The soil under Lawrence is hard on foundations, from the expansive shale beneath the bluffs to the river deposits in the North Lawrence floodplain.
The soil under Lawrence is hard on foundations, from the expansive shale beneath the bluffs to the river deposits in the North Lawrence floodplain. As that ground shifts, walls crack, doors stop latching, and floors settle out of level. KC Waterproofing and Foundation Repair has fixed these problems for local homeowners since 1985, more than 30,000 homes, every one backed by a lifetime transferable warranty. Our team starts every foundation repair with a free inspection to find what is moving beneath your home.
A foundation that has started to move shows it through cracked walls, doors that no longer latch, and floors that have lost their level. These signs come from the ground shifting under the house and taking the structure with it. Caught early, the repair stays smaller and less involved than the structural work a neglected foundation eventually needs. A professional inspection confirms what is behind the changes you are seeing at home.
A crack in a basement or foundation wall runs up the block in a stepped line along the mortar joints, usually wider at one end than the other. That taper means one part of the foundation has settled lower than the rest. On Lawrence’s bluffs, where the depth to bedrock changes from one footing to the next, one section loses support while the next still holds, and the wall splits between them.
A door drags on its frame or will not latch without a push, or a window stiffens and shows an uneven gap along one edge. The opening has racked out of square as the wall around it settled, so the door or window no longer fits it. The ones on the side of the house sitting over the deepest clay usually shift first.
A floor tilts toward one wall, or a spot toward the middle of a room gives underfoot. The support below has settled, either the footing along the outside wall or a post carrying the center of the house. Over the expansive clay on the bluffs, one side of a home often drops more than the other, leaving a slope you can feel as you cross the room.
A basement wall leans inward or carries a horizontal crack partway up its height. Soil outside is pressing against it hard enough to bend it inward. This shows up most in North Lawrence, where the floodplain keeps the ground saturated and the wet soil pushes on the wall from outside.
Water pools on the basement floor after a storm, or a damp line and a musty smell settle along the base of a wall. It comes in through the cracks that foundation movement opens, and near the river the high water table keeps feeding them. A chalky mineral line left on the block marks where the water has been sitting.
Most foundation trouble in Lawrence traces back to the clay in the soil. The bluffs where much of the city sits are underlain by the Lawrence Shale, which weathers into a clay that takes on water and expands through the wet months, then dries and pulls back in summer. A foundation caught in that ground gets pushed when the clay swells and loses support when it shrinks. That repeated movement is what opens cracks and drops one part of a house below another.
The rock under those uplands adds a second problem. Limestone bedrock sits close to the surface across much of Lawrence, but the depth to it changes sharply from one spot to the next, so one footing can rest on solid rock while another a few feet away bears on deep clay. Those two footings settle at different rates, and the house between them takes the strain. This is the uneven settling behind a stair-step crack in a block wall or a door that racks out of square.
North Lawrence sits in different ground altogether, down on the Kansas River floodplain. Homes there rest on deep river-laid soil with a high water table, and after heavy rain or a river rise the saturated ground presses against foundation walls with real force. That pressure works on basement and crawl space walls from outside, bowing them inward and finding any crack to push water through. Between the shale on the bluffs and the floodplain by the river, a lasting repair depends on matching the fix to the ground a particular home sits on.
KC Waterproofing and Foundation Repair uses three main methods to correct a failing foundation, and an inspection determines which one fits your home. Each is suited to a different kind of foundation problem, from a settling house to a bowing basement wall. The right choice comes down to what the inspection finds at your Lawrence home. Below is how each method works and the problem it solves.
Push piers carry a settling foundation down to firmer ground below the active clay. Each pier is a steel tube driven deep enough to reach stable soil or bedrock, then the weight of the house transfers onto the piers so the settling stops. On Lawrence’s bluffs, where shallow bedrock sits at an uneven depth, piers reach past the clay that keeps shifting to something that holds. Where conditions allow, the piers can also raise a settled section back toward its original height.
A basement wall bowing under pressure from saturated soil gets straightened and held with wall anchors or steel braces. Anchors reach out to stable soil beyond the foundation and draw the wall back as they are tightened, while braces set against the wall to stop it from moving further inward. In parts of Lawrence near the river, where the floodplain keeps the ground wet against the foundation, that outside pressure is what pushes a wall inward. Both methods hold the wall against the force that moved it.
For a wall with cracks or an early inward bow, carbon fiber strips bond across the inside face to lock it in place. The strips resist the pressure trying to push the wall further, holding it flat without the excavation a full wall replacement would take. They lie flat enough to finish over, so a repaired wall can still be covered or painted. This works best on walls caught before they have moved far.
