Concrete Repair, House Foundation Repair & More in Kansas City

Thrasher, experts in house foundation repair, basement waterproofing and concrete repair in Kansas City, Missouri, are no strangers to the charm and extreme weather of this vibrant city. So whether you stay for the tasty barbecue, the lively jazz scene, or our cherished sports franchises, the Chiefs and the Royals, there are plenty of reasons to love Kansas City. Kansas City is also one of the most populated municipalities throughout Missouri. So many of our customers among the River Market District in the north, the 18th and Vine District in the east, and the Country Club Plaza in the south call this city home. The city even stretches across multiple counties, including Jackson County, Clay County, Cass County, and Platte County. And while there is much to love about Kansas City, the climate can be a bit unpredictable. With humid summers, cold winters, damaging ice storms, and some areas being subject to flooding, the extreme weather fluctuations are enough to stress any sensible homeowner. That is where Thrasher Foundation Repair can help.

From expansive soils to foundation heave and basement flooding, we have a variety of solutions to combat all kinds of problems that face Kansas City homeowners. We can even prepare your home before the bad weather hits with reliable house foundation repairs, basement waterproofing services, crawl space repairs, and concrete repairs. Contact Thrasher Foundation Repair to see how we could help your home stand up to the Missouri climate and schedule a free service estimate today!

Testimonials From Kansas City
We are very happy with our dry basement and excited to use it again without worry! We were so impressed with...
Testimonial by Ervell and Angela B. from Raytown, MO
I am super happy with the work that was done and I'm relieved that I don't have to worry about my other...
Testimonial by Rodney B. from Raytown, MO
I couldn’t be more excited to have this project done, you guys did a great job!
Testimonial by Erikson B. from Kansas City, MO
Contact Us For
An Estimate!
Click House icon to view requests in Kansas City

Concrete repair & concrete leveling experts in Kansas City

Kansas City's ever-changing climate can weaken your slabs, causing the load-bearing soils to contract, dry out, or even wash away. This means without sufficient support, the slab will start to sink and crack. The changes in temperature and moisture can also cause concrete to crack, flake, and stain. So 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 that are far superior to the standard mudjacking or concrete replacement. Plus, our solutions last all year round, withstanding harsh weather, extreme temperatures, chemicals, UV rays, liquid, debris, and more.

Our cracked concrete repair, concrete leveling, and concrete sealing systems install with no mess and no stress. Plus, they are quick to cure, so you can use your slabs soon after installation. 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


Durable house foundation repairs in Kansas City

Kansas City is known for its extreme weather fluctuations – and as stressful as it can be to prepare your family for the hot summers and icy winters, the foundation can be negatively impacted if not protected as well.

As the temperature and weather patterns change, this can cause the soil around the foundation to expand from moisture and freezing and contract when it is hot and dry. This can lead to foundation settlement, cracks from pressure, bowing walls, and other foundation problems. The high temperatures and lack of rain can also dry out the foundation, which can weaken the structure, cause cracks, and leaks.

But there is no reason to worry. Unlike other contractors, Thrasher Foundation Repair does not provide one-size-fits-all solutions. We understand that every home is different and depending on where you live in Kansas City, your foundation problems may need a more personal touch. In fact, we have been providing customizable and permanent house foundation repair solutions to homeowners since 1975. So no matter how serious the foundation damage may seem, you can trust us to provide repairs tailored to your home and will continue to protect you in future seasons!

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
  • Sagging garage door lintels

Our 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 house repair solutions for your property. We proudly serve Kansas City and nearby areas in Missouri.

Waterproofing contractor in Kansas City providing lasting solutions

With Kansas City’s extreme weather fluctuations, there is plenty to worry about when keeping your basement dry and secure. Not only can expansive soils, foundation heave, and dry air cause leaky cracks in the below-grade space, but Kansas City is also a part of the humid subtropical zone, meaning the summers are long, hot, and humid. This is bad news for basements, as once outside air touches cold appliances, condensation forms, creating the perfect breeding ground for mold. Plus, outlying areas in Kansas City are subject to flooding, putting those homes even more at risk.

