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Sinking Concrete Slab

Concrete slabs are what hold up most concrete structures on your property. Driveways, patios, porches, and pool decks are all types of concrete slabs that can sink under certain conditions. 

No matter where a sinking concrete slab is, it signals a larger issue at hand. Eventually, the same issues that are causing a concrete structure to sink could expand to your home’s foundation and lead to even more damage. 

Our team is made up of homeowners, so we understand the desire to keep your most important assets safe. We provide an innovative approach to concrete lifting—one that is built to last. 

After reading this page, you’ll understand what causes concrete to sink in the first place and what you can do to stop the process.  

What Is a Sinking Concrete Slab? 

A sinking concrete slab is exactly what it sounds like: when a concrete surface starts to dip into the ground unevenly. Unfortunately, this issue hurts your property’s curb appeal and will likely create tripping hazards. 

Sinking concrete slabs appear in a number of concrete structures. This is where it most commonly appears: 

Moreover, sinking slabs tend to cause further issues for concrete like: 

Identifying and addressing sinking concrete slabs as early as possible will help mitigate the damage to your property and your home’s curb appeal. Sinking slabs are easy to identify, so don’t hesitate to contact our team if you notice one. 

What Causes a Sinking Concrete Slab? 

Concrete damage of any kind usually stems from environmental conditions, although some damage appears because of construction errors.  

Either way, the reasons why concrete damage occurs are mostly out of your control. Here are the most common reasons a sinking concrete slab shows up: 

  • Settling Soil: With passing time, soil beneath the slab compresses and shifts, leading to sinking. Improperly compacted dirt and dry spells only exacerbate this. 
  • Eroding Soil: Issues like water drainage, soil movement, or leaks erode the supporting soil, making it too weak to support concrete structures. 
  • High Precipitation: Prolonged exposure to moisture from rain, snow, or floods causes soil expansion, destabilizing the slab. 
  • Poor Drainage: Flawed drainage setups, including gutters, enable water accumulation, intensifying soil issues. 
  • Tree Roots: Expanding tree roots displace the surrounding earth, creating voids that induce slab sinking. 
  • Freeze-thaw Cycles: Repeated ground freezing and melting strains the earth beneath slabs. 
  • Installation Problems: Initial construction errors such as poor concrete mixing or faulty curing can result in slabs sinking over time. 

It’s imperative to promptly tackle these root causes to avert further harm to your home’s base. 

Can You Fix a Sinking Concrete Slab? 

Absolutely! With modern advancements in concrete repair, lifting a sinking concrete slab has never been easier. But keep in mind, DIY repairs won’t give you the best results because they don’t actually address the root causes behind sinking concrete. 

Working with a professional repair company raises your chances of success significantly. Basement Authority of West Virginia uses a powerful method to repair sinking slabs called PolyRenewal™. 

This cutting-edge solution utilizes polyurethane foam to elevate sinking concrete slabs. Despite its lightweight design, PolyRenewal™ starts supporting concrete just 15 minutes after curing! 

How to Fix a Sinking Concrete Slab 

Basement Authority of West Virginia has a leading repair process when it comes to repairing a sinking concrete slab. Here’s what you can expect when you work with us: 

  • Thorough inspection of affected concrete areas. 
  • Drill penny-sized holes into the damaged concrete. 
  • Place polyurethane injection ports into these holes. 
  • Prepare our exclusive polyurethane foam. 
  • Inject PolyRenewal™ beneath the sunken slab. 
  • Foam fills voids in the ground and expands, strengthening weak soil and lifting the slab. 
  • Let the foam cure to a solid state (usually 15 minutes). 
  • Detach the injection ports. 
  • Seal and smooth the penny-sized holes, making them virtually invisible. 
  • Fill any remaining cracks to deter future issues. 
  • Regularly inspect and provide maintenance to ensure lasting concrete protection. 

Homeowners have trusted us to repair their concrete since 2003, and there’s a reason why: we have one the best repair methods in the state. We make sure every home has safe, stable concrete for years to come. 

Why Address a Sinking Concrete Slab Now 

Besides the immediate fix that concrete repair brings, it also has some lasting benefits. By lifting a sinking concrete slab, you also get some other advantages: 

  • Increased Safety: Sinking slabs pose slip and fall hazards, especially for the elderly, kids, or those with mobility issues. 
  • Stop Ongoing Movement: Concrete lifting puts an end to continuous concrete sinking. 
  • Prevent Structural Damage: Repairing concrete will stop damage from spreading to your home’s walls and foundation. 
  • Water Issues: Sinking slabs may lead to pooling water outside your home and may increase mold growth. Concrete lifting stops this from happening. 
  • Maintain Appearance and Property Value: Investing in concrete repair helps your home stay healthy and protects its value. 

Basement Authority of West Virginia’s specialized treatments are vital for a thorough resolution. We promise a lasting fix. 

Reach Out to Basement Authority of West Virginia for Dependable Concrete Elevation Solutions 

Prevent minor issues from spiraling into costly setbacks. Should you spot any symptoms of sagging or uneven concrete on your premises, contact us today for a complimentary assessment.  

Our team combines expertise with leading techniques to give your home the safety it deserves. Whatever challenges your home presents, Basement Authority of West Virginia promises unmatched protection, stability, and resilience. 


Disclaimer: By “concrete leveling,” we mean the process by which cracked, uneven concrete is stabilized, and in most cases lifted, by means of our PolyRenewal™ polyurethane foam. Basement Authority of West Virginia does not guarantee that PolyRenewal™ can make your concrete perfectly level.


Our Locations

Charleston, WV

132 Rocky Step Rd.,
Scott Depot, WV 25560