Polyjacking and Concrete Leveling in Independence, MO
Your driveway did not fail. The dirt underneath it moved. That is the story behind almost every job of polyjacking and concrete leveling in Independence, MO that we get called out for, and it is the reason lifting a slab costs a fraction of what pouring a new one does.
Olson Foundation Repair has worked out of a shop on Blue Ridge Boulevard since 1986, roughly fifteen minutes from Independence Square. We drill ports about the size of a penny, inject expanding polyurethane foam, fill the void, bring the slab back to grade, and you park on it the same afternoon.
What Our Polyjacking and Concrete Leveling Service Covers
Polyjacking raises settled concrete by injecting expanding polyurethane foam through small ports in the slab. The foam fills the void, compacts the loose soil, and lifts the concrete back to grade. Also called slabjacking, concrete raising, foam jacking, and concrete lifting.
Every Independence job includes:
- A free on-site assessment and written bid, no inspection fee
- Void mapping, so we lift where the soil failed
- Ports about 5/8 inch, not mudjacking’s two-inch holes
- A controlled lift back to grade
- Port patching, joint sealing, and cleanup
- A look at the drainage behind it
Exterior injections carry a two-year warranty, and the foam does not break down or wash out. We handle residential and commercial, interior slabs and exterior flatwork. If your concrete is crumbling or broken up, lifting only levels a broken slab, so we will point you to our concrete contractor crew instead.
What You Get From Concrete Raising Instead of a Tear-Out
Lifting a sound slab is not a compromise version of replacing it. For most Independence properties, it is the better outcome on every measure that matters.
- Use it the same day. The foam reaches structural strength in about 15 minutes. Walk on it immediately; park on it that afternoon. A new pour takes five to seven days of curing.
- Pay a fraction of replacement. Tear-out and repour runs $18 to $24 per square foot. Lifting the concrete you already own skips the demo, the haul-off, the forms, and the pour.
- Keep your yard intact. No jackhammers, no dump truck in the driveway, no torn-up landscaping. The rig works from the surface of the slab.
- Barely visible repairs. Our ports are about 5/8 inch across, roughly the size of a penny. Mudjacking needs holes two inches or wider that you will still see years later.
- Clear the trip hazard and the liability. In Independence, the sidewalk out front is yours to keep at grade, so a level panel is not just cosmetic.
- Stop water from working against the house. Restoring the slope on a patio or walk sends runoff away from the foundation instead of toward it.
- Add no weight to weak soil. Foam weighs 2 to 4 pounds per cubic foot, compared to roughly 100 for mudjacking slurry, and it is hydrophobic, so it will not erode.
- Keep the original concrete. In older parts of town, matching a ninety-year-old pour is difficult and expensive. Lifting sidesteps the problem entirely.
Seeing cracks in the basement wall, sticking doors, or water coming in too? That is a separate problem from a settled slab. Start with foundation repair in Independence or basement waterproofing in Independence.
What Polyjacking and Concrete Leveling in Independence, MO Costs
Here is the part most contractors keep vague.
Your polyjacking and concrete leveling cost is not really about square footage. It is about how much empty space is under the slab. A small front stoop sitting over a deep washout can cost more than a two car driveway that dropped an inch, because the foam is the expensive part and the void decides how much of it we pump.
So we price by the pound of material that actually goes under your concrete.
| Service | Olson 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. |
| New flatwork, 4 inch | $16 to $20 per sq. ft. |
| New flatwork, 6 inch | $22 to $26 per sq. ft. |
Lifting the slab you already have costs a fraction of replacing it, and you use it the same day.
What moves your number:
- Void depth. On the north end toward Courtney, washouts run deeper than they do on the upland lots.
- How much lift. Half an inch is a different job from three.
- Panel count. Six sidewalk squares is more setup than one patio.
- Access. A rig that can pull up to the slab beats one working around a Fairmount lot line.
- Whether we seal joints and cracks after the lift.
A warning on cheap bids. Lower quotes usually mean less foam. Underfill the void and the slab settles again in a year or two. If a bid comes in far below the rest, ask how many pounds it covers.
Full rates are on our pricing page, and financing is available.
Concrete Lifting vs. Mudjacking vs. Full Replacement
Concrete lifting is not a patch or a shortcut. When the slab is still structurally sound and only the soil beneath it failed, raising it is the correct repair. Replacing it means paying to haul off concrete that was never the problem.
| Polyjacking (foam) | Mudjacking (slurry) | Tear out and replace | |
|---|---|---|---|
| Time on site | A few hours | A day or more | 3 to 5 days, multiple visits |
| Usable again | About 15 minutes | 24 to 72 hours | 5 to 7 days of cure |
| Hole size | About 5/8 inch | 2 inches or larger | Not applicable |
| 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 can erode | Yes |
| Priced by | Pound of foam injected | Volume of slurry | Square foot |
The weight row is the one that matters in Independence. Our soil is already struggling to hold what is on it, and in the wettest parts of town the water table sits near the surface for weeks at a stretch. Mudjacking answers a weak soil problem by adding about a hundred pounds per cubic foot of wet slurry on top of the weak soil. Foam weighs almost nothing and will not wash out the next time Rock Creek gets three inches in an afternoon.
When foam is the wrong answer. If your driveway is spalling, crumbling at the edges, or broken into a dozen pieces, lifting it gives you a level pile of broken concrete. That is a job for our concrete contractor services, and we will tell you so during the estimate rather than take your money.
More on the method itself is on our Kansas City polyjacking and concrete leveling page.
