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What Is Concrete Leveling?

Concrete leveling is when professionals lift and level sinking concrete slabs, patios, driveways, or sidewalks using expanding polyurethane foam. This is called polyjacking, and it’s non-toxic, fast, and stronger than other concrete leveling solutions, such as mudjacking. 

Why Does Concrete Settle?

There are many reasons why concrete settles, including poor drainage, poor compaction, poor site conditions, and tree roots. The most common reason we see concrete settling is when water from gutters and rain washes dirt out from under your sidewalk or driveway. This creates pockets or voids underneath your concrete and allows it to settle. 
Another factor is clay-rich soil that expands and retracts according to moisture content.
This clay-rich soil expands when it’s saturated with water and shrinks when it dries out. The change in the moisture content creates unstable soil, which causes the concrete to move and sink.
Why Does Concrete Settle

Why Polyjacking Is Better Than Mudjacking Concrete Leveling

Polyjacking is faster, last longer, and stronger than mudjacking.



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What Is The Process Of Polyjacking Concrete Leveling?

Step 1: Dime-sized holes are drilled in the affected concrete.
Step 2: Polyurethane foam is injected underneath the slab.
Step 3: The foam will expand beneath the concrete, lifting the slab.
Addison Concrete Leveling

Polyurethane Foam Can Be Used To Lift And Level



Pool decks​



Concrete Steps​


Garage floors​

Before And After Images

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Benefits of Polyjacking

Fast Acting

15 minutes after injection, your concrete slab is ready to walk on or support vehicular traffic.


Polyjacking does not require any excavation.


The lightweight foam does not contribute to future soil settlement, unlike the heavy material used in mudjacking.

Environmentally Friendly

Polyurethane foam is inert and won't react with soil or moisture; it won't leach harmful chemicals into the ground.


Save up to 50% compared with traditional concrete slab replacement.


Once cured, the polyurethane material will not wash away.

Our Services

Concrete Leveling FAQs


How long does it take to lift a concrete slab with polyjacking?

It takes less than a day to lift and level a concrete slab using polyjacking.


Will my landscaping be disturbed?

No. There’s no need for excavation or heavy machinery.


Is the concrete leveling process noisy?

Concrete leveling using polyjacking is much quieter than completely replacing the slab.


Is the foam used in the polyjacking process safe and friendly to the environment?

Yes. Our expanding polyurethane foam is inert, meaning it won’t shift or dissolve into your soil.


Is there any maintenance needed after the concrete leveling is done?

To ensure your concrete stays level, experts recommend preventing water from draining toward your slab.


When is polyjacking not an option?

If your concrete slab is completely cracked and broken apart in many different sections, experts might suggest replacement.


How long will polyjacking concrete leveling last?

Our warranty is 5 years. Although the foam lasts indefinitely.



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The Real Seal Concrete Leveling Services In Chicagoland

If you need professional concrete leveling services, call us today. Our experts will inspect and level your concrete patio, slab, driveway, or sidewalk. We serve all of Chicagoland, including the cities below. If you don’t see your city listed, call us to find out!

  • Addison
  • Arlington Heights
  • Aurora
  • Barrington
  • Bartlett
  • Berwyn
  • Bolingbrook
  • Buffalo Grove
  • Calumet City
  • Chicago
  • Crystal Lake
  • Deerfield
  • DesPlaines
  • Downers Grove
  • Elgin
  • Elk Grove
  • Elmhurst
  • Evanston
  • Fox River Grove
  • Glendale Heights
  • Glenview
  • Highland Park
  • Hoffman Estates
  • Joliet
  • Lake Forest
  • Lake Zurich
  • Libertyville
  • Lombard
  • Mount Prospect
  • Naperville
  • Niles
  • Northbrook
  • Oak Park
  • Oak Lawn
  • Orland Park
  • Oswego
  • Palatine
  • Park Ridge
  • Plainfield
  • Roselle
  • Schaumburg
  • St. Charles
  • Skokie
  • Tinley Park
  • Waukegan
  • West Chicago
  • Wheaton
  • Wilmette
  • Winnetka
  • Woodstock
  • Woodridge