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Look beneath the visible problem

Void filling and soil stabilization below the surface.

Concrete can lose support even before the height difference becomes obvious. Relevel evaluates settlement, washout and suspected voids, then uses dual-component polyurethane foam where added support is appropriate. Some projects need stabilization without a visible lift; others need both. Understanding what is happening beneath the slab helps determine the right repair and any related drainage concerns.

Washout and an exposed void beneath the edge of a concrete slab.

Signs to look for

Does this sound familiar?

Settlement that keeps returning

Movement after a surface repair can indicate that the support problem remains below.

Washout at the slab edge

Erosion may remove material from beneath concrete and leave unsupported areas.

Hollow or unsupported areas

Visible gaps or a hollow response can justify a closer evaluation, rather than confirming a diagnosis on their own.

Water affecting the base

Drainage or leaking water can contribute to support loss and may need attention alongside stabilization.

Targeted polyurethane injection beneath a concrete slab for void filling and soil stabilization.

How Relevel approaches it

A repair matched to the condition.

Relevel identifies the likely unsupported areas and plans targeted access. The injection is matched to the support needed, with the surface response monitored rather than assuming every stabilization project should raise the slab.

The right fit matters

Repair where it makes sense.

A possible fit

✓ The assessment identifies voids or weakened support.
✓ Targeted access can reach the affected areas.
✓ The project needs support, with or without elevation correction.

Needs a closer assessment

✓ An ongoing water source contributing to washout.
✓ Conditions whose cause or extent needs further investigation.
✓ A structure or slab requiring another repair method.

Your questions, answered

Questions about
void filling & soil stabilization.

A few practical details to help you understand the service and your options.

Can voids be filled without lifting the concrete?

Yes. Some projects call for support beneath a slab without changing its visible elevation. Other projects combine void filling with lifting. Relevel matches the plan to the conditions found.

What can create a void beneath a slab?

Common contributors include erosion, washout, poor soil compaction, leaking water, drainage problems and settlement. The assessment considers the likely cause as well as the empty space.

How is stabilization different from concrete leveling?

Stabilization focuses on restoring support below the surface. Leveling also aims to change a slab’s elevation or alignment. The two can be part of the same project, but they are not identical goals.

Does filling a void remove the need to address drainage?

Not necessarily. If water is contributing to support loss, that source may need attention as part of the overall repair plan. Filling an unsupported area should not be treated as a universal fix for drainage problems.

Free estimate

Let’s look at your
repair options.

Send your project details and a few photos, if you have them. Relevel will help you understand whether repair is the right next step.

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