Interior Floor Leveling

Uneven interior concrete floors create safety risks, affect equipment movement, and disrupt daily operations. Settled slabs inside buildings can lead to cracks, drainage problems, and uneven transitions between spaces.

Interior floor leveling raises sunken concrete slabs without removing or replacing the floor. Foamjection uses polyurethane concrete lifting to restore support beneath the slab while minimizing disruption inside the facility.

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Why Interior Floors Sink

Interior floors sink when the soil beneath the slab loses strength. Common causes include:

  • Soil erosion below the building
  • Poor drainage beneath the slab
  • Backfilled soil settling over time
  • Long-term soil movement
  • Voids forming under the concrete

As support weakens, interior floors settle unevenly and continue to shift.


Signs Your Interior Floor Needs Leveling

You may need interior floor leveling if you notice:

  • Uneven or sloped floor surfaces
  • Cracks forming in the slab
  • Equipment or shelving no longer sitting level
  • Water pooling on the floor
  • Gaps along walls or between slab sections

Addressing these issues early helps improve safety and maintain smooth operations.


If surrounding concrete has also settled, factory floor levelingwarehouse floor leveling, or loading docks & ramps may also be needed to stabilize connected surfaces and maintain consistent elevation throughout the facility.

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With Foamjection, you get:
A solution that costs 50–70% less  A Process completed in hours, not days  A precise, durable slab lifting solution Eco-friendly materials Local certified expertise

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Our Fix: Polyurethane Interior Floor Leveling

Foamjection levels interior floors by injecting high-density polyurethane foam beneath the slab. The foam expands to fill voids, lift the concrete, and restore firm support below the surface.

  • Small access holes are drilled
  • Foam is injected beneath the interior floor
  • The slab is lifted and stabilized
  • Holes are patched after lifting

Most interior floor leveling projects are completed efficiently, and many surfaces are ready for use the same day.

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Why Property Owners Choose Interior Floor Leveling

Property owners choose interior floor leveling because it corrects uneven slabs without demolition or extended downtime. Lifting restores safe walking and working surfaces while keeping existing concrete in place.

  • Costs less than replacement
  • No tear-out or heavy equipment
  • Minimal disruption to operations
  • Fast completion time
  • Long-term support under the slab

For interior floors that are intact but uneven, leveling is often the most practical solution.

The Benefits of Foam Interior Floor Leveling

  • Reduced disruption inside the building
  • Improved safety and floor performance
  • Lightweight foam that does not overload soil
  • Water-resistant material
  • Controlled, precise lifting
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Interior Floor Leveling Questions

What causes interior floors to become uneven?

Interior floors become uneven due to soil erosion, poor drainage, soil movement, and settling beneath the slab.

In many cases, yes. Leveling costs less, takes less time, and avoids removing existing concrete.

Most projects are completed in a short time frame, depending on slab size and conditions.

Yes. Polyurethane foam is designed to support equipment, shelving, and daily use.

In many cases, work can be scheduled or phased to limit disruption.

The holes are small and patched after lifting.

Yes. Leveling restores proper slope so water drains correctly.

You can request a free estimate by visiting our Contact Us page and submitting the form. Our team will review your request and explain the next steps.

Foamjection provides commercial concrete lifting in multiple states across the U.S., including Texas, Colorado, Florida, Georgia, Illinois, Wisconsin, and surrounding areas. To see the full list of states and service coverage, visit our Service Area page.

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Serving 30+ States and Expanding

Foamjection helps homeowners with expert foam concrete leveling throughout.

America's #1 Concrete Lifting Company

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