Concrete Lifting and Leveling Services St. Louis - STL Polyjack
Concrete raising, also known as concrete leveling, slab jacking, or Polyjacking, is a cost-effective alternative to tearing out and replacing sunken concrete slabs. Whether it’s a driveway, walkway, floor slab, or any other on-grade concrete surface, this process provides a durable and efficient solution.
At Saint Louis Polyjack, we specialize in stabilizing and leveling concrete for both residential and commercial properties—indoors and outdoors—quickly and affordably.
There are two primary methods for lifting settled concrete: Mudjacking and Polyjacking (polyurethane foam injection). While both techniques raise and level existing concrete, they differ significantly in terms of durability, environmental impact, and disruption to the surrounding area.
Concrete Raising Gallery
Before and After
Concrete lifting and leveling
Concrete lifting and leveling
Concrete Stairway Leveling
Polyurethane Vs Mudjacking
The installation process for Polyjacking and Mudjacking is similar in that both involve injecting material through small drilled holes in the concrete slab to fill voids and lift it. However, that’s where the similarities end.
Mudjacking uses a thick slurry—essentially a mix of soil, water, and heavy concrete—to raise the slab. While it can initially provide lift, it also adds significant weight (around 100 lbs. per cubic foot), which can contribute to further sinking over time.
Polyjacking, on the other hand, utilizes a lightweight, high-density polyurethane foam that weighs just 2 lbs. per cubic foot. This two-part polymer expands up to 15 times its volume after injection, efficiently filling gaps and lifting the slab. Once cured, it becomes completely inert, meaning it won’t break down or erode due to moisture—unlike the materials used in mudjacking.
Another key advantage of Polyjacking is its rapid cure time. While mudjacking requires 24 to 48 hours before the slab can support weight, polyurethane foam reaches full strength in just 10 minutes. This means there’s no need for cones, caution tape, or extended downtime—an especially important factor for businesses looking to minimize trip hazards and liability risks.
Why Choose STL Polyjack for Concrete Leveling in St. Louis?
At Saint Louis Polyjack, we bring over 20 years of experience in repairing sinking and settling concrete, restoring existing infrastructure to its original condition. Our work helps businesses stay operational, schools and universities keep students safe, and homeowners or buyers save money while satisfying lenders and inspectors during real estate transactions. Even construction professionals rely on us to level floors before installing new finishes or walls.
Long story short—if you have a cracked, sunken, or uneven slab, or a large void, call Saint Louis Polyjack first for a free estimate and consultation. Before you consider the exhausting and often frustrating process of mudjacking or full slab replacement, let us show you how Polyjacking can provide a faster, more effective solution.
We proudly offer driveway leveling in St. Louis and sidewalk leveling in St. Louis—helping homeowners and businesses maintain safe, stable concrete surfaces.
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STL PolyJack
6853 OLIVE BLVD,
ST. LOUIS, MO 63130
Operations
575 RUDDER ROAD,
SUITE 101-104,
FENTON, MO 63026
STL Polyjack is continuously monitoring the guidelines provided by the CDC, the World Health Organization, Federal, State, and Local governments. While we navigate through these unprecedented times, our customers remain our highest priority. STL Polyjack will remain open to serve its customers, as we have been considered an essential business by St. Louis County, MO, and are committed to maintaining the highest standards of safety measures
FREE Video - Estimation
STL Polyjack management has implemented extensive safety measures for our technicians and customers. We are currently offering FREE video estimation for our customers, all you need is a good cell phone with good internet connectivity. While filling the form, simply ask for video estimation and we will call you to schedule an appointment.