If you notice any of these issues, it’s time to act. Delaying concrete lifting can lead to further damage and higher repair costs.
When dealing with sinking concrete, two common solutions are polyjacking and mudjacking. Both involve injecting material beneath the slab to lift and stabilize it, but they work differently and offer distinct advantages.
At KC Pier, we use polyjacking—a superior method compared to traditional mudjacking. Our process involves injecting high-density polyurethane foam beneath the concrete through small, strategically placed holes. As the foam expands, it fills voids, compacts the soil, and lifts the slab back into place.
This advanced technique offers several advantages over older methods:
Trust KC Pier to deliver high-quality concrete lifting with minimal inconvenience to your daily life.
Pricing for concrete lifting depends on several factors, including the size of the area, the extent of the settlement, and the amount of material required. Here’s what you can expect:
For example:
At KC Pier, we believe in providing clear, upfront estimates so you know exactly what to expect before any work begins.
Concrete lifting—also called polyjacking—uses expanding polyurethane foam injected beneath sunken slabs to fill voids, stabilize soil, and raise concrete back to level. It is the modern alternative to mudjacking.
KC’s expansive clay soils, freeze–thaw cycles, seasonal moisture swings, poor drainage, compaction around new construction, and erosion create voids under slabs, causing driveways, sidewalks, patios, and garage floors to sink.
Most residential and commercial slabs: driveways, sidewalks, patios, garage floors, basement slabs, pool decks, porches, steps, and detached slabs/outbuildings.
We drill small 5/8\” ports, inject two-part polyurethane foam that expands to fill voids and compress soil, gently lift the slab, then patch the ports. Most slabs are ready for use within minutes.
Most projects take 1–2 hours depending on area size and number of sections. Walkways, patios, and driveways are typically usable the same day.
The polyurethane foam is waterproof, inert, and non-biodegradable. It resists shrinking and is designed to last the life of the slab.
Typical ranges: $300–$1,200 per small area and $800–$2,500 for larger/multi-section projects. Polyjacking is usually 30–50% less than full replacement. KC Pier provides free evaluations and clear written proposals.
Yes. Smaller holes, lighter material that won’t re-settle, waterproof fill, faster cure (minutes), longer lifespan, precise lifts, and cleaner jobsites—ideal for KC’s clay and moisture conditions.
Foam fills voids and stabilizes soil to reduce future movement. We may recommend drainage corrections (downspouts, grading) to prevent re-settling.
Most can, but severely cracked, crumbling, or structurally compromised slabs may require replacement. We’ll recommend the option that provides the best long-term value.
Yes. The lifting foam supports high loads, including cars, trucks, RVs, and trailers. After curing (minutes), normal traffic is safe.
Common KC causes: downspout discharge near slabs, erosion, poorly compacted fill, freeze–thaw movement, and drought-related shrinkage of expansive clays.
Immediately in most cases. Foam cures in 10–20 minutes; areas are typically open for foot and vehicle traffic the same day.
Yes. The foam is environmentally inert, non-toxic, and safe for soil and groundwater. It does not leach or break down over time.
Yes. We lift interior garage floors, basement slabs, warehouse floors, and commercial interiors with a clean, low-dust process.
Yes. We provide industry-leading warranties covering material performance and protection against settling as detailed in your proposal.
Specialized polyjacking crews, advanced foam materials, precision equipment, strong warranties, deep knowledge of KC soils, and integrated foundation repair and stabilization expertise.
If the slab is broken into multiple pieces, excessively thin, severely deteriorated, or structurally weak, replacement may be more cost-effective. We’ll advise based on condition and lifespan.
Yes. We offer free, no-pressure evaluations across the Kansas City metro and deliver a clear scope of work and written pricing before any repairs.
We will diagnose your foundation issue and explain the best solution(s) available for your time frame, budget and goals. We will never sell you on services you don't need.
One of our foundation repair experts will provide you with a fair, written estimate (including financing options) for a professionally installed foundation repair or waterproofing solution customized for your home.
As soon as our proposal is accepted, we will schedule a work date and an estimated time for completion, weather permitting.
All of the work will be performed by professionally trained KC Pier employees - not subcontractors. We will complete the work on your home with the same level of care, courtesy and professionalism as we would for our own family members.
Ready to fix your uneven or sinking concrete? Contact us today for a free consultation and estimate! Don’t wait until minor issues turn into major problems—KC Pier is here to provide you with professional, durable solutions designed to restore your concrete and extend its lifespan. Let us help you protect your property and ensure long-lasting results!
What an amazing team they are! Always striving for every customer to exceed their expectations. Also very responsive, informative, & attentive upon calls. Always going to be my first choice when it comes to this line of work, especially since I can trust them.
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