Sinking Concrete Slab

The stability of concrete slabs is pivotal to maintaining your home’s structural soundness. However, sinking concrete in areas such as your driveway, walkway, porch, or within your home poses a safety risk and indicates underlying issues that could jeopardize your home’s foundation.
At JES Foundation Repair, we understand the challenges homeowners face when dealing with sinking concrete slabs, whether they are outdoors or indoors. Our specialization lies in offering comprehensive, long-lasting remedies tailored to address and resolve these problems, elevating both the safety and aesthetics of your home.
On this page, we explore the causes of sinking concrete slabs, their repercussions for your home, and the advantages of JES Foundation Repair’s exclusive concrete lifting solutions and supplementary repair services.
What Is a Sinking Concrete Slab?
Sinking concrete occurs when a concrete surface gradually descends unevenly, resulting in visible depressions or fractures. This issue diminishes your property’s visual appeal and creates hazards, including the risk of tripping and falling.
The problem of sinking concrete slabs is prevalent in various concrete structures, including:
Sinking concrete can also exhibit other damage, such as:
Early identification and repair of a concrete slab that is sinking prevents more extensive damage, mitigates risks, and restores the functionality and beauty of the space. That’s why contacting local concrete repair professionals like JES Foundation Repair right away is crucial when you notice concrete damage.
What Causes Sinking Concrete?
There are several common causes of a sinking concrete slab, including:

- Soil Settlement or Erosion: Concrete can sink when soil beneath it compacts over time or washes away due to poor drainage, leaks, or shifting ground.
- Excessive Precipitation: Saturated soil from rain, flooding, or snowmelt expands and moves, leading to slab instability. Long-term moisture causes erosion and weakens the dirt.
- Poor Drainage: Damaged drainage systems, such as gutters and downspouts, allow excess water to collect on or near the concrete, which can exacerbate underlying soil problems.
- Tree Roots: As tree roots grow, they displace the surrounding soil and can lift and crack slabs. As the roots decompose, they leave voids in the soil, leading to sinking slabs.
- Freeze-thaw Cycles: Repeated freezing and thawing of the ground cause expansion and contraction, which stress and shift the soil under slabs.
- Installation Problems: Mistakes during site prep, base compaction, slab curing, and pouring can lead to later sinking and cracking of concrete.
Addressing these underlying causes promptly is crucial in preventing further structural damage to your home’s foundation.
Is It Possible to Repair Sinking Concrete?
Yes, repairing a sinking concrete slab is both feasible and crucial. Addressing and resolving the issue promptly is essential, as severe damage may limit repair options. The key to a long-term solution lies in accurately identifying and remedying the root cause of the problem. Temporary solutions such as mudjacking or filling the gap beneath the slab with gravel may lead to further sinking.
A holistic approach is essential for lasting repair and protection. Employing a comprehensive solution that tackles all underlying causes, using advanced techniques and products, ensures optimal results and prevents future incidents.
JES Foundation Repair uses SettleStop™ PolyRenewal™, a state-of-the-art polyurethane injection system designed to lift sinking concrete. In foundational issues, we use other techniques, such as foundation piers, including slab-specific piers, to permanently stabilize and potentially elevate your settling foundation.
Every home is unique, with specific repair needs. Contact our team today to identify the most suitable repair method for your home.
How to Fix a Sinking Concrete Slab
When utilizing PolyRenewal™ to lift sunken concrete slabs, JES Foundation Repair follows a precise process:

- Inspect problematic concrete slabs.
- Drill penny-sized holes into the affected concrete.
- Affix installation ports in the holes.
- Mix proprietary closed-cell polyurethane foam.
- Inject foam under the concrete slab.
- Allow foam to fill voids, effectively lifting the concrete.
- Let the foam cure (approximately 15 minutes).
- Remove injection ports.
- Fill and smooth the drilled holes, and seal cracks and joints.
- Regularly inspect and maintain the concrete slabs.
JES Foundation Repair’s proprietary products are customized to address your specific issues more effectively than generic solutions, providing unparalleled quality and durability.
Why Address a Sinking Concrete Slab Now
It’s crucial to have sinking concrete professionally inspected and repaired for several reasons:
- Safety: Uneven, sunken slabs present a tripping and falling risk for homeowners. This is especially dangerous for seniors, small children, and anyone with mobility issues.
- Ongoing Movement: Slabs will continue to shift and sink lower without proper repairs. The problem worsens over time.
- Structural Damage: The same soil problems that cause sinking slabs can damage walls and foundations if left unaddressed.
- Water Issues: Sinking concrete allows water to pool and seep under foundations, leading to moisture damage, mold, and cracks. Exterior issues related to pooling water include poor drainage, flooding, and pest infestations.
- Appearance and Property Value: Cracked, uneven slabs are unattractive and detract from curb appeal. They also deter potential buyers.
JES Foundation Repair and our unique solutions play a crucial role in effectively addressing these issues. Our specialized products deliver long-lasting, exceptional outcomes that set them apart from readily available alternatives.
Contact JES Foundation Repair for Reliable Concrete Lifting Solutions

Don’t wait until small problems turn into expensive repairs. If you notice any signs of sinking, settling, or irregular concrete slabs on your property, don’t hesitate to get in touch with JES Foundation Repair. We’re ready to schedule your free inspection and estimate. Our team of well-trained specialists employs advanced diagnostics and exclusive products to raise concrete and prevent future sinking and cracking.
With the PolyRenewal™ foam injection system, we can swiftly and precisely raise sinking concrete. Additionally, our comprehensive foundation repair options address associated foundation issues, providing lasting protection. Regardless of your home’s specific needs, JES Foundation Repair offers top-notch solutions to guarantee its safety, durability, and stability.
Sinking Concrete Slab FAQs
The cost of repairing a sunken concrete slab can vary based on factors such as the slab’s size, the extent of damage, and the repair methods chosen. JES Foundation Repair offers complimentary inspections, obligation-free estimates, transparent pricing, and a range of payment and financing options. Contact us today to schedule your free inspection and cost repair estimate.
With JES Foundation Repair’s PolyRenewal™ foam injection process, we can often lift sunken slabs in as little as 15 minutes. However, the total project duration depends on factors like the slab’s size and the extent of damage. During your free inspection, we will provide you with an estimate of the timeline for your specific project.
Absolutely, our solutions are engineered to endure various environmental challenges, including heavy rain, flooding, snow, and droughts. Our PolyRenewal™ polyurethane foam is designed to never wash away or erode from beneath the concrete, ensuring long-lasting support and stability. Don’t hesitate to reach out to JES Foundation Repair for more information and to schedule a complimentary inspection.
*Disclaimer: “Concrete leveling” means the process by which cracked, uneven concrete is stabilized, and in many cases lifted, by means of PolyRenewal™ polyurethane foam. JES Foundation Repair does not guarantee that PolyRenewal™ can make your concrete perfectly level.
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