Testimonials From Johnson County
I loved the company culture and appreciate their expertise.
Testimonial by Jonathan S. from Lenexa, KS
I am excited to extend the life of my driveway and prevent a failure that would be expensive to replace.
Testimonial by Jamie J. from Lenexa, KS
I'm happy with how they were able to quickly diagnose and provide a solution that makes sense.
Testimonial by Andy R. from Shawnee, KS
Contact Us For
An Estimate!
Click House icon to view requests in Johnson

Are you looking for help with foundation repair, concrete leveling, basement waterproofing, or crawl space encapsulation in Johnson County? Thrasher Foundation Repair is Kansas's largest and most trusted home repair company. We specialize in repairing foundations, concrete, wet basements, and damp crawl spaces. Our motto is "There's only one right way" and we stand behind that with our highly-experienced inspectors and crews, proven products, transferable warranties and interest-free financing. You can trust that you're getting the best solution for your home or business, no matter what the problem.

Learn about the services we provide in Johnson County and the surrounding area, or contact us today to schedule your free inspection and estimate!

Proven Residential & Commercial Foundation Repair Solutions in Johnson County, KS

Thrasher Foundation Repair is trained and skilled in the latest foundation repair techniques. We can effectively repair any settlement-related problem, from foundation cracks, bowing basement walls, uneven floors, settlement sinking - you name it, we can fix it. Using patented products from Foundation Supportworks, we offer a fast, cost-effective, proven solution to your foundation and structural repair needs in Johnson County, KS.

We offer a wide range of foundation, structural and concrete repair solutions, such as:

  • Helical/push pier systems
  • Wall anchors
  • Shotcrete
  • Crawl space jacks
  • Polyurethane concrete slab leveling

Most foundation repair jobs take less than a week to complete and our services include a detailed written estimate and many of our products include a written warranty. Call us today to request a free foundation inspection Johnson County or the surrounding area.

Your Responsible Basement Waterproofing & Sump Pump Contractor

If you have a damp, leaky basement or issues with basement flooding, Thrasher Foundation Repair is your expert for a proven, cost-effective basement waterproofing solution. No matter what's causing your wet basement problem, we can fix it! We'll inspect your home inside and out and design and install a waterproofing system to meet your needs.

Having a wet or leaky basement is not only an inconvenience, but the moisture, dampness and mold caused by the water can lead to health problems and added repair expenses. That's why we offer a full range of basement repairs and waterproofing solutions designed to tackle the problem:

  • Basement sump pumps
  • Interior perimeter drainage systems
  • Wall and floor crack repair
  • Basement dehumidifiers
  • Radiant & vapor barriers
  • Insulated basement wall panels

Our patented WaterGuard drainage system doesn't require excavation, can typically be installed in just two days, and includes a transferable lifetime warranty! Contact us to learn more and get a free basement inspection or sump pump installation estimate.

PolyLevel Concrete Lifting & Leveling Services in Johnson County

Is your sidewalk or driveway sinking and uneven? How about your patio or front porch steps? Uneven concrete not only looks bad, but it can also be a dangerous tripping hazard. Concrete leveling is faster, less disruptive and more cost-effective than tearing out and replacing the concrete.

Thrasher Foundation Repair uses a process called PolyLevel to permanently lift and stabilize sinking concrete slabs with a high-density polyurethane formula. PolyLevel concrete repair offers many advantages:

  • Lightweight - Won't add weight to existing soil
  • Waterproof - Won't wash out
  • High-capacity - Lifts heavy loads
  • Minimal disruption to your slab and property
  • Environmentally friendly
  • Great for leveling sidewalks, driveways, pool decks

If you have a slab foundation or concrete outside your home that you need re-leveled, Thrasher Foundation Repair is your expert contractor. Call today to schedule your free, no-obligation inspection and estimate!

Trusted Crawl Space Encapsulation & Repair

Do you have a damp, nasty crawl space below your home? How about musty odors inside your home or cold floors over your crawl space? Thrasher Foundation Repair solves these problems with our state-of-the-art CleanSpace crawl space encapsulation system.

We install the moisture barrier on the crawl space floor to eliminate excess moisture and musty smells. Crawl space insulation is added to the walls for added comfort and energy efficiency. What you get is a dry, usable crawl space and improved comfort and healthier air inside your home.

