When concrete starts to sink, crack, or become uneven, homeowners have several options for getting it level again. Two of the most common are mudjacking and foam concrete leveling.
Both methods can raise settled concrete, but they work differently. So, which option is better for your driveway, sidewalk, patio, or other concrete surface?
What Is Foam Concrete Leveling?
Foam concrete leveling uses expanding polyurethane foam to lift and stabilize sunken concrete. Small holes are drilled into the slab, and the foam is injected underneath.
As the foam expands, it fills voids beneath the concrete and gently lifts the slab back into place. Baird Foundation Repair uses PolyLevel® to provide lightweight, effective concrete leveling.
Mudjacking vs. Foam Concrete Leveling
While both methods are designed to lift concrete, there are some key differences:
| Foam Concrete Leveling | Mudjacking | |
|---|---|---|
| Material | Lightweight polyurethane foam | Heavy cement-based slurry |
| Injection Holes | Smaller holes | Larger holes |
| Curing | Sets quickly | Requires more curing time |
| Voids | Expands to fill voids | Fills spaces with slurry |
| Disruption | Less material and mess | More material and cleanup |
| Weight Added | Lightweight | Adds significant weight |
Which Is Better?
For many concrete leveling projects, foam concrete leveling offers advantages over traditional mudjacking.
Foam concrete leveling is a good choice if you want:
- A lightweight solution that does not add significant weight to the soil
- Smaller injection holes for a less noticeable repair
- Fast installation with minimal downtime
- Void filling beneath settled concrete
- Long-term support for your concrete slab
Mudjacking can still lift concrete, but the heavier slurry can add additional weight to soil that may already be unstable. In areas like Texas, where changing moisture levels can cause soil to expand and shrink, choosing a lightweight leveling solution can be especially beneficial.
Why Does Concrete Sink?
The cause of settlement is often below the concrete. Soil can shrink during dry conditions or expand after absorbing moisture. Drainage problems, erosion, and plumbing leaks can also wash away or disturb the soil supporting a slab. When that support changes, concrete can begin to settle.
That is why lifting the concrete is only part of the solution. The repair should also provide support beneath the slab.
Is Foam Concrete Leveling Right for Your Concrete?
If you have a sinking driveway, uneven sidewalk, patio, or pool deck, Baird Foundation Repair can identify what is causing the settlement and recommend the right solution for your home. Not sure which concrete leveling method is right for you? Schedule a professional inspection to find out how to restore your concrete and prevent the problem from getting worse.





