Foundation Repair & Basement Waterproofing in Lees Summit, MO

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 Lees Summit, MO and nearby areas.

Testimonials From Lees Summit
We are really happy with the outcome and we looking forward to seeing it stay dry.
Testimonial by Larry and Judy M. from Lee's Summit, MO
I'm so impressed and I can't wait to use my crawlspace for storage instead of it just being a creepy, gross dungeon down there.
Testimonial by Christen B. from Lee's Summit, MO
The crew executed everything to perfection and I'm really happy with the results!
Testimonial by Brenda H. from Lee's Summit, MO
Reviews From Lees Summit
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Durable home foundation repairs in Lees Summit

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 and more.

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 Lees Summit and nearby areas in Missouri.

Lasting basement waterproofing system in Lees Summit

If your home or building has leaky egress 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 Lees Summit and nearby areas in Missouri.

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

Our basement waterproofing system includes:

  • Interior drainage systems
  • Sump pumps
  • Replacement egress windows
  • Window wells
  • Mold treatment
  • Dehumidifiers

Crawl space repair & encapsulation services in Lees Summit

Do you have a musty, wet, and 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 Lees Summit

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. 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.

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 Lees Summit 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 Lees Summit
Concrete Sealing in Lee's Summit, MO

Concrete Sealing in Lee's Summit, MO

Before After
Concrete Sealing in Lee's Summit, MO Concrete Sealing in Lee's Summit, MO

This homeowner's beautiful new concrete was left exposed and was in need of some protection! NexusPro joint sealant is the perfect solution to give your concrete the protection it needs to keep that clean new look. 

Sinking Driveway Fixed in Lee's Summit, MO

Sinking Driveway Fixed in Lee's Summit, MO

Before After
Sinking Driveway Fixed in Lee's Summit, MO Sinking Driveway Fixed in Lee's Summit, MO

This customer's driveway was a very large pour of concrete that was sitting in incompetent soil. We used helical piers to stabilize the stoop and catch it from falling forward and causing bigger issues with the home. Then, we used our polymer foam to lift the driveway and make everything as level as possible. Finally, we added our NexusPro caulking in all the joints and cracks to keep water from penetrating beneath the surface. 

Driveway Repair in Lee's Summit, MO

Driveway Repair in Lee's Summit, MO

Before After
Driveway Repair in Lee's Summit, MO Driveway Repair in Lee's Summit, MO

Lawrence R., in Lee’s Summit, MO, was frustrated with the appearance of his driveway, and the cracks had become tripping hazards over time. He was familiar with our reputation and trusted that we would provide a permanent solution. After meeting with our System Design Specialist Sam Pretz, he instantly knew our process and repair solutions were the best for his home.

Our crews arrived at the home in Lee’s Summit and installed our 2-part concrete protection system. It began by injecting our Polylevel foam beneath the concrete’s surface to lift, level, and stabilize the settled areas. Then, our NexusPro joint sealer is applied to all cracks and control joints to prevent any water from causing damage in the future and give the driveway a flush, clean appearance.

Rain Water Problems Solved in Lee's Summit, MO

Rain Water Problems Solved in Lee's Summit, MO

Before After
Rain Water Problems Solved in Lee's Summit, MO Rain Water Problems Solved in Lee's Summit, MO

These homeowners just bought their new home in a better health care area. They loved the new home because it has extra space for their kids to stay when they are in town, however in heavy rain, the basement started to flood. They were concerned about this problem because they didn't want this to effect their kids from wanting to visit them, so they gave us a call.

We sent System Design Specialist Daryn Britton to inspect the basement to determine where water could get in the home, and come up with a custom solution to ensure that these homeowners keep a dry basement. Daryn found that water was coming in through the cold joints of the home, but only during the heavy rains. While this situation isn't a fun one, Daryn was happy to tell the homeowners that they caught the problem early enough so that no additional damage was caused besides the water pooling in the basement. After discussing the solutions with the homeowners, our installation team got to work on installing a WaterGuard Interior Drainage System, a partial CleanSpace Vapor Barrier, and a new TripleSafe Sump Pump in the homeowners basement to ensure that water was not seen in the basement again.