We offer a full range of crawl space repair & encapsulation solutions in Johnson County, including:

  • Crawl space dehumidifiers
  • Crawl space sump pumps
  • Vapor barriers
  • Access doors
  • Crawl space structural supports

Before and After Pictures from Johnson County

Case Studies From Johnson County
Midwest soils expand and contract with moisture and dry cycles, which can cause concrete to crack. Most of the time, Thrasher Foundation Repair can...
Recent job requests in Johnson County, KS

Neighborhood: S. Logan, Johnson, 66061

Need to see about mud jacking under front porch.
Job Stories From Johnson County, KS
Cracked Driveway Fixed in Olathe, KS

Homeowner Tom B. in Olathe, KS noticed his garage had started to form cracks. The driveway was starting to also settle from the voids that had formed from the front slab and sidewalk.  He was worried about having to replace the garage slab due to the cracks and settlement. He decided to give us a call to see if we had a solution to save the concrete.

System Design Specialist Lukas Popp went out to the home. He was able to identify that there was 2 inches of settlement in the front 2 slabs. We were able to use PolyLevel to stabilize and lift the front slab and then used NexusPro Sealant to close the existing cracks.  

GeoLock wall anchors installed in basement in Mission, KS

John and Renee had issues with the walls in their basement. They understood that the problems were caused by foundation settlement and knew they had to do something. They were concerned about the mess and hassle of the project. They had received a subpar experience 

Thrasher came and installed GeoLock wall anchors to help straighten the walls. These anchors are slowly tightened to straighten the wall over time. Thrasher signed the homeowners up for an Annual Maintenance Plan which means there is a service tech that comes to the home and properly tightens the wall anchors. The couple was pleased with the experience. They were happy to see that the crew cleaned the yard and home after the work was completed.


Settled Concrete is Lifted in Overland Park, KS

A homeowner in Overland Park, KS was having problems with some of their concrete slabs settling due to a sump pump. Looking for a long term solution, they gave us a call.

We were able to provide a solution to lift and protect their concrete. We used a combination of PolyLevel that lifted and filled the voids. Then we applied NexusPro to keep water out and seal the joints.

Foundation Repair and Basement Waterproofing in Wichita, KS

In Wichita, Kansas a father wanted to aid his daughter in the purchase of her first home, but after the purchase had been made it was clear the waterproofing system installed by another company was failing. In addition, this company’s wall restraints were giving out allowing the walls to move inward and water to seep through. These issues made the basement an unusable space, and even caused damage to the living space above. After calling a handful of companies to evaluate, it was clear Thrasher was the most detailed and thorough about the project at hand.

 After choosing Thrasher, multiple crews arrived to begin the transformation of this Kansas home. They first installed helical piers to stabilize the foundation before beginning work on the interior. From there, the teams installed our PowerBrace wall support system to secure the walls, WaterGuard basement waterproofing system for superior drainage, and CleanSpace waterproof barrier on the walls to ensure the basement stays dry permanently.

 The father and his daughter were not only thrilled with the outcome, but our overall evaluation from the beginning and ability to explain the project. The customer struggled with a company unable to stand behind their warranty, and it was clear to them Thrasher stood above all other competition.

Pool Deck Leveled with PolyLevel in Leawood, KS

Homeowner in Leawood, KS was getting a new surface on their pool and the concrete was very unleveled. They decided to call Thrasher, so they can have smooth and leveled concrete on their pool deck.

The team was able to lift the patio concrete about an inch with PolyLevel to the area was now back up to the original level. When were out there we also used PolyLevel to lift the concrete on the driveway as well.

PolyLevel and NexusPro Joint Sealant Fix Cracks and Settlement in Olathe, KS.

A homeowner in Olathe, KS was growing worried about cracks that were appearing in his garage and the voids underneath the front slab in the driveway and sidewalk. He had mudjacking done in the past, but it didn’t work. Looking for a different solution he decided to give Thrasher a call.

The team was able to identify that there was 2 inches of settlement in the front slabs, which was making it difficult to park in the garage. We lifted and stabilized the front slabs with PolyLevel. Then closed up the cracks and joints with NexusPro Joint Sealant. This homeowner was very pleased and grateful for our work!

Flooded Basement in Overland Park, KS Fully Waterproofed

A homeowner in Overland Park, KS had his basement remolded a couple of years ago and noticed cracks forming. He had epoxy injects done as a temporary fix, but water was coming through. The basement had some major flooding and he had to pull up the carpet. Looking for a more permanent solution that would last, he called Thrasher.

The crew identified that water was coming in through cold joints and the sump pump hasn’t been replaced. We waterproofed the basement with WaterGuard and installed a TripleSafe Sump Pump with a SaniDry Sedona Dehumidifier. This homeowner was happy to have the water under control and have his basement back to normal.

