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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.


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, 64118

After heavy rains there are a few areas leaking in the basement. One is a vertical crack. The others are near the floor area. We would like it to be evaluated.

Neighborhood: Kenwood Ave, Kansas City, 64110

100 year old stone basement with settling primarily south east corner.

Neighborhood: Kansas City, 64155

Have a crack in the basement floor that is offset by approximately 3/8". Also have issues with windows/doors opening and closing

Neighborhood: North Tracy Avenue, Kansas City, 64118

Cracks on the inside foundation wall in downstairs garage. Can't recall if it had been present or if it's new. Doors and windows in house still easy to open/close.

Neighborhood: Kansas City, 64116

A portion of our concrete front stoop has cracked and is unlevel. We would like to get an estimate for poly services to level it back up.

Neighborhood: N Highland Ct, Kansas City, 64118

Sections of my driveway next to street curbing needs to be raised even with curbing

Neighborhood: Kansas City, 64145

Sidewalk from driveway to front door is sinking. Would like to get an estimate to fix this problem

Neighborhood: Wabash Ave, Kansas City, 64124

100+ year old house has floors in upper levels that are no longer level - wanted to see if we could level out from the basement via hydraulic jacks or some other method

Neighborhood: Kansas City, 64134

Patio and driveway leveling

Neighborhood: Kansas City, 64112

Front porch is three sections, two need lifting

Neighborhood: NW Roberts Rd., Kansas City, 64152

There is a void between the ground/dirt and my poured-in-place concrete foundation.

Neighborhood: Kansas City, 64138

Neighborhood: Kansas City, 64116

Garage is sunk 1.5 inches, crack in garage. Foundation settling

Neighborhood: Kansas City, 64137

Neighborhood: Kansas City, 64131

One side of garage slab cracked and shifting

Neighborhood: Kansas City, 64133

Service: Water in my basement

Neighborhood: Kansas City, 64116

Service: Concrete repair

Neighborhood: Kansas City, 64119

I believe there is a crack in the basement wall that is leaking every time it rains.

Neighborhood: Kansas City, 64114

Need one egress window placed where regular basement window is currently.

Neighborhood: Kansas City, 64117

My front sidewalk is dipping and holds water when it rains