A Proven Solution for Sunken or Uneven Basement Slabs

At Anchored Walls, we use advanced polyurethane injection techniques to lift and re-level basement floors quickly and cleanly. It’s a proven, cost-effective alternative to full slab replacement, engineered to deliver lasting results with minimal disruption to your home.

Why Basement Floors Sink

Over time, the soil beneath your basement can shift, settle, or erode—especially in areas with expansive clay, poor compaction, or excess moisture. When that happens, the concrete slab above can begin to crack or dip in isolated sections.

Common causes include:

• Poorly compacted soil at the time of construction
  
• Soil washout due to plumbing leaks or groundwater
  
• Shrink-swell cycles from moisture changes
  
• Structural settlement in areas with weak subgrade
  

In most cases, the concrete itself hasn’t failed—the problem lies beneath it.

Where Basement Floor Leveling Is Most Common

• Finished and unfinished basements
  
• Storage or utility rooms
  
• Laundry areas
  
• Slabs with uneven tiles, dips, or visible cracking
  
• Any location with sinking or sloping basement surfaces
  

If your basement floor has settled even slightly, early intervention can prevent further damage and avoid larger structural concerns.

How Our Basement Floor Leveling System Works

We use a technique known as polyurethane foam injection, or polyjacking, to raise and support basement slabs from below. This system is strong, stable, and designed for long-term performance in interior environments.

Here’s how the process works:

1. 1. Inspection
   A trained specialist inspects your floor and identifies the areas of settlement or voids below the slab.
   
2. 2. Precision Drilling
   Small holes are drilled through the affected slab in strategic locations.
   
3. 3. Foam Injection
   A high-density polyurethane foam is injected under the slab. As it expands, the foam fills any voids and gently lifts the concrete back to its proper elevation.
   
4. 4. Sealing and Cleanup
   Once the slab is level, the holes are patched, and the floor is ready for light use within hours.
   

Benefits of Foam-Based Leveling

• Quick Installation – Most projects are completed in a single day.
  
• Minimal Disruption – No demolition or heavy equipment required.
  
• Clean and Precise – Interior work is contained and low-impact.
  
• Long-Lasting Results – Foam won't shrink or degrade over time.
  
• Avoids Full Replacement – Much less costly than tearing out and pouring new concrete.
  

Schedule an Inspection

Basement floor issues don’t correct themselves, and the longer they’re left untreated, the more they can affect your home’s safety and resale value. Anchored Walls provides lasting basement floor leveling solutions backed by decades of structural repair experience.

Contact us today to schedule an inspection and find out if polyurethane slab leveling is the right approach for your home.