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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: College Avenue, Kansas City, 64137


A crack has shown up on the south foundation wall of my home. Service Selected: Foundation cracks or sinking

Neighborhood: Oak Street, Kansas City, 64114


Basement and garage floor sinking toward the middle

Neighborhood: Pennsylvania Ave, Kansas City, 64114


Doors not shutting, cracks in dry wall Service Selected: Foundation cracks or sinking

Neighborhood: Askew Ave, Kansas City, 64137


Basement wall seems to be bowing at near the floor. Nothing is leaking, but the drywall is cracking.

Neighborhood: Belleview Avenue, Kansas City, 64114


We bought our house in April 2025. The structural engineer that inspected the house brought some minor foundation issues to light that he mentioned should be done in the next few years and we would like to see how much the repairs would cost and if they need to be done immediately

Neighborhood: Walrond Avenue, Kansas City, 64128


Need an estimate on foundation repair. The main house is stone foundation but first floor flooring is kinda uneven. The main problem is the extension of the house that is concrete blocks foundation with a crawl space. The door in that extension leads to the backyard is stuck and wont open as the extension of that part of the house is leaning into it. On the second floor you can really feel the lean of the foundation sinking towards the backyard.

Neighborhood: Kansas City, 64110


Foundation cracks or sinking

Neighborhood: Kansas City, 64130


Foundation cracks or sinking

Neighborhood: North Virginia Avenue, Kansas City, 64155


Cracks in the basement floor and garage.

Neighborhood: Kansas City, 64130


Garage floor and driveway repair for a duplex

Neighborhood: Cheyenne Circle, Kansas City, 64116


Hello, there are some cracks in the wall of my unfinished basement that can leak water when it rains.

Neighborhood: N Lewis Ave, Kansas City, 64157


Foundation cracks or sinking

Neighborhood: Jefferson Street, Kansas City, 64108


Our house needs to be leveled.

Neighborhood: Kansas City, 64152


I have a horizonal crack above and to the left of the entry door. The door is not closing correctly. This is on a rental property.

Neighborhood: Holmes, Kansas City, 64131


Concrete repair

Neighborhood: Kansas City, 64114


The foundation on one side of our house has sank a little bit and parts of our walls looks like they may be pulling apart where the basement meets the crawl space.

Neighborhood: North Highland Court, Kansas City, 64155


We have cracks in walls and doors will not open easily.

Neighborhood: Kansas City, 64114


Structural engineer suggests epoxy injections in basement cracks. Would also like an inspection of wall braces. Home is 100 years old.

Neighborhood: Woodland, Kansas City, 64106


Water in my basement

Neighborhood: Kansas City, 64130


Concrete repair