Yes, polyurethane foam can be used to stabilize and lift settled concrete, but its effectiveness depends heavily on the specific nature of the settlement. In our experience with the expansive clay soils common in Centennial, it is important to distinguish between slab jacking and foundation underpinning.

Polyurethane foam injection is a less invasive method typically used for lifting non-structural concrete slabs, such as driveways, patios, or interior floors, that have settled between 1 and 3 inches. It works by injecting lightweight expanding foam to fill voids and lift the concrete back to a precise level.

However, there are critical limitations to consider:

• Structural Support: While foam can lift a slab, it does not address the root cause of soil instability. For foundation walls or heavy structural loads, the load bearing capacity of helical piers or steel push piers is required to provide a permanent solution. These steel systems transfer the home’s weight deep past unstable surface soils to competent strata or bedrock.
• Soil Conditions: In reactive clay soils, foam may be susceptible to moisture degradation over time, whereas steel piers offer long-term reliability for the life of the structure.

Because every property is unique, we recommend a professional site evaluation to determine if foam is appropriate or if deep foundation stabilization is necessary. Project outcomes and timelines may vary based on site conditions, and all estimates are preliminary and subject to change after a full scope review.

Let us help you get your project started by scheduling a site inspection to ensure your home receives the most durable solution.

• Polyurethane Foam vs Steel Piers Foundation Repair: Comparison Guide