Polyjacking in Overland Park, KS
Lift Your Sunken Concrete. Skip the Tear-Out.
Your driveway did not fail. The dirt under it moved. That is the story behind nearly every sunken slab in this city, and it is why polyjacking in Overland Park, KS, costs a fraction of what tearing the concrete out does.
Olson Foundation Repair has been lifting settled concrete across Johnson County since 1986. We inject expanding polyurethane foam under the slab, fill the void, raise it back to grade, and you can usually drive on it the same afternoon.
Why Concrete Sinks in Overland Park (It Is the Clay)
Overland Park sits on silty clay loam over heavy clay subsoil, all of it on a shelf of limestone and shale. That clay acts like a sponge. It swells when the March through June rains soak it and shrinks when a July drought bakes it. Every cycle opens a little more air under your concrete. Gravity does the rest.
What makes it worse here:
- The limestone underneath blocks drainage. Water hits that shelf, travels sideways, and washes fine soil out from under your slabs.
- Roughly 42 inches of rain a year, most of it dumped in a few wet months.
- A 36 inch frost depth in Johnson County. Freeze, thaw, repeat.
- Rolling terrain. On sloped lots, common around the Indian Creek and Tomahawk Creek corridors, runoff scours the soil out faster.
North OP and South OP Sink for Different Reasons
North and central (roughly 75th to 95th, the older Metcalf neighborhoods). Original 1950s and 1960s concrete with sixty-plus winters of clay movement under it, plus downspouts and drainage that have been quietly failing for decades.
South (the 135th corridor, Blue Valley, Prairiefire, BluHawk, down toward 179th). Newer homes, same sinking, different cause: builder backfill that never got fully compacted. We regularly lift garage aprons on houses under fifteen years old.
Seeing cracks inside, sticking doors, or water in the basement, too? That is a different problem. Start with our Overland Park foundation repair and basement waterproofing page.
How Polyjacking in Overland Park, KS Actually Works
Same four steps we have used on every Kansas City job since 1986. Here is what they look like when the problem is a sunken slab.
Contact Us Now
Call or fill out the form, and we will get you on the schedule, usually within a few days. Free in-home consultation, no inspection fee.
Get an Assessment
We come out and measure how far the slab has dropped, find where the voids are, and figure out what opened them up. Then we walk you through your options and hand you a bid. If your concrete is crumbling or broken into pieces, we will tell you it needs replacing rather than take your money to lift a slab that will not hold. That happens, and you should want a contractor who says so.
Complete Work
Most Overland Park driveways, patios, and walks are a single visit, done in a few hours.
- We drill ports about 5/8 inch across, roughly the size of a penny. Mudjacking needs holes two inches or wider, and you’ll see them for years.
- Two-part polyurethane foam goes in under pressure. It expands, fills the void, packs the loose soil back down, then starts lifting.
- We raise the slab in small increments and watch it the whole way up so it comes back level without cracking.
- Ports get patched, and the site gets cleaned up.
No jackhammers. No forms. No week of orange cones in your driveway.
Get Peace of Mind
The foam is structurally cured in about 15 minutes. Walk on it right away, park on it the same day. The trip hazard is gone, and the void under your slab is filled.
Concrete Leveling vs. Tearing It Out and Replacing It
Concrete leveling is not a patch job or a shortcut. When the slab itself is still sound and only the dirt under it has failed, lifting it is the correct repair. Replacing it means paying to remove concrete that was never the problem.
| Polyjacking (foam) | Mudjacking | Full replacement | |
| Time on site | A few hours | A day or more | 3 to 5 days, multiple visits |
| Usable again | 15 minutes to same day | 24 to 72 hours | 5 to 7 days of cure |
| Hole size | About 5/8 inch | 2 inches or more | N/A |
| Weight added to soil | 2 to 4 lbs per cubic foot | About 100 lbs per cubic foot | Full slab weight |
| Water resistant | Yes, foam is hydrophobic | No, slurry erodes | Yes |
| Typical relative cost | Priced by the pound of foam | Cheaper up front, shorter life | $18 to $24 per sq ft |
The weight row is the one that matters here. Our clay is already struggling to hold what is on it, and mudjacking answers a weak-soil problem by pouring a hundred pounds per cubic foot of wet slurry onto the weak soil. Foam weighs almost nothing, and it will not wash out the next time we get four inches of rain in a weekend.
Foam is not always the answer, though. If your driveway is spalling or cracked into a dozen pieces, lifting it just gives you a level pile of broken concrete. That is a job for our concrete contractor services instead.
More on the method itself is on our main Kansas City polyjacking and concrete leveling page.
What Drives Your Concrete Raising Cost in Overland Park
Your concrete raising cost is not about square footage. It is about how much empty space is under the slab. A small stoop over a deep washout can cost more than a big driveway that dropped an inch, because the foam is the expensive part and the void decides how much we pump.
So we price by the pound of foam that actually goes under your slab.
| Our rate | |
| Poly lifting | $10 per pound of foam injected |
| Tear out and replace, driveway | $18 to $22 per sq. ft. |
| Tear out and replace, patio | $20 to $24 per sq. ft. |
Lifting the slab you already have is a fraction of replacing it, and you park on it the same day instead of waiting out a week of curing.
What moves your number:
- Void depth. The big one.
- How much lift you need. Half an inch is a different job than three.
- Number of slabs. Six sidewalk panels is more setup than one.
- Access. A driveway we can pull the rig up to beats a patio behind a locked gate.
- Crack sealing after the lift.
One honest warning
You will find cheaper polyjacking quotes in Overland Park. We will not pretend otherwise.
