Concrete Raising

Granite City Concrete Raising has years of experience in lifting sunken concrete for residential, commercial, and municipal clients. Repairing settled concrete rather than replacing it not only saves time, it is quicker, less invasive, and keeps concrete materials out of our landfills.  Raising concrete can save you more than half the cost of traditional replacement methods! Examples of surfaces we raise include:

  • Residential: Driveways, sidewalks, porches and steps, pool decks, patios, and interior slab floors.
  • Commercial & Industrial: Factory floors, apartment complexes, equipment pads, etc.
  • Municipal: Roads, streets, highways, bridge approaches, curbs and gutters, and sidewalks.

Polyurethane Foam Vs. Mudjacking

Mudjacking has been used for decades to lift concrete that has settled, but the advent of polyurethane foam injection has made the process much quicker and less invasive than the mudjacking process.


Traditional Mudjacking

 Mudjacking requires drilling a series of 1” holes into a concrete slab and pumping a sand and Portland cement mixture into these holes to fill the caverns beneath and lift the concrete back into place. This slurry, which weighs in at 100 lbs. per cubic foot, will then need to cure before the concrete slab can be used.

Earth-Friendly HMI Polyurethane Foam

Our method involves making dime-sized holes in a concrete slab and then injecting HMI polyurethane foam components into these holes. Once combined, this mixture expands to fill any voids below the concrete and raises it to its original position. Weighing only 2 lbs. per cubic foot, this HMI polyurethane never loses density, making it strong, lightweight and permanent. In addition, HMI is the only company on the market that uses recycled materials, which make up 40% of the product. Unlike other polyurethanes, HMI foam does not contain formaldehyde, benzene, or toluene.

  • Fast
  • Cost-Effective
  • Non-Invasive
  • Smaller Holes
  • Lightweight and Durable

Environmentally Friendly