Name: Slab Jacker Concrete Slab Lifting And Leveling. Descripton: If your concrete is sinking, there is a very good possibility that the concrete slab was installed on poorly compacted fill dirt. Sub-surface erosion and shrinking soils are also possibilities.Since you are fortunate enough to have Slab Jacker in your area, you should not have to replace the concrete. We can float a slab back to its original position by pumping a mixture of sand, cement, fly ash, and other additives beneath your slab.We simply drill strategically placed holes into the slab. Using a portable pump and flexible hoses we fill these holes with the special mixture. Lifting a slab using this method can often be accomplished in a few hours.Often the cost to perform this service is less than half that of replacing a new slab. Call us today for a free estimate 801-995-8220 Rating of 5.0000 based on 3 reviews.