The difference is usually how much foam goes in. Underfill the void, and the slab settles again in a couple of years, and you pay twice. If a bid comes in far under everyone else’s, ask how many pounds they are quoting.
Full rates on our pricing page. Financing available if the timing is tight.
What We Poly Jack Around Overland Park Homes
If it is a free-floating slab and it has dropped, we can usually poly jack it back up.
- Driveways and the garage apron. The most common call we get in OP. That drop where the driveway meets the garage is a bumper-scraper, and it only gets deeper.
- Front walks and steps. The classic trip hazard, and the one your mail carrier and your guests actually feel.
- Patios. Especially the ones that have started sloping back toward the house, which is how a patio turns into a basement water problem.
- Garage floors.
- Pool decks. Common around south OP homes and a genuine safety issue with bare feet.
- Basement floors and interior slabs.
- Void filling under stoops and porches, even when the slab is still sitting level for now.
- The private walk between your front door and the public sidewalk.
One thing worth knowing about Overland Park sidewalks
The City maintains the public sidewalk and curb in the right-of-way. If a panel out front has heaved or dropped, file a curb and sidewalk repair request through OPCares.
Everything on your side of that line is yours: the driveway, the approach, the walk to your door, the patio, the pool deck, the garage floor. That is the concrete we lift. Not sure where the line falls on your lot? Ask us when we come out. Sometimes the answer is “call the city, not us.”
Why Overland Park Homeowners Call Olson
Plenty of people can inject foam. Here is what is actually different about working with us.
- We have been here since 1986. Forty years in this metro. We were leveling concrete in Johnson County before most of the companies bidding against you today existed. We are not a franchise that opened a KC territory last spring.
- A local crew, not a call center. The person who looks at your driveway works for Olson. So does the person who lifts it. Nobody gets handed off to a “system design specialist” whose job is to sell you the biggest package on the truck.
- We tell you when polyjacking is the wrong call. If the slab is too far gone, or if what you actually have is a drainage problem that will just sink the slab again, we will say so. Lifting concrete over a drainage failure is a two-year fix at best, and we would rather fix the cause. Sometimes the honest answer is drainage solutions or new gutters and downspouts first, then the lift.
- We can see the whole picture. Most concrete leveling outfits only lift concrete. We also do foundation piering, waterproofing, and drainage. So when a settled patio is quietly funneling water toward your basement wall, we recognize it because we are the ones who get called out to fix the wet basement six months later.
- Free estimates. Straight pricing. Same-day use. No inspection fee, no “today only” discount, no pressure.
- Your neighbors already checked us out. 4.7 stars across 90+ Google reviews, BBB A+ accredited, and named one of Kansas City’s top foundation repair contractors by BloggerLocal and TheHomeMag. Read what our customers say.
Frequently Asked Questions About Concrete Leveling in Overland Park
We price poly lifting at $10 per pound of foam injected, so your total depends on how big the void under your slab is, not the square footage on top. Replacing that same driveway instead runs $18 to $22 per square foot, so lifting is almost always the cheaper route. We give you an exact number after a free on-site look.
For Overland Park’s clay, usually yes. Foam weighs about 2 to 4 pounds per cubic foot, while mudjacking slurry weighs around 100 pounds per cubic foot, so foam does not add load to soil that is already weak. It is also waterproof, so it will not erode the way slurry can in our wet springs.
The polyurethane foam itself does not break down, wash out, or erode, so the fill is permanent. What can change is the soil around it. If poor drainage keeps washing dirt away next to the repair, new voids can open up nearby, which is why we look at your drainage during the estimate.
The heavy clay subsoil here swells when it is wet and shrinks when it is dry, which opens voids under slabs. Homes north of 95th often have 60-year-old concrete over decades of that cycling, while newer homes south of 135th usually settle because builder backfill was never fully compacted.
Most Overland Park driveways, patios, and walks are done in a few hours. The foam reaches structural strength in about 15 minutes, so you can walk on it right away and park on it the same day. Full replacement, by contrast, takes 5 to 7 days of curing.
Lifting existing concrete on private property generally does not require the kind of permitting that structural foundation work does. Work in the public right-of-way is a different matter. We will tell you which category your project falls into before we start, and we will handle whatever paperwork applies.
The City of Overland Park maintains public sidewalks and curbs in the right-of-way, and you can submit a repair request through OPCares. Your driveway, driveway approach, private walk, patio, and garage floor are your responsibility. We handle everything on your side of that line.
It closes the void that caused the crack, and it can tighten hairline cracks as the slab comes back together, and we seal joints after the lift. But it will not rebuild concrete that is crumbling or broken into pieces. If your driveway is spalling or badly fractured, we will tell you it needs replacement rather than lifting.
Yes. Polyurethane foam cures chemically rather than by drying, so cold does not stop it the way it stops a concrete pour. Winter is often a good time to get on the schedule, since spring is when everyone notices what the freeze-thaw cycle did to their driveway.
Almost always. Replacement runs $18 to $22 per square foot for a driveway at our rates because you are paying to demo, haul off, form, pour, and cure. Lifting the slab you already have skips all of that. It only stops making sense when the concrete itself has failed.
Your Driveway Is Not Going to Level Itself
Settled concrete does not stabilize. Every wet spring and every dry August, that void under your slab gets a little bigger and the drop gets a little worse. The good news is that this is one of the least disruptive repairs you will ever make to your house. One visit, a few hours, and the trip hazard is gone.
We will come out, look at it, and tell you what it needs. No charge, no obligation, and no pitch for work you do not need. Call Olson Foundation Repair today and find out what polyjacking in Overland Park, KS, can do for your sunken concrete.
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