Being proactive is the best way to keep your basement dry and safe in the ever-changing Kansas City climate – and Thrasher Foundation Repair knows just what to do to help. As experienced waterproofing contractors, we have provided reliable basement waterproofing solutions for homeowners since 1975, eliminating basement flooding and moisture intrusion problems and keeping their below-grade spaces dry for years.

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

Our basement waterproofing system includes:

  • Interior drainage systems
  • Sump pumps
  • Mold treatment
  • Dehumidifiers
  • And more!

Crawl space repair & encapsulation services in Kansas City

The crawl space can already be a nasty, humid place, creating the perfect breeding ground for mold and pests. But since Kansas City is known for its long, hot, and humid summers, this can be very detrimental to the crawl space. Plus, some areas of the city are prone to flooding – and if your crawl space isn’t secure, this could cause serious problems for your home. Once you factor in the extreme temperature fluctuations common in Kansas City, you could have quite the problem on your hands. The humid, hot summers and icy, cold winters can cause foundation heave and expansive soils, creating a weaker structure overall and causing leaky cracks in the below-grade space.

So when it comes to creating a dry and secure crawl space, trust the experts who have been providing these services since 1975. Our crawl space encapsulation and repair solutions seal off your space the elements and even stabilizes it, assuring a moisture-proof area that is protected for years to come. We proudly serve Kansas City and the surrounding areas.

Our crawl space repair system includes:

  • Crawl space vapor barrier
  • Crawl space insulation
  • Crawl space support posts
  • Crawl space dehumidifiers
  • Crawl space sump pumps
  • And more!


Schedule a free inspection & service estimate in Kansas City

Create a drier, more secure, and valuable home with the foundation repair, basement waterproofing, and concrete repair experts at Thrasher Foundation Repair. We will provide an experience so remarkable you’ll give us a five-star review — that’s the Thrasher promise!

We offer free service estimates throughout Kansas City and nearby in Missouri. Schedule a free inspection and service estimate to learn more!


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

See all Before & After

Case Studies From Kansas City
A whole host of problems needed to be addressed to allow this family of eight to live comfortably and safely in their home. Lindsey and Adam and...
Water in the basement kept this homeowner from enjoying more living space. Thrasher installed an exterior waterproofing system and helical tiebacks...
Private Business Hanger In Kansas City International Airport Settling On Three Sides, Repaired Thrasher Foundation Repair installed resistance piers...
In addition to all services we provide to residential customers, Thrasher provides specialized commercial services for existing and new...
Recent job requests in Kansas City, MO

Neighborhood: Kansas City, 64155

Front concrete step settling.

Neighborhood: N Marsh Ave, Kansas City, 64158

New home has water in one area of the basement. Unfortunately, this is the only fished room downstairs.

Neighborhood: Kansas City, 64119

Front steps and side steps need filling in underneath

Neighborhood: Kansas City, 64133

Neighborhood: Gladstone Blvd, Kansas City, 64124

Front porch settling and needs refinishing work.

Neighborhood: N Woodland Ave, Kansas City, 64118

Water leaks through foundation cracks when it's a very heavy rain.

Neighborhood: Sunnyslope Dr, Kansas City, 64134

It looks like my front steps have sunk by a couple of inches or so.

Neighborhood: Kansas City, 64137

Service: Concrete repair

Neighborhood: Kansas City, 64155

Crack in between fron door steps

Neighborhood: W Navajo Lane, Kansas City, 64114

Foundation slab has a dip. Cracks in walls. Needing driveway repair and porch lifted.

Neighborhood: Kansas City, 64110

Service: Water in my basement

Neighborhood: Tracy Avenue, Kansas City, 64110

This person has filled out the Star Power Pro survey on that you sent them and is interested in another service you provide: Crawl Space Repair. Please contact them to schedule a new appointment for this service. This is a no-charge lead.

