Void Filling Under Concrete in Illinois

Professional polyurethane void filling solutions to stabilize concrete and prevent future settling.

Voids under concrete can cause serious structural damage if left untreated

What Are Voids Under Concrete?

Voids are empty spaces that form under concrete slabs when supporting soil washes away, settles, or shrinks.

How Voids Form

1

Water Infiltration

Water seeps under concrete through cracks or poor drainage

2

Soil Erosion

Supporting soil washes away, creating empty spaces

3

Concrete Settles

Without support, concrete slabs sink into the voids

Polyurethane foam filling voids under concrete

Signs You Have Voids Under Your Concrete

Visual Signs:

  • • Sunken or uneven concrete surfaces
  • • Cracks in concrete slabs
  • • Gaps between concrete sections
  • • Standing water on concrete surfaces

Physical Signs:

  • • Hollow sound when walking on concrete
  • • Concrete that moves or flexes underfoot
  • • Trip hazards from uneven surfaces
  • • Doors or windows that stick

How Polyurethane Void Filling Works

Our advanced polyurethane injection process completely fills voids and provides permanent support.

Precise Injection

Small holes are drilled through the concrete, and polyurethane is injected directly into the voids.

Foam Expansion

The polyurethane expands to completely fill all voids, gaps, and irregular spaces under the concrete.

Permanent Support

The cured foam provides strong, permanent support that won't wash away or compress over time.

Benefits of Polyurethane Void Filling

Lightweight

Won't add excessive weight to soil

Waterproof

Resists water infiltration

Fast Cure

Ready for use in 30 minutes

Long-Lasting

5-8 year warranty

Common Void Filling Applications

We provide void filling solutions for residential, commercial, and industrial concrete surfaces.

Driveways

Fill voids under sunken driveway sections to prevent further settling

Sidewalks

Eliminate trip hazards by filling voids under uneven sidewalk panels

Warehouse Floors

Stabilize industrial floors to support heavy equipment and loads

Pool Decks

Fill voids around pools to prevent water infiltration and settling

Patios

Restore level surfaces for outdoor entertaining and safety

Loading Docks

Maintain level surfaces for safe and efficient loading operations

Garage Floors

Fill voids to prevent cracking and maintain structural integrity

Concrete Steps

Stabilize steps to prevent settling and ensure safety

Don't Let Voids Compromise Your Concrete

Contact Pete's Poly Concrete Lifting today for professional void filling that provides permanent support.