EPOXY & POLYUrethane Foam Foundation Crack Repair

Concrete Crack Injection Services in South Jersey

South Jersey Waterproofing & Structural Repair is a trusted leader in concrete crack repair and crack injection services throughout the region. We help homeowners stop water infiltration quickly, permanently, and without disruptive construction.

How Concrete Crack Injections Work

When water leaks through a concrete basement wall or foundation crack, it often spreads fast. To stop this, we inject liquid urethane foam directly into the crack. As soon as urethane comes into contact with moisture, it expands and fills the void. This creates a watertight seal from the inside out.

Why Our Injection Method Works Better

Our team repairs concrete cracks by injecting urethane from the bottom to the top of the wall, ensuring full coverage across the entire foundation thickness. This approach seals every part of the crack, keeps groundwater outside, and protects your basement for the long term.

As the urethane cures, it forms a closed-cell foam that prevents water from pushing back through the wall. The foam bonds tightly to the concrete and won’t wash out or loosen over time. Once sealed, the crack will not leak again.

Why Hydraulic Cement Patches Fail

Many homeowners try hydraulic cement, but it’s far less reliable. First, the crack must be chiseled into a V-shape, which is messy and time-consuming. Even after that, the cement only fills a shallow surface area. It does not reach the full depth or width of the concrete wall, so water continues to enter from the outside.

Over time, salts and moisture break the bond between the cement patch and the original concrete. When that happens, leaks return, often worse than before.

The Long-Term Solution

Concrete crack injections provide a cleaner, faster, and much more effective repair. With South Jersey Waterproofing, your foundation gets a permanent seal, and your basement stays dry, no matter the season.

Clean, No-Dig Foundation Crack Repair

A simple patch only covers the inside surface of a foundation crack. Because the bond is weak, water can eventually push the patch off the wall and leak back into the basement. This often leads to repeat repairs and more damage over time.

With our concrete crack injection method, all repairs happen from inside the basement. There’s no digging, no excavation, and no disruption to your yard or landscaping. You also avoid drilling, chiseling, or breaking apart the foundation.

Instead, we fill the entire crack with our injection material. It reaches the full width of the wall and seals the leak at its source. As a result, water stays out, the basement stays dry, and your belongings remain protected.

Contact us today for a free quote and keep your South Jersey home dry year-round!