Foundation Repair in Prairie Village, KS

This homeowner in Prairie Village, KS noticed the foundation worsening over time, but had recently accelerated. Familiar with Thrasher and our reputation of providing permanent solutions, they gave us a call to come inspect the damaged walls.

Thrasher arrived at the home in Prairie Village and performed a thorough inspection of the failing foundation. It was determined the south wall was the most severe and deflecting by over 1.75 inches. To combat this, the team installed our PowerBrace wall support system to stabilize the wall in its current position. Over time, the braces will be tightened to eventually return the walls to a vertical position. The homeowners couldn’t have been more pleased with the effectiveness and quality of our foundation solution. Thrasher was able to restore their peace of mind and ensure their home has the support it needs to last.

Foundation Repair Services Fix Floors in Lenexa, KS

A homeowner in Lenexa, KS noticed that the flooring in his home was becoming uneven and there was some gapping between the floor and interior walls. He wanted some clarity on what was going on with his foundation, so he decided to call Thrasher to learn more about foundation repair services that we offer.

Upon inspection the crew was able to see that the main floor support beams needed support. There was also wall failure and water proofing that was needed. For the main floor support beam, we installed SmartJacks to stabilize the beam and raise the sinking floor. PowerBraces were also installed to stabilize the walls and to keep water out of the basement, WaterGuard was put in.

Concrete Repaired in Overland Park, KS

Previously mudjacked concrete was causing problems for a homeowner in Overland Park, KS. He was noticing that areas were settling again and that critters were digging underneath the concrete.

The Thrasher crew fixed the concrete with 3 of our concrete repair products. We started with leveling the concrete with PolyLevel, creating a level surface. Then we applied NexusPro Joint Sealant to close up the cracks and joints to prevent water from entering again. The we put a protective sealer called SealantPro over the top of the whole area to protect the concrete from future staining and elements.

Driveway Repair in Shawnee, KS

This Shawnee, KS home had concrete slabs on the driveway that had sunk severely over the years. To avoid a full replacement and reduce cost, she decided it was finally time to have it repaired. She chose Thrasher because we were able to provide her with an affordable solution that would save the concrete and stay protected under a warranty long into the future.

To begin the concrete repair, System Design Specialist Craig Mueller arrived at the home in Shawnee, KS to inspect the driveway. It was determined the slabs closest to the street had open control joints that were allowing water to flow underneath the concrete and washing out the soil. The homeowner opted to have our team install our 2-part concrete protection system that consists of PolyLevel foam and NexusPro sealer. PolyLevel is installed first by injecting it underneath the concrete to lift and level the slabs permanently. NexusPro sealer is then applied to all cracks and control joints to prevent any water infiltration in the future.
Once the job was completed, the homeowner’s peace of mind was restored knowing her concrete issues were behind her.

Overland Park, KS Concrete Repair

A homeowner in Overland Park, KS was looking to keep up with the aesthetics of her home. The front porch was settling and breaking away from the home.

Upon inspection, the Thrasher crew was able to recommend PolyLevel. We injected the settled areas with the foam and were able to raise it back up to the original level.

Basement Waterproofing in Shawnee, KS

A homeowner in Shawnee, KS was growing increasingly frustrated with the water that would come into his basement. During any rainstorm, large amounts of water would collect in the basement, and it would have to be cleaned up. After doing some research, he contacted Thrasher for a permanent solution.

System Design Specialist Derek Vaksdal went out to the home and completed a free estimate of the basement. He created a solution that fit the timeline for the homeowner and our crew got to work. They started with installing a WaterGuard, a basement waterproofing system. They also encapsulated the walls with CleanSpace and installed a sump pump so the water would have someplace to go.

Concrete Driveway Repair in Olathe, KS

Craig F. in Olathe, KS has only lived in his home for a short time and was worried about the shape of the driveway. He previously had it mudjacked but it didn’t last. Ready for a permanent solution, he gave Thrasher a call.

System Design Specialist Hunter Anderson went out to the home. During the inspection, he was able to see that there were many voids under the whole driveway and it had become a major trip hazard due to cracking. The crew applied PolyLevel to lift and level the driveway back to the original height. Then applied NexusPro Joint Sealant to all of the cracks. Craig was thrilled to have peace of mind in knowing the driveway was in good shape.

Foundation Repair in Shawnee, KS

A homeowner in Shawnee, KS was looking to have work done on his crawl space but noticed cracks forming on one foundation wall. Before moving forward with the project, he wanted to get the foundation inspected. Upon inspection, our crew was able to identify that six push piers were needed to stabilize the foundation. 

