The Problem:
A homeowner in Wantagh, NY noticed that a concrete slab on their property had started to sink and settle. The surface was no longer level and created a safety concern.
After inspection, our Zavza Seal team found that long term water exposure had washed away the soil under the concrete slab. This caused voids and gaps beneath the slab. Without solid soil support, the concrete slowly sank.
If left untreated, the slab could continue to settle and crack, leading to more costly repairs in the future.
The homeowner needed a reliable way to stabilize the soil, lift the slab, and restore the surface without full concrete replacement.
The Solution:
We recommended a mudjacking concrete raising solution. Mudjacking is very effective for filling deep voids and supporting heavy concrete slabs. It provides better soil contact than foam in this type of condition.
Our team completed the project using the following steps:
- Removed and disposed of the existing drain system around the slab
- Drilled small access holes through the concrete slab
- Pumped a stone slurry grout beneath the slab to fully fill the voids
- Used controlled pressure to gently lift the slab back toward its original level
- Patched all drilled holes after the slab was raised
The process restored support under the slab and improved overall stability.
The Result:
Once the mudjacking was completed, the concrete slab was lifted and properly supported. The surface was noticeably more level and secure.
The homeowner benefited from:
- A stabilized concrete slab
- Reduced risk of further sinking
- Improved safety and appearance
- A cost effective alternative to slab replacement
The patched holes were visible due to the difference between old and new concrete, which was explained in advance so expectations were clear.
Why Mudjacking Is a Smart Choice in Wantagh, NY
Homes in Wantagh are often affected by soil movement and water exposure. When water erodes soil under concrete, mudjacking is one of the most reliable ways to restore support and extend the life of the slab.
Zavza Seal uses proven concrete raising methods designed for Long Island soil conditions and weather patterns.