Neighborhood: North Willow Ave., Kansas City, 64157

Driveway and stairs sinking

Neighborhood: Kansas City, 64137

Service: Concrete repair

Neighborhood: Kansas City, 64157

I have sticking doors and windows seals cracked. I have cracked walls and recently, I feel as though my hardwood floors have sank in a spot. The floors upstairs under my carpet are squeaking after someone takes a step.

Neighborhood: Kansas City, 64114

Backyard slab is uneven amd wanted to see if this would be a repair option instead of pouring a new slab.

Neighborhood: NE Gladstone Lane, Kansas City, 64119

Water coming through basement wall after heavy rain

Neighborhood: Kansas City, 64118

Our driveway has sunk in, and needs to be raised/leveled.

Neighborhood: Kansas City, 64155

Have cracks in the upstairs entryway and in garage walls

Neighborhood: Applewood Drive, Kansas City, 64134

Job Stories From Kansas City, MO
Concrete Shifting Repair in Parkville, MO

This family loved into their home about 25 years ago and have no plans to move. The neighborhood has changed a bunch over the years, but they love it here. Over those years, they had noticed the concrete starting to shift. They knew they needed to get a professional out to see how they can get this fixed and maintain their concrete. They starting doing research and found Thrasher. Based on our reviews they knew we were the company they could trust to stand behind our work and take care of their issue with a long term solution. System Design Specialist, Brandon Powers, came out to meet with them. Brandon did his inspection and noticed soil erosion had caused several slabs in the driveway, walkway, and back patio to settle and crack. Brandon brought these findings and a solution back to the family. To combat this issue, we used PolyLevel to lift, level, void fill, and stabilize the concrete. We also used NexusPro to seal all joints and cracks throughout. Both of these products are waterproof, preventing any water from getting under the slab and washing out. The family loved this solution and there is no doubt they will not be worrying about any more concrete issues at their forever home. 

Concrete Repair in Raytown, MO

A homeowner in Raytown, MO had lived in their home for many years and had no plans on moving anytime soon. Over the years the concrete in the driveway has been cracking and settling in many places. It has gotten to the point where it is difficult to park the car in the garage and is creating bad tripping hazards all over. They decided it was finally time to get it fixed after all these years, so they decided to give Thrasher a call to have us come out for an inspection. 

After the inspection, the team found they had drainage issues and a downspout that was pouring water next to the driveway causing the soil underneath to wash away. The crew used a downspout extension to move the water down further out away from the home to prevent any further washout. Then to repair the concrete our crew decided to use PolyLevel foam to fill the voids under the concrete and raise it back into the original place making the ground level once again. PolyLevel expands under the slab to give the concrete extra support without adding any extra weight to the soil below. 

After the work was completed, our customer can now use their driveway without having to worry about any tripping hazards or difficulty parking their car in the garage. They were grateful for how fast our team was able to work and how great it looked when completed. 

Concrete Repair in KCMO

This homeowner was experiencing tripping hazards at his home. He wanted to save it and not replace, but needed professional opinions.  He knew of Thrashers reputation and had heard great things, so he gave us a call. System Design Specialist, Daryn Britton, came out to meet with him. Daryn did his inspection and survey of the area, and found there was failing soil under the slab. This was cashed by washout from rain over the years, along with the very dry season we were having. With little to no support under the slab, it started to sink and crack. Daryn came back to the homeowner with these findings, and together they decided on the best solution for him. They decided we do our 3-Part Concrete Protection System. This includes Polylevel to lift and level the concrete, NexusPro to seal the joints and cracks, and SealantPro to seal the top of the concrete protecting it from spalling and flaking. Polylevel and NexusPro are also waterproof, this prevents any further washout of the soil underneath. The homeowner was very happy and excited to get this project done. There is no doubt he has no more worries of tripping hazards, and have the peace of mind he was looking for. 

