We Are Concrete Lifting.
We Are Poly Experts.
We Are USS.
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Concrete is a popular and versatile construction material, but it can sink or crack over time. This is almost always due to the soil conditions underneath the slab. Things like improperly compacted soil, soil erosion, soil shrinkage or expansion (due to moisture changes), and overloading can cause concrete to sink or tilt.
While the industry generally calls this specialized trade “concrete leveling,” our team typically refers to it as “concrete lifting.” This is because we lift the concrete into place to its optimal level rather than forcing it to be perfectly flat. If a slab is completely level, it can collect water and cause future drainage issues.
Our advanced polyurethane foam injection process is a clean and highly effective method for restoring structural support to compromised slabs. Here is how the process works:

Our team carefully identifies the optimal injection locations before drilling small, nickel-sized holes through the affected concrete slab. This process is designed to minimize surface disruption and help preserve the visual appearance of the surrounding area.

We inject a proprietary, high-density, two-part polyurethane foam beneath the surface through these strategic entry points. This specialized material is engineered specifically to withstand changing environmental conditions and daily traffic.

As the liquid foam spreads beneath the slab, it rapidly reacts, forming a rigid structure. This expansion helps fill underground voids, compacts the loose surrounding soil, and lifts the concrete slab into place to an optimal level.

Once the lifting process is complete, the injection ports are removed, and the small drill holes are carefully patched with a durable compound.

Unlike outdated methods or full concrete replacements that require days to dry, this eco-friendly polyurethane material cures in minutes. This allows you to walk on the strengthened surface almost immediately and drive on it within 30 minutes after our team finishes the job.
At USS, we aim to make your concrete leveling repair a success. That is why we guarantee our work with a no-hassle, 5-year warranty on all Poly repairs.
Sinking slabs can occur anywhere on your property where soil conditions deteriorate. Our poly foam injection system is highly versatile and can lift concrete surfaces across your entire residential property.
Common residential areas that benefit from our concrete leveling expertise include:
It is important to remember that while this process is excellent for lifting displaced slabs, crumbling concrete cannot be repaired or lifted using this method.
When looking for professional concrete leveling companies, homeowners want to know the expected concrete leveling cost. The total investment for your project can range depending on several distinct variables. These factors include the overall size and thickness of the displaced slabs, the total volume of polyurethane foam required to fill the underground voids, and the accessibility of the site.
Because every property faces unique soil conditions, we provide an upfront, thorough inspection to determine the exact root cause of your sinking surfaces. We will walk you through the required steps and provide any guidance needed to make an informed decision. To help make your structural investments seamless, we offer flexible payment options to fit your budget.
Concrete repair does not have to disrupt your life. In fact, concrete leveling is a convenient concrete repair alternative to the expensive and disruptive process of removing existing slabs and re-pouring new ones.
Choosing lifting over a full replacement saves you time and money, as it is a minimally invasive alternative that avoids extensive yard upheaval or messy excavation. Rather than waiting days for a brand-new concrete pour to cure, our process lets you enjoy more stable, usable surfaces in a fraction of the time.
Explore United Structural Systems’ comprehensive services online or contact us to schedule your professional inspection today!

Signs you need concrete repair services include visible cracks, holes, or chips in your concrete surfaces. If the concrete is sinking or uneven, or if water is pooling in certain areas, it may also indicate damage. Stains, discoloration, or crumbling edges are other signs that the concrete is deteriorating. These issues can worsen over time, so it's important to get repairs as soon as you notice them to prevent further damage.
When concrete is not leveled correctly, it can cause uneven surfaces that may lead to tripping hazards or difficulty walking or driving on it. Water can also pool in low spots, which can damage the concrete over time and create issues with drainage. Uneven concrete can also affect the stability of structures built on it, potentially leading to further damage or even structural failure. It's important to fix improperly leveled concrete to avoid these risks and ensure safety and durability.
In Nashville, our concrete leveling and repair experts can leverage PolyLift to restore many types of surfaces, including:
When assessing the costs associated with concrete leveling, it is important to understand that repairing your concrete will almost always cost less than replacing it. The longer you leave concrete damage unaddressed, the worse it is likely to get, potentially making a costly replacement the only option. Concrete leveling tends to cost half as much as an outright replacement and avoids supplementary costs like new landscaping.
Our estimates for concrete leveling and repair are on a cost-per-square-foot basis, so the total cost for your repair will be largely dependent upon the size of the area and slab in question. The costs can also vary slightly based on the amount of foam needed and the length of the job. The good news is that these factors rarely have a significant effect on the price, and one of our technicians is happy to give you a free estimate.
Concrete leveling can improve both the safety and aesthetic value of your home. However, we understand that taking immediate action to prevent further damage is not economically achievable for some. We want you to be proactive in making home repairs, including concrete leveling, so that you can avoid higher expenses down the road. That is why we provide concrete repair financing and flexible payment options to our clients.
In addition to offering financing plans and accepting all major credit cards (as well as personal checks), we do not typically ask for payment until the foundation repair job is done right and you are fully satisfied.
Our customer reviews speak for themselves.