Location:
Northport, NY
Service Area:
Foundation Wall Crack Repair
The Problem
A homeowner in Northport, NY contacted Zavza Seal after discovering a structural crack in their foundation wall. This type of crack posed both a structural risk and a moisture intrusion threat. Over time, foundation cracks can widen, leading to water seepage, reduced structural integrity, and potential property devaluation if left unaddressed.
Our Solution
Zavza Seal developed a targeted plan to repair and waterproof the structural crack using proven, long-lasting materials and techniques.

Step-by-Step Process
- Crack Cleaning and Preparation:
We began by thoroughly raking out and cleaning the crack along its entire length and depth. This ensured proper adhesion for all repair materials and eliminated loose debris. - Filling with High Strength Mortar:
The crack was then filled completely using high strength mortar, which provides both compressive strength and lasting stability. - Carbon Fiber Stitches Installation:
To prevent future separation and movement, we installed carbon fiber stitches spaced every 6 inches across the crack. This method enhances the tensile strength of the wall, significantly reducing the risk of the crack reopening. - Waterproofing with Basecrete and Fiberglass Mesh:
To fully seal the repair, we applied two coats of Basecrete waterproofing cement. Between the coats, we embedded an 8-inch wide strip of 4.5oz fiberglass mesh, which reinforces the waterproof barrier and ensures flexibility to handle minor movements in the foundation.
The Result
✔ Crack Stabilized
The structural integrity of the foundation wall was fully restored, reducing the risk of further movement or cracking.
✔ Waterproofed Foundation
By applying Basecrete and fiberglass mesh, the area was effectively sealed against moisture intrusion.
✔ Long-Term Durability
Carbon fiber stitching and high-strength mortar provide a solution that outperforms traditional crack patching methods.
✔ Peace of Mind for the Homeowner
The homeowner now has a structurally sound and
Invest in the longevity of your home with seamless solutions from certified professionals from Zavza Seal. Call now for free inspections today (631) 980-1800.