking through when the wall meets the floor.

Neighborhood: Kansas City, 64114


I'm having issues with water in my basement , foundation cracks.

Neighborhood: Kansas City, 64134


Shifting due to external water damage

Neighborhood: N Marston Ave, Kansas City, 64151


Foundation cracks or sinking

Neighborhood: Kansas City, 64114


We have an old century home in the Waldo neighborhood. Walls and ceilings are showing stair step cracking and other signs of foundation issues.

Neighborhood: Kansas City, 64153


Mud or poly jacking to fill a void under concrete basement. Service Selected: Something else