Sunken & Uneven Concrete Repair in the Flathead Valley

Concrete slabs depend on stable, properly prepared soil for support. When that supporting material shifts, compresses or washes away, empty spaces can develop beneath the concrete. Without consistent support, the slab may begin to settle, tilt or crack.

In northwest Montana, seasonal freeze-thaw cycling is an important factor. Water within the soil freezes and expands, then contracts as temperatures rise. Repeated seasonal movement can contribute to uneven support beneath sidewalks, driveways, patios and other concrete surfaces.

Water drainage is another common contributor. Downspouts, roof runoff, poor grading and soil erosion can gradually remove material beneath a slab, creating voids that allow the concrete to drop.

The important distinction is that a sunken slab does not always mean the concrete itself has failed. When the existing material remains structurally suitable, restoring the support beneath it may provide a practical alternative to replacement.

Polyurethane foam lifting restores support beneath existing concrete by injecting an expanding two-part material through small drilled openings. Once the foam enters the space beneath the slab, it expands to fill voids and applies controlled lifting pressure against the concrete.

Our technician monitors the slab as the material is injected, adjusting the application to bring the affected section toward its intended elevation. The injection openings are then patched with concrete repair material.

Unlike full replacement, this approach preserves the existing slab when it is suitable for repair. It also avoids much of the demolition, hauling and reconstruction associated with removing and pouring new concrete.

When concrete begins to sink, replacement may seem like the obvious answer. However, if the existing slab is still in suitable condition, polyurethane foam lifting can offer a more efficient alternative.

Full replacement involves breaking up the old concrete, hauling away debris, preparing the supporting base, pouring new concrete and allowing sufficient curing time before normal use. Foam lifting works beneath the existing slab and restores support without requiring the same demolition and reconstruction process.

There are situations where replacement remains the better choice. Extensive cracking, severe deterioration, unstable concrete fragments or other structural problems may make lifting unsuitable.

Uneven concrete is a common problem throughout northwest Montana, where seasonal weather and changing soil conditions can affect the support beneath driveways, sidewalks, patios and other slabs.

True North offers polyurethane concrete lifting throughout the Flathead Valley, giving property owners an alternative to full replacement when the existing concrete is suitable for repair.

Our team evaluates the condition of the slab, explains the available options and provides an honest recommendation based on the repair conditions. We understand that not every concrete surface can or should be lifted, and we'll let you know when replacement is the better solution.

As a local family-owned business, we're available to discuss your project directly and provide a free on-site estimate.

Call and talk to a real person from the Flathead Valley. No robots, no call centers, no automated answering. (406) 580-8522.