We are the leaders in concrete leveling in NJ

The cause of uneven unlevel concrete surfaces can vary. Prior to seeking out a solution, a professional assessment to determine cause and establish a correct method of repair is recommnded.

While some concrete surfaces are poured intentionally with pitch for proper surface drainage, such as basement floors that are pitched toward a sump pump, along with outdoor surfaces such as patios, the main cause of uneven concrete is typically due to concrete settlement.

Let’s address the two main causes along with proper methods of repair.

Sinking Concrete

  • When concrete has been installed on loose soils in and around homes and buildings during initial construction, concrete slabs will sink as these loose soils settle and reconsolidate. This failure is commonly seen with concrete patios, pool decks, garage floors and inside floor slabs.

    A sinking concrete failure can be corrected with a process referred as concrete leveling or Mudjacking. Holes that are typically 1” in size are drilled into the concrete slab to allow for injection of a Portland cement grout. As the grout is injected, the concrete slab will float up, returning to its original height and position. The access holes are then patched, allowing the concrete to be returned into service almost immediately.

Uneven or Unlevel Concrete surfaces

  • The first step is determining which self-leveling product is correct for the application. There are two main types of products called underlays and overlays. They are gypsum based or Portland based products and it is necessary to consider floor moisture and wear surface when making the selection. Proper floor preparation is extremely important. The surface must be solid and sound and free of any bond breakers such as glues or paints.

    While floor levelers are an option to level concrete surface issues, if you are experiencing a settlement issue with your indoor or out door concrete, click the contact us button below for a professional concrete raising evaluation.


Concrete leveling is a process that involves raising a concrete surface that has become uneven due to settling, erosion, or other factors. The process can be done using a variety of techniques, but the goal is always to bring the surface back to its original level.
There are a number of factors that can cause concrete to settle and become uneven, including poor soil compaction practices during initial construction, along with improper drainage. As these disturbed soils reach a point of reconsolidation and settle, the concrete resting on these soils will also begin to settle and become uneven.
The most obvious sign that your concrete needs leveling is if you notice that it has become uneven or sunken in certain areas. You may also notice cracks or gaps between the slabs of concrete, or that it is not level with adjacent surfaces like driveways, sidewalks, or garage floors, or pool copings.
There are two techniques used for concrete leveling, but one of the most common is a process called Mudjacking. The second process is known as polyurethane foam injection. Both processes involve drilling small holes in the surface of the concrete and injecting either a cement grout or petroleum-based, two-part polyurethane foam derived from crude oil into the voids beneath it. While Mudjacking first fills voids to support and raise the concrete, the foam lifts the concrete through expansion.
The time it takes to level concrete can vary depending on the size and complexity of the job, as well as the technique being used. In general, however, most concrete leveling projects can be completed in a matter of hours or a day, depending on the size and scope of the project.
The cost of concrete leveling will depend on a variety of factors, including the size and complexity of the project, the technique being used, or the location and access to the concrete area. The type of material being used is also is a consideration as the chemically made poly foam can cost significantly more. However, in general, concrete leveling is a cost-effective alternative to completely replacing a concrete surface, and can often be done at a fraction of the cost.
While there are DIY kits available for concrete leveling, it is generally not recommended that you attempt to do it yourself. Concrete leveling can be a complex and potentially dangerous process, especially due to the toxicity and flammability of the poly foam product. So it is best left to trained professionals who have the experience and equipment needed to do the job safely and effectively.
Yes, concrete leveling is a permanent solution, as long as the underlying cause such as the settling process is completed and drainage issues have been addressed. If initial construction is recent or drainage has not addressed, then the concrete may continue to settle and become uneven over time. However, by using the right technique and addressing the underlying cause, concrete leveling can provide a long-term solution to uneven or sunken concrete surfaces.
While both methods are used to raise concrete, mud jacking with cement grout offers a compressive strength five times that of poly foam. Mudjacking with cement grout also comes without the flammability, toxicity, recyclability, or added disposal costs upon concrete replacement associated with poly foam. The Mudjacking process has been used successfully to raise everything from sidewalks to concrete highways for over eight years.
Concrete leveling lasts just as long as concrete replacement providing both are done on solid soils that are no longer settling. This is determined with a professional assessment based on time since initial construction along with discovering and correcting any drainage issues. Concrete Chiropractor has jobs that have stood the test of time and are still at their original height since being corrected.
Yes. Most reputable companies will offer a warranty the same as concrete replacement. But beware of companies that offer warranties that are too good to be true. Keep in mind that any warranty is only as good as the company offering it.