The homeowners were really happy with the outcome. They know that their kids will keep visiting them and they look forward to seeing the basement dry year-round. Check out these homeowners' dry basement solutions!

Case Studies From Lees Summit
This house had settled to the front 3 inches. Installing piers on 3 perimeter walls lifted the foundation back to its original elevation. This...
Recent job requests in Lees Summit, MO

Neighborhood: NE Chestnut Ct, Lees Summit, 64086

During inspection, our inspector noticed foundational issues and we would like to request a quote on repairs.

Neighborhood: SW Ingleside Pl, Lees Summit, 64081

We bought a house recently and took the paneling off the basement walls. There's lots of cracks, some that have been filled previously but now look like they've shifted. We'd like someone to come check it out for us between May 15th-18th if possible. Thank you!

Neighborhood: NE Park Springs Ct, Lees Summit, 64064

Settlement along the front of the house near the front porch and to the south.

Neighborhood: SW WINTERBROOK CT, Lees Summit, 64081

Re-level front porch steps

Neighborhood: Lees Summit, 64064

Front sidewalk sinking. Need a French drain in yard and lift of sidewalk. Need an estimate please

Neighborhood: Lees Summit, 64063

Service: Concrete repair

Neighborhood: Lees Summit, 64086

Neighborhood: Lees Summit, 64081

There is a crack in the foundation that begins at the base of an egress window, and the window well needs to be replaced. Also, we have a concrete walkway leading to the front door that is sinking, and the steps are cracking away from the porch.

Neighborhood: Lees Summit, 64082

Foundation is settling around the area of our walkout basement door and garage. Walkout door will not open.

Neighborhood: Lees Summit, 64082

My foundation has several existing braces. One of the braces has failed and I need to have it replaced. There is also some cracking that will need repair.

Neighborhood: Lees Summit, 64063

Water has been appearing in my basement in a puddle near one of my walls

Neighborhood: Lees Summit, 64081

Repair/replacement of residential driveway. Working with and insurance company on a damage claim.

Neighborhood: Lees Summit, 64063

It appears the front half of my house has settled and shifts dependent of the amount of moisture in the ground. It's playing havoc with some of my sheetrock.

Neighborhood: Lees Summit, 64063

Service: Crawl space problems

Neighborhood: Lees Summit, 64064

I have cracks in several walls throughout my house. Also, there is some separation of floor and wall in one of my upstairs bedrooms. I'd like to have someone take a look and let me know if it is normal settling or something more.

Neighborhood: Lees Summit, 64063

Small amount of water pooling after heaving rain against one wall of the crawl space that meets up with attached garage. Garage floor is also sinking.

Neighborhood: Lees Summit, 64081

Small room under the porch (storm shelter) that is sort of outside of the building envelope and the concrete slab for the porch is the ceiling. The slab (ceiling) has cracked and leaks water into the room during heavy rain. Would like the room waterproofed.

Neighborhood: Lees Summit, 64063

Cracks in floor and walls

Neighborhood: Lees Summit, 64086

I need to have my driveway, front stoop, and wall around my front door looked at.

Neighborhood: Lees Summit, 64086

One part of our concrete driveway has sunken a little bit.
Job Stories From Lees Summit, MO
Driveway Repair in Lees Summit, MO

This family moved into the home 20 years ago and have plans to give this home to their son and family in the future. The driveway was experiencing some sinking, and they knew they needed to get this fix so they could pull his lawn tractor in and out with ease. He knew of Thrasher and our reputation and knowledge, so they gave us a call. System Design Specialist, Zach Ryder, came out to meet with them. Zach did his inspection and saw the driveway slab had sunken below the garage floor slab due to washout. Zach took these findings and went back to the family with a solution. We used PolyLevel to lift and level the driveway back in place with the garage. PolyLevel is a durable, expanding foam that is injected under the concrete to stabilize it and move it back into place. The family loved this solution and we sent out our installation team. There is no doubt they have the peace of mind they need as they pass the home on through generations. 

Foundation Repair in Lee Summit, MO

This homeowner in Lee Summit, MO had an addition to his house with a crawl space. He was wanting to do some remodeling to the room when he noticed a wall leaning and started to realize the door to the room wouldn't shut as easily. When taking a closer look, he noticed some cracks in the drywall and knew he had a problem so decided to call Thrasher. 

