Void Filling
Stop Soil Washout Before It Becomes a Bigger Problem
Voids under concrete form when soil washes away, shrinks, or shifts over time. These empty spaces leave your slabs unsupported, which eventually causes cracking, sinking, and uneven surfaces. Even if your concrete hasn’t dropped yet, unfilled voids mean problems are on the way.
At Henning Concrete Lifting, we use polyurethane foam injection to fill voids, stabilize the soil, and support your concrete. This process protects your slabs from future settling and gives you a long-lasting repair without the cost of replacement.
Why Do Voids Form Under Concrete?
Concrete is only as strong as the soil beneath it. When that soil fails, empty spaces develop and weaken the slab. The most common causes of voids include:
- Soil erosion from rain, drainage, or plumbing leaks
- Poor compaction during the original construction
- Tree roots disturbing or drying out soil
- Soil shrinkage during hot weather followed by settling when it rains
- Heavy loads stressing weak or loose soil
If voids aren’t filled, your concrete will eventually sink and crack.
Voids under concrete can lead to sinking Driveways, Garage Floors, or Patios. Our foam injection fills empty spaces to prevent future damage and stabilize your slabs.
