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: N. Wyandotte St., Kansas City, 64155


1. Have horizontal/vertical cracks in the bedroom which is located above the garage. 2. We are seeing additional cracks in the garage floor that have gotten wider over the last few months. 3. Have issues with one of the garage doors not closing all the way creating a gap at the bottom. 4. Have other areas of the home with small cracks which need to be looked at. 5. We have a driveway which has some areas sinking. 6. Need a full review of all of these issues.

Neighborhood: Kansas City, 64116


Foundation cracks or sinking

Neighborhood: Main Street, Kansas City, 64114


I'm moving into a new home, and inspections revealed that the crawl space has moisture issues along with cracks and a leaning wall.

Neighborhood: Ward Parkway, Kansas City, 64113


Cracks on basement floor and wall

Neighborhood: Admiral Blvd., Kansas City, 64106


Concrete repair

Neighborhood: Kansas City, 64131


Drywall crack, doorway issue trouble shutting door, floor issue.

Neighborhood: Kansas City, 64131


Water coming into basement Service Selected: Foundation cracks or sinking Selected Appointment: Fri, Jul 17, 2026 @ 8:00 AM Salesforce ID: 08pUH000006Bj3BYAS Salesforce Appointment #: SA-1145334

Neighborhood: N. Michigan Ave, Kansas City, 64116


Concrete repair

Neighborhood: Kansas City, 64152


Concrete repair

Neighborhood: N. Randolph Avenue, Kansas City, 64157


There is a small crack on the outside wall that is allowing drips of water to come through when it rains. The crack is behind 2 studs, in the corner, of our unfinished basement.

Neighborhood: N. Park Ave., Kansas City, 64116


Foundation cracks or sinking

Neighborhood: Kansas City, 64118


We have stopped rain runoff with French drain system and wall, now concrete needs raised

Neighborhood: NW Woody Creek Ln, Kansas City, 64151


Cracks in foundation wall, water in basement

Neighborhood: Kansas City, 64114


Large Crack south side of foundation causing intermittent water in the basement

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