Driveway Concrete Repair in Lenexa, KS

A homeowner in Lenexa, KS, wanted to fix their concrete before it got worse. There had been a significant amount of settlement around their driveway and front walkway. The crew used a combination of PolyLevel and NexusPro Joint Sealant to level and close the exposed joints. 

Concrete Protection Service in Lenexa, KS

Homeowners in Lenexa, KS, were looking to repair and prolong the life of the concrete. The crew went out to their home and provided them with a solution. We used PolyLevel to lift the affected areas, then sealed the exposed joints with NexusPro Joint Sealant and then put a protective layer over the top with SealantPro. 

Foundation Wall Repair in Shawnee, KS

A homeowner in Shawnee, KS, was worried about a foundation wall in the basement and noticed that it had started to bow out. The crew installed PowerBraces to stop the wall from moving and straighten out. 

Basement Waterproofing in Olathe, KS

In Olathe, KS, these homeowners were actively looking for a new, more appropriate home for their children. However, their current home had moderate flooding issues, and they knew they would have to them repaired to increase the value. After researching the best contractor for them, they quickly chose Thrasher because of our reputation and countless reviews. 

Our crews arrived at the home and installed our complete waterproofing system that consists of our WaterGuar interior drainage system, CleanSpace vapor-proof barrier, and TripleSafe sump pump system to guarantee the basement stays dry year-round. 

Foundation Repair in Gardner, KS

In Gardner, KS, our crews installed four GeoLock wall anchors around the perimeter of a basement to stabilize all the walls and move them back to their original position over time. These homeowners were looking to downsize soon and wanted to protect the home's value. 

Concrete Step Repair in Olathe, KS

In Olathe, KS, this customer was experiencing failure in their concrete due to freeze and thaw cycles over time. Familiar with our reputation, they didn't hesitate to call Thrasher for a permanent concrete repair solution.

Our crews arrived at the home in Olathe and installed our 2-part concrete protection system. This solution consists of our PolyLevel foam and NexusPro sealer. 

Concrete Repair in Overland Park, KS

This homeowner saw a crack forming in his driveway and some settling happening by his garage. He knew this was a tripping hazard and decided to call Thrasher. He knew of our professionalism and knew we could help him. One of our System Design Specialists, Josh Krestine, met with this homeowner. Josh found a couple of things leading to the cracking and dropping of the concrete. He explained there was poor soil compaction, on top of water coming from the downspouts plus natural rain, causing the soil to become soft and the heavy concrete to sink. Josh proposed we use our PolyLevel foam to lift the concrete. The PolyLevel is waterproof and allows us to life and stabilize concrete for a long period of tine. This will eliminate trip hazards and damage to tires on cars. The homeowner loved this proposal, and loved the work even more when completed. He was surprised how cheap it was to add so much protection to his driveway! 

Concrete Repair in Olathe, KS

This homeowner just bought his new home and wanted to protect the driveway with a quality sealant. He had deteriorated concrete at his old home due the weather, and knew he wanted to protect his new home from this. He called Thrasher and one of our System Design Specialists, Bobby Bartow, went to meet him. Bobby did notice that his concrete was newer, but since he wanted to be proactive, Bobby proposed our Sealant-Pro. Sealant-Pro permanently seals the concrete by penetrating the surface and preventing moisture from absorbing into the concrete. This homeowner was so excited to know his concrete was protected by a company that stands by their work! 

Water in the basement in Olathe, KS

These homeowner had installed a French Drain nearly 15 years ago. They noticed recently the side of house was getting water inside, and imagined the drain was clogging. They called Thrasher because they knew we would be able to find a permanent solution. System Design Specialist, Tom Studer, came out to meet with them. After the inspection, Tom found water was going in through the cold joint in the basement, along with a couple of cracks in the wall. Tom decided the best solution to this issue would be to install our waterproof system. This includes WaterGuard and Cleanspace along the wall to efficiently capture the water that was coming at the cold joint and the walls. Cleanspace is a plastic, waterproof shield that is attached to the walls. When the water comes in, the Cleanspace is a barrier between the wall and the basement. The water trickles down and into the WaterGuard. WaterGuard is our drainage channeling system. Once the water enters WaterGuard, it flows to the sump pump and out of the home! Tom discussed this with the homeowners and we got started! These homeowners were so happy to know there will not be anymore water issues in their home! 

