weight scale mud vs poly with text logo LRCPOLYURETHANE FOAM VS MUDJACKING

There are a few slabjack methods to choose for completing a concrete raising project. Mudjacking is the oldest and most commonly known process for lifting and leveling concrete. Raising concrete with polyurethane foam injections, also known as foam jacking or poly jacking, is a reliable alternative to mudjacking. Level Rite Concrete uses polyurethane foam to raise uneven concrete. There are several advantages to lifting and leveling concrete with polyurethane foam vs. mudjacking.

SMALLER HOLES                    

With polyurethane foam, we are able to use smaller drill holes than what is required with traditional slabjacking methods. Level Rite Concrete uses small, 5/8″ (the size of a dime $.10 piece) drill holes to complete our concrete raising projects.

Level Rite Concrete : 5/8″ vs. Mudjacking: 1″ – 2″


Polyurethane foam is a light weight material compared to traditional mudjacking slurry (2 pounds of polyurethane foam vs. 100 pounds of mud slurry). Because of the light weight properties of our foam, it won’t burden the underlying soils which are often loose and poorly compacted. Mud slurry is extremely heavy and within a couple years can compact the loose soil base causing resettlement.

Detail of a classic house with green wooden windows and front door - rendering


With foam, fewer holes are drilled in your concrete for a cleaner look compared to mudjacking. Because polyurethane foam enters the soil base as a highly pressurized liquid, we can achieve a large coverage area from each injection site. Our polyurethane foam can flow and expand anywhere from 4 to 15 feet from each injection site. Because of the heavy nature of mud slurry only 1-2 feet of coverage should be expected from each drill hole. As a result 50%-75% more holes are needed to repair sunken concrete with mudjacking.


Lifting settled concrete with polyurethane foam is considered a long-term repair, not a temporary fix. Our lightweight high-density foams won’t lose density like mudjacking slurry. Our hydrophobic foams cure in 15 minutes and will completely maintain their compressive strength. Also, our foams won’t break down or washout with from water, making the Level Rite Concrete process a long-term solution.