Foundation Repair & Basement Waterproofing in Kansas City, KS

Does your home or commercial property have bowing foundation walls, sinking concrete slabs, or leaky windows in the basement? There is no reason to worry — Thrasher Foundation Repair is your trusted expert, providing solutions for these problems and so much more since 1975.

Contact Thrasher Foundation Repair to schedule a free inspection and cost estimate on any of our reliable services, including basement waterproofing, foundation repair, crawl space encapsulation, and concrete repair. We proudly serve Kansas City, KS and nearby areas.

Testimonials From Kansas City
Thrasher was exactly what I was looking for to fix my concrete. Bobby was straight forwards, professional,...
Testimonial by Roy B. from Kansas City, KS
I chose Thrasher because their solutions helped my peace of mind in my crawl space!
Testimonial by Ruby E. from Kansas City, MO
I am really happy with the work Thrasher did. I want them to come do my driveway now!
Testimonial by Gary M. from Kansas City, KS
Reviews From Kansas City
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Durable home foundation repairs in Kansas City

No matter how small the foundation damage may seem, problems can worsen and impact other areas of a home or building, leading to issues like sticking windows and doors, cracked drywall, a tilting chimney, and moisture intrusion. From cracked foundation floors to bowing basement walls and foundation settlement, Thrasher Foundation Repair provides permanent solutions for these structural problems.

Home Foundation Problems We Fix:

  • Foundation settlement & sinking
  • Sticking windows & doors
  • Tilting chimneys
  • Tilting & bowing walls
  • Cracked foundation walls & floors
  • Collapsing retaining walls
  • Sagging crawl space
  • Uneven floors

Our House Foundation Repair Products:

  • Crawl space support posts
  • Push piers & helical piers
  • Wall anchors
  • Street creep repairs
  • Foundation wall brace & beams
  • Carbon fiber wall straps
  • Foundation settlement repair
  • Foundation crack repair

Schedule a free foundation inspection and service estimate to get personalized repair solutions for your property. We proudly serve Kansas City and nearby areas in Kansas.

Lasting basement waterproofing system in Kansas City

If your home or building has leaky basement windows, damp walls, excess condensation, mold, or other moisture intrusion problems, contact the basement waterproofing experts at Thrasher Foundation Repair.

We can eliminate basement flooding and leaking with a patented waterproofing system customized to suit any property, creating a dry below-grade space and keeping it that way for years to come! We proudly serve Kansas City and nearby areas in Kansas.

Schedule a free basement waterproofing inspection and service estimate to learn more. We proudly serve Kansas City and nearby areas in Kansas.

Our basement waterproofing system includes the following:

  • Interior drainage systems
  • Sump pumps
  • Vapor barriers
  • Mold treatment
  • Dehumidifiers

Crawl space repair & encapsulation services in Kansas City

Do you have a musty, wet, humid crawl space in your home or building? Don’t deal with the mess on your own. Contact the crawl space encapsulation and repair professionals at Thrasher Foundation Repair! We provide a suite of crawl space solutions designed to create a drier, more secure area, including a moisture-proof vapor barrier, crawl space doors, crawl space support jacks, and more.

Concrete repair & concrete leveling experts in Kansas City

If you’re tired of sinking, cracked driveways, pool decks, sidewalks, or other concrete slabs around your property, contact the concrete repair professionals at Thrasher Foundation Repair. We offer simple, innovative solutions far superior to standard mud jacking or concrete replacement. Our cracked concrete repair, leveling, and sealing systems are installed with no mess or stress. Plus, they are quick to cure so you can use your slabs soon after installation.

Never worry about UV rays, debris, gas, water, or other liquids ruining your slabs. Our solutions are incredibly durable and address the underlying cause of concrete damage, meaning you get lasting results that save you money!

Schedule a free concrete repair estimate to learn more. We proudly serve Kansas City and the surrounding areas.

Our concrete repair solutions:

  • PolyLevel®® concrete leveling
  • NexusPro™ cracked concrete repair
  • SealantPro™ concrete sealing
  • Commercial concrete repairs
  • Driveway repairs
  • Pool deck leveling
  • Sidewalk repairs
  • Step repairs

The Thrasher Difference.

No matter the job - we aren't going to feel good about the hard work we've done until you're happy. So we'll do it right or make it right. That's the Thrasher promise.

For the last 45 years in the basement and foundation repair industry, we've focused on the value of doing whatever it takes to get the job done and "wow" our customers every step of the way.

Explore The Thrasher Difference

Before and After Pictures from Kansas City
Poor Wall Anchors Replaced in Kansas City, KS

Poor Wall Anchors Replaced in Kansas City, KS

Before After
Poor Wall Anchors Replaced in Kansas City, KS Poor Wall Anchors Replaced in Kansas City, KS

This homeowner was planning on moving in the coming years, so she knew that she needed to fix any issues so that she could get full value for her home. She called another foundation repair company come to fix her foundation walls, however their anchors were not fixing the wall bowing issues. Frustrated by this solution failing, she decided to give us a call.

We sent System Design Specialist Daryn Britton to inspect the previous wall anchors, determine why the walls were still bowing, and design a solution to fix the walls permanently. Daryn found that the previous anchors had a few problems such as not being installed correctly and that the hydrostatic pressure against the walls was stronger than the anchors were. He knew that these walls could be fixed with anchors that were stronger than the pressure as well as installed correctly, so he called for an installation team to properly fix these walls. One of our installation teams answered the call and came to the home installing GeoLock Wall Anchors on the failing walls.

The homeowner was extremely happy with the outcome. She was so excited, that she even scheduled a waterproofing appointment with us to take care of any and all water problems she was having in her basement. Check out the newly installed GeoLock Wall Anchors!