Our team came out and did an inspection on the home when we found the crawl space under the room was beginning to settle causing these issues he was noticing. Due to the current drought that was in the area, it was a common problem happening to many homes in his neighborhood. Wanting to give the customer a permanent solution to this problem, our crew used push piers to give the crawl space and foundation more support in the settling areas. When soil conditions are unknown, push piers are the least risky solutions because they are driven all the way to a stable layer of soil. This homeowner can now remodel his addition without the worry of future damages. 

Concrete Fix in Lee's Summit, MO

Longtime homeowners in Lee’s Summit, MO, needed some concrete repair after watching their concrete form cracks over the last couple of years. The Thrasher crew went out to their home and were able to identify that the cracking was from exposed control joints in the driveway and sidewalk. The team used a combination of PolyLevel and Nexus Joint Sealant to level and fill the exposed joints. 

Waterproofing in Lee's Summit, MO

A long-time homeowner was tired of having a flooded basement in her Lee’s Summit, MO home any time there was heavy rain. It had been happening for quite some time and the basement was no longer completely dry. She decided it was time to call Thrasher.

System Design Specialist Tom Studer went through the inspection and explained to Christine what was going on. He was able to identify that water was coming in through the cold joints. The crew installed a full perimeter WaterGuard in her basement with a lateral line to help direct the water out of her basement. The homeowner was thrilled to finally have a dry basement.

Concrete Crack Repair in Lee's Summit, MO

Homeowner Lindsay C. in Lee’s Summit, MO was looking to do some concrete repair. Lindsay noticed a Thrasher truck in his neighborhood and talked with the crew about the work they were doing. After seeing the completed work, he decided to give us a call.

System Design Specialist Bobby Bartow went out to the home. During the inspection, Bobby was able to see that there were a lot of cracks and unprotected control joints. Our crew fixed the concrete with NexusPro Joint Sealant. Lindsay was thrilled with how the concrete looked and couldn’t wait to recommend Thrasher.

Concrete Repair in Lee's Summit, MO

This homeowner in Lee’s Summit, MO was concerned with the concrete on her front step becoming a tripping hazard, in addition to its overall appearance. In order to improve the curb appeal of the home and its safety, they gave Thrasher a call to repair their concrete needs.

Thrasher arrived at home in Lee’s Summit, MO and performed a full inspection to determine the best solution. Soil washout had created multiple voids underneath the front step that caused it to settle. The homeowner chose to have our 2-part concrete protection system installed to level and seal the concrete. Our PolyLevel foam was injected first underneath the concrete to lift the front step. Then, NexusPro sealer was applied to all cracks and control joints to prevent any water damage in the future. The homeowner was impressed with the efficiency of the crew and our dedication to providing a quality solution.

Foundation Repair Services in Lee's Summit, MO

This Lee’s Summit, MO homeowner is getting ready to sell her home within the next couple of years. In order to maximize the home’s value, she thought it was best to have the foundation repaired and stabilized due to the foundation settling over time. She made the right choice and called Thrasher because of our reputation, appointment availability, and our ability to provide solutions to all her concerns.

 To begin stabilizing the home’s foundation, System Design Specialist Elliot Moles arrived in Lee’s Summit to inspect the property. From there, the customer opted to have our Supportworks Push Pier System installed to permanently stabilize the foundation. The push piers are made with strong heavy-duty steel that connect to the foundation of the home using a steel bracket. They’re driven deep into the ground to reach the strong soils in order to absorb the weight of the home.

 The customer was very satisfied with the quality of our work and display of professionalism. She is now able to sell her home with peace of mind knowing she has maximized the value.

Basement in Lee's Summit, MO Free of Flooding

Homeowner in Lee’s Summit, MO moved into her home about a 1 ½ years ago. Since the fall she has noticed water coming into the basement and it has been getting worse. After having a bad experience with basement flooding before, she knew she needed a permanent solution and decided to give us a call.

System Design Specialist Tom Studer went out to her home to see what we could do.  Water was coming in from cold joints, under the floor and cracks in the walls. We installed CleanSpace and used NexusPro Crack Repair to prevent any more water from entering the basement.

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