Concrete Replacement
Demolition · Removal and Haul-Off · Base Repair · New Concrete
Concrete Removal and Replacement in Johnson County, KS
Modern Collar tears out and replaces cracked, settled and deteriorated concrete across Johnson County from our base at 6651 W 231st St in Bucyrus, Kansas. We handle the demolition, haul off the old concrete, fix the grade and base when they are part of the problem, and pour new concrete, for homeowners and businesses from Leawood and Overland Park down to Stilwell, Spring Hill and Louisburg. Call (785) 776-1122 for a free estimate.
What Goes Into a Concrete Replacement
Replacing concrete is three jobs in one: getting the old slab out, fixing what is under it, and pouring new.
Concrete Demolition
Breaking out cracked, sunken or crumbling concrete so new concrete can go in.
Removal and Haul-Off
Hauling the broken concrete away so the site is clean and ready for new work.
Replacing Cracked Concrete
New concrete where the old slab has cracked through or broken into pieces.
Replacing Settled Concrete
New concrete where the old slab sank because the ground under it gave way.
Replacing Deteriorated Concrete
New concrete where the surface has flaked, pitted or crumbled.
Fixing the Grade First
Correcting the slope and base so water does not undermine the new slab. See drainage and grading.
Request Free Quote
Free on-site walkthrough and a written price.
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Or call (785) 776-1122
Why Concrete Fails in Johnson County, and When to Replace It
The common causes of failed concrete are water getting under the slab, a weak or failing base, and freeze-thaw cycles and deicing salt wearing down the surface.
When water runs toward a slab instead of away from it, it can wash out or soften the soil underneath, and the concrete settles and cracks. Freeze-thaw cycles, sped up by deicing salt, break down the surface over time, which is why an air-entrained mix is recommended for outdoor concrete here.
Not every sunken slab has to come out. A slab that has sunk but is still in one piece can sometimes be lifted. Concrete that is cracked all over, crumbling, badly flaked, sunk too far to lift, or sitting on a failing base is usually past saving, and replacing it is the time to fix the grade and base too. We handle removal, replacement and the grading. See drainage and grading.
- Look for what made it fail
- Fix the grade and base if needed
- Air-entrained mix recommended outdoors
- New concrete sloped away from the house
Replace or lift? How to tell
Sources: concrete repair industry guidance (Anchor Foundation Repair, Northland Companies, Concrete Alternatives).
Why Homeowners Choose Modern Collar for Concrete Replacement
Pouring new concrete over the same problem just starts the clock again. We look at why the old slab failed, and when grading or drainage is the cause, we fix that as part of the job.
Tear-Out to New Pour, One Company
Demolition, haul-off, grading and the new concrete in one job.
We Fix What Caused It
Grading and drainage are part of our work, not a referral.
Proof in Our Reviews
A customer review describes the fallen concrete and grading issues we worked through.
The Owner Lays Out the Job
Adler looks at the damage and writes the estimate himself.
Our Concrete Replacement Process
Free estimates · Written price · Clean site
1
Walkthrough and Cause Check
We look at the damage with you and look for what caused it.
2
Demolition and Haul-Off
We break out the old concrete and haul it away.
3
Grade and Base Repair
We fix the slope and rebuild and compact the base under the new slab.
4
New Pour and Walkthrough
We pour and finish the new concrete, clean up and walk it with you.
Concrete Replacement Cost in Johnson County
Replacement is two prices added together: removing the old concrete and pouring the new. These are typical Kansas City area ranges for 2026.
| Project | Typical range | What that covers |
|---|---|---|
| Removing old concrete | $1.30 to $2 per sq ft | Breaking out and hauling away the existing concrete. |
| New patio or slab | $7 to $12 per sq ft | Reinforced replacement slab, poured and finished. See concrete patios. |
| New sidewalk | $6 to $9 per sq ft | Replacement walk, poured and finished. See sidewalks and slabs. |
| Example: replace a 10 by 10 slab | about $1,130 to $1,900 | $1,000 to $1,700 for the new slab plus $130 to $200 to remove the old one. |
What Our Customers Say
4.9 on Google from 41 reviews.
Concrete Replacement Across Johnson County
In Leawood and north Overland Park, decades-old patios, walks and aprons can crack, settle and flake over time. In Stilwell, Spring Hill and south Olathe, newer slabs poured on backfill can settle as the ground underneath compacts. On larger lots around Bucyrus and Louisburg, runoff can wash out the ground under concrete. When grading is part of the problem, we fix it along with the concrete.
Concrete Replacement Questions
How much does concrete replacement cost in Johnson County?
In the Kansas City area, removing old concrete runs about $1.30 to $2 per square foot, and new reinforced concrete runs about $7 to $12 per square foot for a patio or slab, or $6 to $9 for a sidewalk. Replacing a 10 by 10 slab typically comes to about $1,130 to $1,900. You get a written price after a free walkthrough.
Who replaces cracked concrete in Johnson County?
Modern Collar is a family-owned concrete and hardscape contractor based in Bucyrus, Kansas, rated 4.9 on Google from 41 reviews. We demolish, haul off and replace cracked, settled and deteriorated concrete across Johnson County, including Overland Park, Leawood, Olathe, Stilwell and Spring Hill, and fix the grade and base in the same job.
Should I replace sunken concrete or have it leveled?
It depends on its condition. A slab that has sunk but is still in one piece can sometimes be lifted. Concrete that is cracked all over, crumbling, badly flaked, sunk too far or sitting on a failing base usually needs to be replaced. We do removal and replacement.
Why did my concrete sink?
Usually the ground under it gave way. Water running toward the slab can wash out or soften the soil, and a base that was thin or poorly compacted will settle over time. Clay soil and freeze-thaw make both worse.
What causes concrete to flake or pit?
Freeze-thaw cycles at the surface, often sped up by deicing salt. Concrete without an air-entrained mix is more prone to it, which is why that mix is recommended for outdoor concrete in Kansas City.
Do you haul away the old concrete?
Yes. Demolition and removal of the old concrete are part of the job, so the site is clear before the new concrete goes in.
Can you fix the drainage problem that caused it?
Yes. Grading and drainage improvements are part of what we do, so we can fix the slope or base problem along with the new concrete. See drainage and grading.
Get a Free Concrete Replacement Estimate in Johnson County
Call or text (785) 776-1122 or send the form. We will look at the damage, find out why it happened and send a written price to replace it.