Waterproofing in Shawnee, KS

John has just moved into town, and has a traveling job. When he was back in town for a weekend, noticed water was coming in in several areas of his home. He decided to take off part of the drywall to find where the water was coming from, and found there was more water than he imagined all along the wall. He called Thrasher, and System Design Specialist, Tom Studer, came out to meet him. Tom found the water coming through the cold joint, where the footings of the foundation and walls meet. There was high readings of water concentration on the outside of home near the footing, letting water seep into the home. Tom proposed we use our WaterGuard system at the cold joint to capture the water, and CleanSpace, which is our water vapor system, to catch any water from potential cracks in the walls. One the project was complete, John was so happy with the results. He was happy to get quality work done, quickly, so he can refinish his basement without worries of water getting in. 

Front Step Repair in Overland Park, KS

These homeowners thought their front steps were looking bad. They wanted a good company with a good reputation to find a solution for them. They called Thrasher and System Design Specialist, Jimmy Hungerford, came out to meet them. After doing the free inspection, Jimmy proposed we use PolyLevel to lift and level the steps back into place, and Nexus Pro to seal the cracking. The homeowners were so thrilled after the work was completed. They told us how great it looked and wanted more work done on other areas in the future! There is no doubt these homeowners have no more worries of their steps looking bad for their guests. 

Front Walkway Concrete Repair

These homeowners had just moved into the house two years with plans on making this their forever home. The front walkway started settling during the winter and now there are visible cracks and voids. They were concerned that it would continue to get worse if nothing was done. They did their research online for companies that could help and landed on us. They were impressed with the reviews, reputation, and financing options and gave us a call. System Design Specialist, Brandon Powers, came out to meet them. He surveyed the area and found the concrete was settling by soil erosion. Brandon proposed we use Polylevel to lift, level, and stabilize the concrete and NexusPro to seal joints and cracks throughout. The homeowners liked this solution and we sent out our installation team. There is no doubt these homeowners have no more worries with their driveway! 

Concrete Repair in Shawnee, KS

This homeowner was getting a new hot tub and realized the concrete where they wanted to put it was starting to fall towards the home, making the hot tub unlevel. They wanted this job done quick and done right, so they called Thrasher. System Design Specialist, Josh Krestine, came out to meet with them. Josh found a downspout sitting next to the concrete which was washing away the soil under. Concrete is super heavy and needs something solid to sit under. He came back to the homeowners with these findings, and together they decided on using PolyLevel foam, which will take place of the soil, lifting the concrete back into the place. The Polylevel foam is waterproof, which will create a long lasting solution for the homeowner so they can enjoy their new hot tub. The homeowners were very pleased with the outcome and we know they can enjoy their hot tub with no worries! 

Concrete Driveway leveling from soil washout in De Soto, KS

House is only 3 yrs old and the homeowners noticed the void under the driveway causing it to break and sink. This was caused by poorly compacted soil during construction. 

This would be fixed by using our PolyLevel foam to fill the void and strengthen the concrete driveway. 

Concrete Driveway leveling from soil washout in De Soto, KS - Photo 1
Concrete Repair in Overland Park, KS

Trevor and Joseph moved in last November. They plan on this being their forever home. Since moving in, they have noticed some settling and cracking throughout the driveway and walkway. Although there was some piers and wall support done previously, they wanted everything inspected. Their primary concern is to make sure that structurally everything is in good shape. They also want to make sure there are no trip hazards and that everything looks good aesthetically. They were referred to Thrasher by a colleague, and between that and online reviews, they knew they didn't need to look any further. System Design Specialist, Brandon Powers, came out to meet with them. Brandon did his inspection and found the poor soil compaction and erosion caused the concrete to settle and crack. Brandon took these findings back to Trevor and Joseph with a solution in hand. To fix their problem areas, we used our 3 Part Concrete Protection System. This includes; Polylevel to lift, level, and stabilize concrete, NexusPro to seal all joints and cracks, and SealantPro to deal the seal the concrete. These products together help stabilize the concrete, prevent any more washout, and prevent pitting and spalling of the top of the concrete. They loved this solution and we sent out our installation team. There is no doubt Trevor and Joseph have the peace of mind they need and deserve in their forever home! 

Foundation Support in Overland Park, KS

This homeowner has been experiencing sagging floors and cracks in their dry wall. They want to maintain the property value and not have major issues in the future. He knew of Thrasher and our reputation, so he gave us a call. System Design Specialist, Allie Packard, came out to meet with them. Allie did her inspection and found the foundation was settling from the beams in the basement, which was causing the floor to sag. Allie went back to the homeowner to give him the explanation of what the issue was and why it was happening. He really appreciated the thoroughness of the inspection. Allie then went through the solution that would be best to solve the issue and what was best for the homeowner. He loved this solution, so we installed two supplemental beams and four smart jacks in order to raise the floor back into place. There is no doubt the homeowner has peace of mind for the foundation of his home. 

Service Area Zip Codes: