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Sinking Concrete Slabs

For homeowners, the integrity of your property is of utmost importance. A key component of this is the strength and stability of concrete slabs. While concrete is durable, it’s not without its vulnerabilities. 

A sinking concrete slab, whether on your driveway, sidewalk, or inside your home, is more than just an eyesore. It could be a sign of underlying soil issues that threaten the very foundation of your home. 

At Foundation Systems of Michigan, we understand your concerns when it comes to sinking concrete slabs. That’s why we’ve crafted specialized solutions to address these issues, prioritizing both your home’s safety and beauty. 

Here, you’ll learn about the causes of sinking concrete slabs, their effects on your home, and how our expert concrete lifting methods can be the solution you need.  

What Is a Sinking Concrete Slab? 

When concrete starts lowering unevenly, resulting in visible dips or cracks, you’re witnessing a sinking slab. This not only mars the visual appeal of your property but creates safety threats, particularly tripping hazards. 

These sinking issues can manifest in various areas, including: 

Sinking slabs might also show signs of: 

It’s essential to catch and address these symptoms early. This preemptive approach can stave off more severe damage and restore the area’s original charm. Whenever you spot these issues, remember to contact an expert concrete repair team like Foundation Systems of Michigan. 

What Causes a Sinking Concrete Slab? 

Multiple factors can lead to sinking slabs: 

  • Settling Soil: Soil under the slab can naturally settle over time, especially if not properly compacted, leading to sinking during dry spells. 
  • Eroding Soil: Improper drainage or shifting can wash away soil, leaving the concrete unsupported. 
  • Excessive Precipitation: Continuous wetness from rain or snow causes soil expansion and movement, destabilizing the slab. 
  • Poor Drainage: Faulty gutters and downspouts facilitate water accumulation, exacerbating soil issues. 
  • Tree Roots: Growing tree roots can displace soil, leading to slab upheaval. Decaying roots can cause sinking. 
  • Freeze-thaw Cycles: Regular freezing and thawing can stress the soil underneath. 
  • Installation Errors: Poor slab installation techniques can pave the way for future issues. 

Addressing these root causes quickly is crucial to safeguard your home’s foundation. 

Can You Fix a Sinking Concrete Slab? 

Yes! And it’s essential to act promptly. Identifying and remedying the problem early offers more solutions. 

A comprehensive approach considering drainage and repair offers the most effective results. Foundation Systems of Michigan uses SettleStop™ PolyRenewal™, a cutting-edge polyurethane injection system for lifting exterior sunken slabs. For foundational issues, we have other techniques, such as slab piers, designed to stabilize your foundation permanently. 

No two homes are alike, and each demands a unique solution. Contact our team to pinpoint the best remedy for your property. 

How to Fix a Sinking Concrete Slab 

To lift sunken slabs, Foundation Systems of Michigan uses a particular procedure honed with years of experience: 

  • 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.  

Our specialized products are tailor-made for your specific issues, promising unmatched efficacy and durability. 

Why Address a Sinking Concrete Slab Now 

Repairing sinking slabs immediately is crucial because of: 

  • Safety Concerns: Sinking slabs are trip hazards. 
  • Continuous Movement: Without intervention, slabs will keep sinking. 
  • Structural Implications: Ignored soil issues can damage walls and foundations. 
  • Moisture Problems: Sinking promotes water pooling, leading to further damage. 
  • Aesthetic and Value: Unsightly slabs decrease your property’s appeal and value. 

Foundation Systems of Michigan offers unmatched solutions that address these concerns with lasting results. 

Contact Foundation Systems of Michigan for Reliable Concrete Lifting Solutions 

Don’t let minor issues snowball into substantial expenses. If you notice sinking or uneven slabs, get in touch with Foundation Systems of Michigan.  

Our experts use advanced diagnostics and our proprietary products to guarantee safety, stability, and longevity for your home. 

Contact us today to schedule your free inspection


Costs vary based on the damage scale and the chosen repair method. Foundation Systems of Michigan provides free inspections, transparent pricing, and financing alternatives.  

Using PolyRenewal™, slabs are ready to use after 15 minutes. The overall project duration depends on the slab’s size and damage extent. We offer a timeline during your free inspection.

It’s advisable to address sinking concrete as soon as it’s noticed. Delays can result in more significant damage and higher repair costs. 

*Disclaimer: “Concrete leveling” means the process by which cracked, uneven concrete is stabilized, and in many cases lifted, by means of PolyRenewal™ polyurethane foam. Foundation Systems of Michigan does not guarantee that PolyRenewal™ can make your concrete perfectly level.

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