Fill Underground Voids Before They Cause Damage
in Buffalo

The Hidden Threat Under Your Concrete

You can’t see them, but voids beneath your concrete can lead to sudden, expensive damage. These underground cavities grow over time until the concrete above them cracks, settles, or collapses entirely.

How Voids Form

Voids develop through several mechanisms:

• Water erosion - Heavy rains and snowmelt wash soil particles away
• Poor drainage - Downspouts and grading direct water under slabs
• Organic decay - Buried roots, stumps, and organic matter decompose
• Animal activity - Groundhogs, moles, and other animals create tunnels
• Construction fill - Poor compaction leaves air pockets that consolidate

Buffalo’s weather accelerates void formation. Our freeze-thaw cycles and heavy precipitation create ideal conditions for soil erosion.

Warning Signs of Voids

Watch for these indicators that voids may exist:

• Hollow sound when walking on concrete
• Small sinkholes appearing near concrete edges
• Cracks developing without obvious cause
• Sections of concrete settling
• Puddles forming where water never collected before

The Danger of Ignoring Voids

Voids don’t get smaller on their own - they grow. What starts as a small cavity can eventually:

• Cause sudden concrete collapse
• Create serious trip hazards
• Damage vehicles or equipment
• Lead to costly emergency repairs

Our Void Filling Solution

Our limestone slurry void filling process:

1. We probe and test to map void locations
2. Strategic injection holes are drilled through the concrete
3. Limestone slurry is pumped into the cavity
4. The slurry flows throughout the void and hardens
5. Surrounding soil is stabilized by the spreading material

The result is solid, permanent support beneath your concrete.

Why Limestone Slurry for Voids

Limestone slurry is ideal for void filling because:

• Flowable - Reaches throughout complex void shapes
• Permanent - Hardens into rock-solid support
• Non-shrinking - Won’t compress or settle over time
• Eco-friendly - Natural limestone material
• Cost-effective - Much less expensive than excavation

Proactive Protection

Void filling is one of the few repairs that can be truly preventive. If you suspect voids under your concrete - perhaps from a known drainage issue or because neighbors have had problems - filling them now prevents emergency repairs later.

Contact us for a free void assessment. We can evaluate your property and identify areas at risk.