The Crack Injection Process: Sealing the Problem at Its Core When it comes to foundation repair, crack injection is one of the most effective ways to stop water infiltration and restore structural integrity. At 1 Dry Basement, we take a meticulous, step-by-step approach to ensure each crack is properly sealed—because shortcuts lead to repeat problems. Here’s how we repair foundation wall cracks with confidence: Our Crack Injection Process:
We start by identifying the type, size, and location of the crack. Is it leaking? Is it structural? This determines whether we use polyurethane for flexible sealing or epoxy for structural bonding.
Cleanliness is everything. We grind and wire-brush the crack area to remove dirt, paint, and loose concrete. This helps the materials bond properly and ensures no debris interferes with injection.
For deeper or wider cracks, we drill holes along the length of the crack in a stitch pattern to allow for better product flow and penetration behind the wall surface. This creates a direct path for injection and strengthens the entire repair.
- Injection Port Installation
Injection ports are placed in the pre-drilled holes and tightly secured. These ports give us control over the flow and pressure of the product being injected.
We seal the surface of the crack with an epoxy paste to contain the injected material and direct it deep into the crack.
Using low-pressure or high-pressure equipment, we slowly inject the chosen material. Polyurethane expands to fill active leaks, while epoxy bonds the concrete for added strength.
Once the injection is complete, the material is given adequate time to cure. We never rush this step—strong repairs take time to set.
Ports are carefully removed, and the area is ground smooth for a clean finish. If needed, we patch and repaint to restore the wall’s appearance.
We verify that every part of the crack has been properly sealed and check adjacent areas to ensure no secondary problems exist.