A free inspection. A written repair plan. The recommended work explained before you decide.
We inspect the concern and the conditions around it.
We explain our findings and prepare your written repair plan.
Our team completes the agreed work with care for your home.
We explain the completed work, care and written warranty.
4.9 / 5 from 1,004 Google reviews.
Everyone I’ve interacted with from KC Waterproofing has been a delight. Friendly, professional and hardworking - from our Foundation Specialist Patrick to every member of Schylur’s crew who completed the work. Their clear communication with me throughout the course of the project was very appreciated. The crew clearly enjoys working together as well as the work they are doing, which gives me full confidence in the caliber of the end result. I would contract them again without reservation and happily recommend them to anyone in need of crawl space waterproofing services.
Connor and his crew did an excellent job fixing our foundation. I can't believe they finish it in 5 days. Hardworking and professional crew. I would recommend them to anybody. Even clean up the basement really well.
Connor and his crew did an excellent job fixing our foundation. They finish it in 5 days and we love the result. Left our basement spotless as well. Would recommend them to anybody.
Mario serviced my sump pump today and did a good job. He also replaced tape on my wall shield. He provided excellent customer service and was willing ti come out any time needed or said to call him anytime if I had any questions.
Great price, great work! In just 3 days, Jesse’s team added two sump pumps and over 40’ feet of channeling with the full wall systems. No more towels, fans, and dehumidifier after every big rain storm!
KC Waterproofing and Foundation Repair has taken incredible care of my home through multiple visits. Gary and Davan handled my initial sump pump installation and crack repairs, and they were not only skilled but genuinely thoughtful throughout the process. We had a bit of early miscommunication, and instead of brushing it aside, they listened, acknowledged what happened, and adjusted the plan so everything aligned with what I needed. They brought me in at every step—walking me through pump location options, explaining the exit pipe decisions, and making sure I felt confident about the work being done. Their friendliness and respect made a stressful repair feel manageable. Later on, I had some cracks that needed to be reassessed, and Mario came out to take a look. He was incredibly kind, patient, and thorough, and he did an amazing job with the additional repairs. His calm, reassuring approach made me feel completely taken care of. I also want to highlight Don, the manager, who is just as kind and committed to making sure customers feel heard and supported. It’s clear this team truly values doing right by people. I’m grateful for their care and would absolutely recommend them for any foundation repair or waterproofing needs.
I am extremely grateful for the amazing work done by Gerry Reynolds and his crew at KC Water Proofing! They did an amazing job installing a drainage system, sub pump, and wall wrap. I would recommend them to anyone needing peace of mind in water proofing their sub basement. Thank you for the hard work!
Excellent service and work! I’ve worked with KC Waterproofing and Foundation Repair twice now (for foundation work and most recently window well/waterproofing work). I have been satisfied with their work both times. Always easy to schedule and Recently Riley helped with a quote and was not pushy about moving forward; which was my experience a few years ago too. They don’t take up hours of time to give a quote which I appreciate. The team that did the recent work (main contact was Schuyler) were easy to work with and talk too, very kind. You can tell this group of people works together and works together well. They had a lot of hand digging and they did it very quickly. When an unexpected issue arose (removing some sidewalk) Schuyler laid out the what/why/how plainly in an easy to understand way. They did replace the sidewalk concrete. It was a big job and they got it done in a day and a half and were in high spirits throughout. They cleaned up a lot after the project too, which is appreciated. Schuyler did a final walk-through and answered any questions I had. Pricing was good too, I got another quote that was astronomical for pricing and the other company wasted 3 hours of my time to provide a quote. If I need anything in the future I won’t bother with a second quote as I’ve always had excellent experiences with KC Waterproofing. The support staff is very kind and helpful too, as well as prompt. Overall, excellent experiences; highly recommend!
We had a leak in what we thought was our foundation. Water coming in under our basement floor. Francis Heisinger came and checked it out for us. He could have recommended a French drain that would entail digging, pipes, removing and replacing concrete and lots of money. Being the honest man that he is, he gave us his opinion as to what the problem entailed. Thank you so very much. Should we ever need foundation work done, we will definitely use this company!
KC Waterproofing starts with a free inspection, recommendations for your property, and written promises behind the work. Serving Kansas City homeowners since 1985.
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“Had an initial consultation with Camden. He was upfront, professional, honest, and very knowledgeable. We haven’t yet made a decision as to next steps, but our experience with the consult was top-notch.”
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Before you decide
Answers about repair options, cost and next steps for your property.
Repair settlement, bowing walls and structural movement with a plan based on your home.
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Manage water intrusion with drainage, sump pumps and waterproofing designed around the source of the leak.
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Address moisture, humidity and damaged supports beneath your home.
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