Sidewalk Repair in Kansas City, KS

Sidewalk Repair in Kansas City, KS

Before After
Sidewalk Repair in Kansas City, KS Sidewalk Repair in Kansas City, KS

This sidewalk was causing tripping concerns for this customer, as the concrete started to sink. Our crew used PolyLevel foam to spray underneath the concrete filling any voids and lifting the sidewalk back level. Looks brand new again! 

Concrete Leveling around Pool and Driveway in Kansas City, KS.

Concrete Leveling around Pool and Driveway in Kansas City, KS.

Before After
Concrete Leveling around Pool and Driveway in Kansas City, KS. Concrete Leveling around Pool and Driveway in Kansas City, KS.

Roy is a retired Law Enforcement Officer, who is looking at downsizing his home. Before making this decision, on whether to stay, or sell, he knew he needed to get his concrete issues addressed. There was cracking and settlement around his pool deck, driveway, and walkway to the front porch. Roy has used mudjacking in the past, which did not help with his existing problems. Having unsealed joints and cracks allow for moisture to get under the concrete, causing mudjacking to be ineffective, as it allows for soil settlement.


For this project, PolyLevel foam was used in areas under the concrete to fill voids, and lift the sunken areas. NexusPro was then used to seal the cracks and joints of the concrete. This will help prevent water from pooling under the concrete, causing soil settlement. Concrete leveling services are backed by a 5-year warranty that is transferable with the home. 


Thrasher was exactly what Roy was looking for to fix his concrete. He let our Design Specialist, Bobby, know that he was straightforward and very professional, and he was impressed with the transferable warranty. 

Recent job requests in Kansas City, KS

Neighborhood: Kansas, Kansas City, 66102

Neighborhood: Steele Rd, Kansas City, 66111

My house is showing signs of the foundation shifting, such as doors being difficult to close, then changing to being too loose. There are also some cracks in the upstairs wall and stairs to the basement look like they're pulling away from the wall.

Neighborhood: Georgia Ave, Kansas City, 66104

I had bad leaks with the lastest ran Wednesday and I feel the just came in in.

Neighborhood: S. Clinton St., Kansas City, 66061

Patio has a void underneath it due to pests (rabbits, squirrels etc) and wanting it filled to prevent future problems.

Neighborhood: Sewell Ave, Kansas City, 66109

I have a patio in the backyard that is sinking towards the house I would like to have looked at is main concern. I also have some sidewalk cracks I would like to have looked at also and looking to get an estimate on. Looking to set up an appointment.

Neighborhood: Kansas City, 66106

Neighborhood: Farrow Ave, Kansas City, 66109

Driveway and entryway sidewalk needs leveling and repair.

Neighborhood: Kansas City, 66102

Neighborhood: Kansas City, 66109

I seem to have a hole in my foundation that's leaves water in my basement when it rains heavy

Neighborhood: Kansas City, 66106

Service: Water in my basement

Neighborhood: Kansas City, 66106

Cracks on walls and uneven floor surface

Neighborhood: Kansas City, 66111

Sinking back half of house.

Neighborhood: Kansas City, 66106

There is a crack in the slab along one outside wall.

Neighborhood: Kansas City, 66109

Brick wall cracked on two sides of corner

Neighborhood: Kansas City, 66106

Water overshoots our gutters during heavy rain. Also interested in gutter guards.

Neighborhood: Kansas City, 66109

We have uneven and cracked areas of sidewalk. We also have cracks in our driveway.

Neighborhood: Kansas City, 66109

I have seepage, weeping walls and water entering the basement from around the window.

Neighborhood: Kansas City, 66111

Back patio has been mudjacked and cracks need repaired.

Neighborhood: Kansas City, 66106

Crack driveway and back porch slab sinking

Neighborhood: Kansas City, 66104

Water is coming from east absent wall.
Job Stories From Kansas City, KS
Back Patio Repair in Kansas City, KS

This homeowners patio had dropped over the years and started to crack. He uses the back patio to grill and relax, but couldn't use this space will all of the issues it was having. He called up Thrasher because he knew of our quality work. He wanted to be able to relax and use this patio without worries, and knew Thrasher would be able to provide a great solution for him. System Design Specialist, Daryn Britton, came out to meet with him. Daryn noticed there was washout under the slab and soil failure, causing the slab to drop and crack. He proposed we use our Polylevel to lift and level the slab, and the NexusPro to seal the joints and cracks. This homeowner was so impressed with the outcome of the work that he has called us back for his driveway repair. There is no doubt that he is relaxing and grilling with ease now. 

Foundation Repair in Kansas City, KS

A homeowner in Kansas City, KS was getting ready to put his home on the market. He noticed that the garage was settling in spots. Upon inspection, our design specialist was able to come up with a custom solution that would help fix the settlement and create a stable foundation. The crew installed push piers to stabilize the foundation. Then to fix the areas of the garage floor that had settled we used PolyLevel to bring the floor back up to level. 

Kansas, City, KS Basement had Waterproofing Installed

Alonzo C. wanted to create more space for his family in the basement but wanted to make sure there wasn’t any leaking water. Looking for a possible basement waterproofing solution, he decided to give us a call.

System Design Specialist Kenny stone went out to the home and was able to identify water was leaking on a couple of walls, causing problems with keeping the basement dry. To keep the basement dry we installed WaterGuard, a sump pump system, a TrenchDrain system and CleanSpace.

Not only was Alonzo please with the work done, but he felt comfortable moving forward because of how the problem and solution was explained and the customer service he received along the way.

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