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  • Served 30,000+ Homes Since 1985
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  • Lifetime Transferrable Warranties
The #1 Choice in Concrete Leveling
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Top waterproofing contractors Kansas City

Do you have uneven concrete slabs? KC Waterproofing of Grandview can help! If you notice uneven concrete on your property, it is not a problem you should ignore. Uneven concrete is not only unsightly but it can also be a hazard. The problem tends to get worse over time and can lead to costly repair bills down the road if ignored. For concrete leveling in Grandview, MO, trust the experts at KC Waterproofing and Foundation Repair.

What Is Concrete Leveling and Repair?

Concrete repair is the process of lifting and leveling a concrete slab that has sunk and cracked. Weather conditions and other factors can cause the supporting soil beneath the slab to settle or erode. Expansive soil will expand and contract during wet and dry weather patterns, causing the slab to shift, crack, and sink. If the soil beneath the slab wasn’t properly compacted during construction, this can also cause the soil to settle and allow the slab to sink. Soil erosion will leave empty spaces beneath the concrete, which allows the slab to sink as well. Concrete leveling, also known as PolyLift, is a process used to correct an uneven concrete surface by addressing the surface’s foundation. In many cases, concrete leveling or PolyLift is the best option to get the concrete surface back in good condition.

When is Concrete Leveling or Repair Needed?

If you have cracked or unlevel concrete slabs in need of repair on your Grandview property, it poses a tripping hazard and should be repaired right away. Our concrete repair team in Grandview uses an innovative technique called PolyLift to quickly and permanently repair sinking concrete slabs, with little disruption to the surrounding area. PolyLift uses an expanding polyurethane foam, which is injected through small holes drilled into the concrete slab. As the foam expands and hardens, it lifts the slab back into place. The foam is lightweight and will not create further settlement.

Using Technology to Fix Your Concrete

At KC Waterproofing and Foundation Repair, we use the latest technology for concrete leveling in Grandview, MO. We use a state-of-the-art polyurethane product called PolyLift. PolyLift is a foam that expands when applied and permanently fixes the concrete problem. It weighs less than the original mud or new concrete, so it won’t make any sinking problems worse.

To apply this solution, we drill holes in the sunken concrete and add PolyLift until it is raised back to its original level. We use the PolyLift material and method instead of mudjacking because it lasts longer and does not deteriorate over time.

interior slab leveling in Grandview, MO

Experts in Concrete Leveling in Grandview, MO

When you need concrete repair and concrete leveling in Grandview, MO, trust the experts at KC Waterproofing and Foundation Repair. We also offer crawl space repair, foundation repair services, foundation wall repair, and interior slab leveling in Grandview.

We have years of experience in the industry and have been serving families in Grandview since 1985. We start every project with a thorough inspection, then talk through the options with the homeowner before beginning any work. We’ll keep you updated every step of the way, so you’ll have total peace of mind that your project is on track. Call today for your free inspection.

Satisfied Customers

Fast and good!
A sump pump was installed very quickly.
Gerry and Davan were excellent. They protected the house and basement from extra dust and just going in and out to get the tools.
Digging up the yard to install the pipe...they replaced the sod and cleared the extra yard waste. Also they were very friendly with our dog.

Gerry, Davan, and Mario came to check the new installed sump pump. Made sure everything was working.
I'd give everyone 10 stars if I could!!!!

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15 Preventative Maintenance Tips For Your Foundation

This Preventative Maintenance Guide shows you the top 15 causes of foundation problems. Download now to protect your home, add value, and prevent damage to your home’s foundation.

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Satisfied Customer Reviews

Camden came and did a thorough inspection of our foundation and explained the findings well. I felt he was honest with his recommendations and did not try to convince us to do something that wasn't necessary.
Will use KC Waterproofing and Foundation Repair again and highly recommend.
Thank you Cam!
We recently had foundation repairs with multiple piers and poly-fill. Not only were they professional on-site, but one of the employees even noticed a package sitting outside starting to get rained on so they placed it in my mudroom. They kept me informed through the process and ensured I understood each repair prior to commencing.
Fran was incredible! He was prompt and very knowledgeable about our questions regarding our foundation. He showed us that we already had a bracing system and our foundation was secure. I would recommend him to anyone!
Fran Heisinger came out and gave a detailed and thorough inspection of our foundation. His experience, service and expertise assured us if we needed additional work, his crew and company could do the job. Highly recommend.
We recently used KC Waterproofing to do our foundation, put in an IBeam and jack post, multiple piers. When I say these guys did an excellent job from start to finish… I can’t even express it enough. Very professional. Very clean work. They cleaned up so well you can’t even tell we just had major work done. This was a week and a half project. The entire crew has just been so amazing in this hard time. I will forever recommend and be using them for future projects. I don’t quite remember every one’s name but the ones I do, Cam, Kyle, Jacob, Jesse, Gerry, Connor, you all were amazing and fantastic job. Start to finish!
The team showed up exactly when they were supposed to. They kept us informed with everything they were doing! The entire experience was excellent‼️
Mario came out to check the sump pump. After cleaning the pit out and checking both the main and backup pump he wiped everything done and left the area cleaner than when he got there. Very friendly and knowledgeable guy!
We recently had KC Waterproofing out at our home in North Kansas City, and I cannot say enough great things about Ryan Marshall and his team (Austin & Jacob). They worked at our property over the week of July 17/2025 - and absolutely blew us away with their professionalism, work ethic, and transparency.

Ryan took the time to thoroughly explain the problems we were facing, what caused them, and exactly how they were going to fix them. His honesty and willingness to go the extra mile truly set him apart.

Ryan and his assistant worked hard, were respectful of our home, and made sure everything was done right the first time. It's rare these days to find that level of care and craftsmanship. Because of professionals like Ryan, we’ll continue to turn to KC Waterproofing for future needs.

Highly recommend this company—especially if you get the chance to work with Ryan and his crew! When it comes to foundation issues we will always recommend KC Waterproofing. They have been in the business, are trusted, and will do the job correctly.
We are very happy with the service we received from KC Waterproofing.
We had a very good experience with KC Waterproofing foundation repair on our house in south Kansas City in February and highly recommend you give them an opportunity to look at your foundation for an estimate and any work to be done.