Patented Braces Our patented bracing system is most often used for raising concrete sidewalks and patios, where access from two opposite sides is available, and in slabs less than 10 feet in width . . . . . WITHOUT DRILLING HOLES in the surface!  Once the concrete slabs are raised and leveled, dry limestone sand is blown in to fill the cavity beneath the raised concrete, providing a dry, consistent base for the concrete to rest on.
	Patented Hydraulics and Pole Jacks This method requires the drilling of holes (1/2" to 1" in diameter) through the surface of the concrete.  This method is often used when we do not have access from two opposite sides or on larger concrete slabs.  Once the holes are drilled, dry limestone sand is pumped with hydraulic pressure beneath the slab to re-establish a proper height.  Once this has been done, we fill the voids, either from the sides or through additional holes in the surface, with dry limestone sand to re-establish a permanent resting pad for the newly raised concrete.  The holes are then filled with a concrete mix to match the existing concrete as closely as possible.
Air Pressure This method is often used on large concrete slabs, such as parking lots and bridge decks, or on floors that are bordered by curbs or foundation walls --- where air can be "captured."  As the concrete slab is raised, the dry limestone sand is pumped in under pressure to fill the air void, reestablishing a more permanent base.  Very few holes are required for this type of repair, and they will not exceed 1/2" to 1" in diameter.  These holes will be filled to match the existing concrete as closely as possible to complete the repair.	Any combination of these various methods may be used to achieve the desired results.