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Concrete leveling in Mount Prospect, Illinois is done using a technique called polyjacking to raise and level sinking concrete slabs, patios, pathways, and driveways. This method is put in place using expanding polyurethane foam. In comparison to other techniques such as, it is a non-toxic concrete leveling method that operates more quickly and efficiently.

Why Does Concrete Settle?

Concrete settles for several reasons, including poor drainage, bad site conditions, low-quality compaction, tree roots, and many more. The most common cause is when rainwater and water from your gutters wash away the dirt from under your sidewalk or driveway. This creates pockets or voids under the existing concrete, which eventually causes it to settle.

Another reason is the presence of clay-rich soil, which expands and contracts as per its moisture level. When the soil is saturated with water, it expands and then, when the soil dries, it contracts. Thus, the soil remains unstable and causes the concrete to continuously move and sink.

Concrete Leveling Using Polyjacking

Soil that is equally solid and durable as the concrete itself can successfully sustain it. If not, it might be unable to carry the weight. The slab cannot be replaced if the problem is unstable soil.

Types of Concrete Leveling



Pool Decks



Concrete Steps


Garage floors

Poly Jacking Process

The polyjacking process includes:

Sidewalk lifting foam process

Step 1: Dime-sized holes are drilled in the sunken concrete surface.

Step 2: Polyurethane foam is injected underneath the surface through the hole.

Step 3: The foam beneath the concrete expands, lifting the slab.  

The polyurethane foam used in polyjacking is inorganic, therefore it doesn’t break down or dissolve over time. The polyjacking method offers a reliable and practical repair method for sinking concrete.

The Benefits of Polyjacking​

Quick Action

Merely 15 minutes after the injection, you can easily walk all over the concrete slab. The slab is strong and stable enough to accommodate vehicular traffic as well.

Minimally invasive

The technique is barely invasive for owners as it does not involve any major excavation or digging.


The foam is made up of lightweight polyurethane which is better when compared to heavy-weight materials used in other techniques like mudjacking.


The foam used for polyjacking does not allow any dangerous substances to seep into the ground as it fills the voids in the soil.


Owners can save up to half of the conventional concrete slab replacement costs if they opt for concrete leveling by polyjacking.


Polyurethane foam is completely waterproof and highly durable.

What Our Customers Are Saying

We Offer Concrete Leveling Services Near You Mount Prospect, Illinois

Call The Real Seal immediately if you need expert concrete leveling services in and around Mount Prospect, Illinois. Any patio, slab, driveway, or sidewalk made of concrete will be examined and then leveled by our technicians. If your city isn’t listed, get in touch with us to learn why.

Along with Mount Prospect, Illinois, we also provide concrete leveling services in the following locations:


“Not Everything’s Better When Wet”®