Waterproofing in KCMO

This homeowner was hoping to finish out a corner of their basement and add an egress widow so that a bedroom could be added in the basement. They noticed water was coming in through that area, so their plans were at a stand still. They saw our trucks out everywhere as they were driving around for their work, so they did research online and once they saw reviews, they knew Thrasher was  good company. System Design Specialist, Derek Vaksdal, came out to meet with them. Derek surveyed the area to see what work would need to be done. He found a crack in the front wall, allowing water into the basement. It was also discovered that the wall was leaning out due to the stoop leaning out and taking it with it. Fortunately, Thrasher is great company with a large selection of repair products. Derek was able to put together a waterproofing plan that integrated well with their bedroom and coming egress. He also put together a plan to help the stoop and leaning wall by using our Polylevel to stabilize and level it back into place. There is no doubt that after this project this homeowner and his family can happily finish that corner of the basement without worries of water intrusion! 

Semi Finished Basement Waterproofing Solutions - KCMO

This homeowner was wanting to revamp the basement layout and replace the carpet, but had a nagging leak they thought they had fixed with replacing the driveway. They wanted to be able to remodel the basement with a permanent repair, so they can remodel and know with confidence it will be water tight. They had seen our trucks out and commercials on TV and decided to reach out to set up an appointment. System Design Specialist, Derek Vaksdal, came out to meet with them. After doing the free inspection, Derek found an egress window had been placed in the home at some point in time. The wall had cracked in the corner and was allowing water to come into the basement. The exterior concrete was broken and slanting towards the home. They had the concrete replaced and it was leaking, so he knew that wasn't the issue. He found the root of the problem was the clay bowl effect. This issue refers to the natural consequence of excavating and backfilling when building a foundation. When that soil is removed and backfilled, it leaves an empty space in a bowl like shape. This was a unique situation as the egress window created a weak spot without proper drainage inside, so the water was also stacking up the window itself. Derek proposed we use our WaterGuard and CleanSpace, as well as a TripleSafe sump pump to insure their basement stays dry all the time. Cleanspace is installed on the wall and collects any water coming in through cracks. It is a waterproof, tarp like material, so it prevents mold growth. The water comes down the CleanSpace and into our WaterGuard. This is our drainage channel that is installed on top of the footing of the foundation. The WaterGuard then flows the water into the sump pump, and out of the home at a safe distance. The homeowner loved this idea, and we sent out our installation team and got to work. There is no doubt they are back to remodeling their basement without worries of water getting in. 

40 Year Old Concrete Repair in Kansas City, MO

These homeowners were living in their forever home with 40 year old concrete on their driveway. They wanted a solution to get rid of this eyesore. They thought replacing it would be the only option, but then they called Thrasher! One of our System Design Specialists, Thomas Graff, went out to meet with them. Thomas proposed we use PolyLevel to lift and level the concrete, and NexusPro to caulk the joints. He found their expansion joint at the end of the driveway had been sealed overtime, and was causing the issues. In the end, these homeowners were so happy with the results, Thrasher was able to get out there fast, and provide a simpler solution than replacing the whole driveway. There is no doubt that these homeowners are not worried about there driveway anymore! 

Full Foundation and Waterproofing Makeover in Kansas City, MO

This homeowner inherited a family home after the passing of a relative. He knew the house was in poor condition and wanted to sell it; however, due to the foundation and flooding problems, he knew that he would not receive the home's full value if he sold it before working on it. He decided to call us because we knew everything that the house needed.

We sent out System Design Specialist Elliot Moles to the home for inspection. Elliot found that there was hydrostatic pressure resulting in wall failure, and the basement had standing water. Knowing that he would need to think outside the box for this home, Elliot came up with a comprehensive plan for him and his team to help support the foundation and waterproof this home. Elliot and his team utilized a full perimeter waterproofing system in the basement, including a new TripleSafe Sump Pump System. The team then went on to tackle the wall failure next. They supported the walls by utilizing PowerBraces and GeoLocks, which are systems that work on the interior and exterior sides of the home to reinstate the house's original position and prevent new collapsing calls.

