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Sinking Concrete Slab

The structural soundness of a home is of utmost importance, and the stability of concrete slabs plays a pivotal role in upholding it. While concrete is a resilient building material widely used for various structures on properties, it is not impervious to harm. 

The sinking of a concrete slab in areas such as your driveway, walkway, porch, or within your residence is more than just a visual blemish. It poses a safety risk and serves as an indicator of underlying soil issues that, if neglected, could jeopardize the foundation of your home. 

At JES Foundation Repair, we understand the challenges homeowners encounter when confronted with sinking concrete slabs, whether they are outdoors or indoors. Our specialization lies in offering comprehensive and long-lasting remedies tailored to tackle and rectify these problems, elevating both the safety and aesthetics of your home. 

On this page, we delve into the causes behind sinking concrete slabs, their repercussions on your home, and the advantages you can enjoy from JES Foundation Repair’s exclusive concrete lifting solutions and supplementary repair services. 

What Is a Sinking Concrete Slab? 

A sinking concrete slab happens when a concrete surface starts to gradually descend unevenly, resulting in visible depressions or fractures. This issue not only diminishes the visual appeal of your property but also presents significant safety concerns due to the potential for tripping hazards. 

The problem of sinking concrete slabs is prevalent in various concrete structures, including: 

Sinking concrete slabs can also exhibit other damage, such as: 

Early identification and handling of a sinking slab will prevent more extensive damage, mitigate risks, and restore 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 a Sinking Concrete Slab? 

There are several common causes of a sinking concrete slab: 

  • Settling Soil: Over time, the soil underneath the slab naturally compacts and consolidates, causing the concrete above it to sink. This often happens when fill dirt is used and not properly compacted, and results during periods of drought. 
  • Eroding Soil: Water drainage issues, leaks, or shifting soil can erode and wash away dirt under the concrete, leaving it without a stable base and causing it to sink. 
  • Excessive Precipitation: Saturated soil from rain, flooding, or snowmelt expands and moves, causing instability in the slab. Long-term moisture causes erosion and weakens the dirt. 
  • Poor Drainage: Damaged drainage systems like gutters and downspouts allow excess water to collect on or near the concrete, aiding in 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 causes expansion and contraction, which stresses and shifts 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 a Sinking Concrete Slab? 

Yes, repairing a sinking concrete slab is both feasible and crucial. Addressing and rectifying the issue promptly is essential, as severe damage may limit the available repair options. 

 The key to a long-term solution lies in accurately identifying and remedying the root cause of the problem. Temporary solutions like mudjacking or filling the gap beneath the slab with gravel might result in 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 employs the cutting-edge SettleStop™ PolyRenewal™, a state-of-the-art polyurethane injection system designed to lift sunken exterior concrete slabs. 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. 
  • Verify the need for PolyRenewal™ or other repairs. 
  • 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 the void under the slab, effectively lifting the concrete. 
  • Let the foam cure (approximately 15 minutes). 
  • Remove injection ports. 
  • Fill and smooth the drilled holes. 
  • Seal cracks and joints to prevent future damage. 
  • Regularly inspect and maintain the concrete slabs for lasting protection. 

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 a sinking concrete slab 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 slabs allow water to pool and seep under foundations, leading to moisture damage, mold, and cracks. Exterior issues with pooling water include poor drainage, flooding, and attracting pests. 
  • Appearance and Property Value: Cracked, uneven slabs look unattractive and bring down 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 provide long-lasting, exceptional outcomes that distinguish themselves 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 indications 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 complimentary inspection and estimate for you. 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 elevate sunken slabs. Furthermore, our comprehensive foundation repair options tackle associated foundation problems, providing enduring protection. Regardless of your home’s specific needs, JES Foundation Repair offers top-notch solutions to guarantee its safety, durability, and stability. 


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.

JES Foundation Repair service area map of the Mid-Atlantic region.

Our Locations


8361 Town Center Ct
Nottingham, MD 21236


311 Central Rd.
Suite 2-02
Fredericksburg, VA 22401

Hampton Roads & NE NC

2569 Quality Ct
Virginia Beach, VA 23454

Northern VA & DC

7940 Gainsford Ct.
Bristow, VA 20136


309 Quarles Rd
Ashland, VA 23005

Southwest Virginia / Roanoke

2033 Cook Dr.
Salem, VA 24153

Western Virginia

456 Old Courthouse Rd
Appomattox, VA 24522


45 W Boscawen St,
Winchester, VA 22601