Where Your Concrete Ends and the City's Begins
Your public sidewalk is your responsibility. The City of Independence requires the property owner to maintain a safe walking surface on adjacent sidewalks and keep them at the established grade, not above or below it.
The standard is not “not broken.” It is at the established grade, which is exactly the defect concrete lifting corrects. A heaved or settled panel is also a real liability if someone goes down on it.
Quick ownership guide for an Independence lot:
| What it is | Who handles it |
|---|---|
| Public sidewalk along your frontage | You, the property owner |
| Driveway, approach, private walk, steps | You |
| Patio, porch, pool deck, garage floor | You |
| Interior basement or garage slab | You |
| Street pavement (most streets) | City Municipal Services |
| I-70, MO 291, US 40, US 24, MO 78 (23rd Street) | MoDOT |
Not sure where your line falls? Ask us during the estimate. Sometimes the honest answer is “call the city, not us,” and we would rather say that than sell you something.
What We Lift Around Independence Properties
If it is a free-floating slab and it has dropped, we can usually raise it.
- Driveways and garage aprons. The most common call we get here. That lip where the driveway meets the garage scrapes bumpers and only gets deeper.
- Front walks and entry steps. The classic trip hazard, and the one your guests actually feel.
- Public sidewalk panels along your frontage. In Independence, these are yours to maintain at grade.
- Patios. Especially ones that have started sloping back toward the house, which is how a patio turns into a wet basement.
- Garage floors and basement slabs. Concrete floor leveling inside the structure, including under footing post piering.
- Pool decks. A genuine safety issue with bare feet.
- Void filling under stoops and porches, even when the slab is still sitting level for now.
- Commercial flatwork. Storefront walks around the Square, apartment and church walkways, and warehouse floors along the I-70 and 291 corridors.
Why Independence Homeowners Choose Olson as Their Concrete Leveling Company
Plenty of outfits can inject foam. Here is what is actually different about hiring us.
- Since 1986, with a shop nearby. We are not a franchise that opened an Eastern Jackson County territory last spring, and we are not routing your call to another state.
- We permit through the right office. Independence is not unincorporated Jackson County. It runs its own Community Development Department under the 2018 IRC and IBC, with Building Inspections reachable at (816) 325-7401. We know which projects need paperwork and which do not.
- We tell you when leveling is the wrong call. If the slab is too far gone, or if what you really have is a drainage failure that will sink it again, we say so. Lifting concrete over an unaddressed drainage problem is a two-year fix at best.
- We see the whole picture. Most concrete leveling companies only lift concrete. We also do foundation piering, wall crack repair, waterproofing, and drainage. So when a settled patio is quietly funneling water at your foundation wall, we recognize it, because we are the ones who get called for the wet basement six months later.
- Free estimates, no inspection fee, no pressure. No “today only” discount either.
- Your neighbors already vetted us. 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 the reviews.
We also handle concrete raising in Raytown, Blue Springs, Lee’s Summit, and across the rest of our service area.
FAQs About Concrete Leveling in Independence, MO
We price poly lifting at $10 per pound of foam injected, so your total depends on the size of the void under the slab rather than the square footage on top. Replacing that same driveway runs $18 to $22 per square foot at our rates. We give you an exact figure after a free on-site look.
You are. The City of Independence requires the property owner or occupant to maintain the adjacent sidewalk at the established grade, neither above nor below it, and to keep it safe and clear. That makes a settled or heaved panel your liability, and it is exactly what concrete lifting corrects.
For most local conditions, yes. Foam weighs 2 to 4 pounds per cubic foot while mudjacking slurry weighs around 100, so foam does not load soil that is already weak. It is also hydrophobic, which matters in a city where the water table sits near the surface after heavy rain.
The foam itself is permanent; it does not erode, rot, or compress. What is not permanent is the ground around it. If a downspout or a bad grade keeps carrying soil away six feet from the repair, a new void opens there. That is why we walk the drainage before we quote the lift.
Lifting existing concrete on private property generally does not require the kind of permitting that structural or new construction 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 handle whatever applies.
Yes, and it is often the better option there. The Truman Heritage District is the city’s only locally designated historic district, and exterior work in it can require a Certificate of Appropriateness from the Heritage Commission, which meets monthly. Lifting keeps the original concrete in place instead of replacing it, and you can confirm your specific situation with the Historic Preservation Division at (816) 325-7419.
Most Independence driveways, walks, and patios are a single visit finished 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 comparison, means five to seven days of curing.
That is the transition between the compacted building pad and the backfill placed around the foundation when the house was built. Backfill keeps consolidating for decades, and water running off the roof or along a utility trench accelerates it. Foam fills that void and compacts the loose soil rather than just bridging over it.
Partly. Filling the void removes what pulled the slab apart, hairline separations often tighten as the panel comes back together, and we seal the joints afterward. What lifting cannot do is rebuild concrete that has already gone to pieces. If yours is spalling at the edges, replacement is the honest answer.
Usually not. Settling and soil movement sit in the standard exclusions. The exception is when something else caused the void, like a service line washing soil out, so it is worth a call before you write it off.
Yes. The foam cures by chemical reaction, not by drying, so a cold morning does not stop it the way it stops a pour. Winter is often the easier month to book, because the calendar fills in spring once everyone sees what February did to their flatwork.
Get Your Free Independence Concrete Leveling Estimate
No inspection fee. No obligation. We come out, measure how far the slab has dropped, find where the voids are, tell you what opened them, and hand you a number you can actually plan around. If lifting is not the right repair, we will say that too.
Call (913) 592-3300 or request your free estimate online and get a straight, no-pressure price on polyjacking and concrete leveling in Independence, MO.
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