The homeowner was thankful that we had all the solutions he needed for this home. He looks forward to selling the house at its full value. 

Driveway Concrete Repair in Kansas City, MO

A homeowner in Kansas City, MO was tired of struggling to pull her car into the driveway. The bottom two slabs had settled and made pulling in difficult. The Thrasher crew was able to fix the concrete. We started with leveling the settled areas with PolyLevel an injectable foam. We then closed the joints and cracks with NexusPro Joint Sealant. 

Concrete Repair in Kansas City, MO

A homeowner in Kansas City, MO noticed the front stoop had some significant settlement. She decided to call Thrasher to stop the settling from getting worse. Our crew used PolyLevel to lift and level the concrete. Then to close the cracks, we applied NexusPro Joint Sealant.

Concrete Repair Solution in Kansas City, MO

Michael H. moved into his Kansas City, MO home four years ago. He started to notice that there was some cracking and settling on the sidewalk. Wanting to maintain the property and fix the concrete before the settling became worse, he contacted Thrasher for concrete repair solutions.

System Design Specialist Tom Studer went out to Michael’s home and completed a free inspection. The soil under their driveway and sidewalk was giving away due to poor soil conditions. After Tom explained the problem and our solution to fixing the concrete, our crews got to work. We repaired all the cracks and sealed the joints with NexusPro Joint Sealant. Then we also applied SealantPro over the concrete, giving the area a protective layer. Michael was happy with our service, the production crew and our attention to detail.

Foundation Waterproofing in Kansas City, KS

This homeowner in Kansas City, MO uses their basement primarily for storage, but recently they were having water infiltrating the space. After presenting them the reason behind their basement leakage and the waterproofing solutions we offer, they knew Thrasher was the company for them.

Our teams arrived and determined the water was seeping in through the cold joints of the foundation. The homeowner opted to have us install a combination of our basement waterproofing products. Our WaterGuard interior basement drainage system was installed first to capture the water leaking in through the cold joints. CleanSpace is a waterproof barrier that was applied to the walls to trap any excess moisture, and then a TripleSafe sump pump system was installed to release the water from the home.

Concrete Repair in Kansas City, MO

This Kansas City, MO homeowner had concerns with the concrete on her front walkway for a long period of time. It had settled over the years causing it to slant downhill and crack in multiple areas. It had gotten to the point where she stopped using the walkway during the winter in fear of slipping on the ice that accumulated there. In order to find a permanent and effective solution, she gave Thrasher a call.

Our team arrived at the home in Kansas City to analyze the problematic walkway. To fix the sunken and broken concrete, the homeowner opted to have us install our 2-Part Concrete Protection System that consists of PolyLevel foam and NexusPro sealer. The PolyLevel foam is installed first to lift and level the settled concrete. NexusPro is then applied to all cracks and joints to prevent any water from infiltrating in the future. The customer was thrilled with the concrete repair solutions Thrasher was able to provide. We were able to make her sidewalks and entryway functional again for her personal use, and visitors.

Home Foundation Repair in Kansas CIty, MO

This Kansas City homeowner has plans to sell her home within the next couple of years, but a portion of her kitchen floor was beginning to sink due to water wash out in the crawl space. In order to maintain the value of her property, she called Thrasher due to our superior product and 25-year warranty on her floors.

 System Design Specialist Ryan Galt visited this Kansas City home and verified that her kitchen floor was sagging. Before remodeling the kitchen to sell the property, the floors needed to be leveled and stabilized. Ryan then installed four of our SmartJack support systems and two beams to permanently solve this issue.

 Aside from being pleased with the tangible results, she was more than happy with the installation crew and our team’s dedication to customer engagement.

Service Area Zip Codes: