Average Concrete Floor Leveling Costs / Average Mudjacking Costs The average cost to level concrete will depend on two things: how far it needs to be raised and the accessibility of the spot in question. The concrete leveling machine is cumbersome and bulky. Therefore, it is difficult to get it close to a confined area.You can level an existing concrete floor with a leveling layer of new concrete, but you must prepare the old concrete floor first. Neglecting to prepare the old surface will prevent the new concrete from adhering correctly, resulting in a weak bond between the two layers. · - cabinet installer set cabinets on concrete subfloor and shimmed only to level rather than to raise to potential new floor level. – floor tile installer most likely did not level the floor by grinding 1/8 in high areas and filling 1/8 in low areas. He simply filled low areas. Which could raise the floor substantially.Tackling a cracked and uneven slab of concrete can seem daunting, but it doesn’t have to be. Repairing and leveling concrete is a pretty straightforward process and requires just a few tools.If you plan on leveling a concrete floor, you can do so with relative ease by using a leveling compound. It spreads across uneven slabs, filling in low spots as it creates a new, level surface.shop mapei self leveler plus 50-lb indoor self-leveling underlayment in the surface preparation section of Lowes.comCovalt Floor Leveling, Inc., a concrete repair and subfloor leveling contractor in Orange County, Calif., recently completed a 4,000-square-foot concrete repair and resurfacing project in only two.This Old House general contractor tom silva shows how to resurface an uneven concrete slab. (See below for a shopping list and tools.) SUBSCRIBE to This Old.Apply floor leveling compound primer to the floor with a paint roller. Some brands are used as-is, while others need to be mixed with water before application.. Level high spots with a concrete.When used as a floor leveling solution where a floor covering will be installed, most floor covering adhesives that are suitable for concrete can be used with this product. Either route, SC650-MC is.