Case Study: Structural Crack Injection Repairs Restore NYC Property


Zavza Seal LLC, a leading general contractor serving the New York area for over 20 years, recently addressed a challenging situation involving structural cracks and water seepage in a residential property. This case study details the project scope, the challenges encountered, and the successful application of structural crack injection techniques to restore the property’s integrity.

Project Background:

The homeowner in Huntington Station, New York contacted Zavza Seal LLC after noticing cracks developing in a load-bearing wall of their property. These cracks were not only unsightly but also caused water seepage from the exterior, leading to concerns about structural integrity and potential mold growth.


Our initial inspection revealed the following challenges:

  • Multiple Cracks: The wall exhibited several vertical cracks, some hairline thin and others up to 3 millimeters wide.
  • Water Seepage: Visible water stains on the interior wall confirmed water ingress through the cracks.
  • Structural Concerns: The load-bearing nature of the wall necessitated a repair solution that restored its structural integrity in addition to waterproofing.
  • Minimizing Disruption: The homeowner desired a repair method with minimal disruption to the interior living space.


Based on the assessment, Zavza Seal LLC proposed structural crack injection as the most effective and minimally disruptive solution. The chosen approach involved the following steps:

  1. Surface Preparation: The area around the cracks was meticulously cleaned and prepped to ensure proper adhesion of the injection materials.
  2. Crack Routing and Cleaning: A qualified technician carefully routed and cleaned the cracks to remove any loose debris and create a proper channel for the injection material.
  3. Injection Port Installation: Small injection ports were strategically placed at designated intervals along the length of each crack.
  4. Crack Injection: A high-performance, epoxy-based resin was carefully injected into the cracks using specialized equipment. This resin fills the cracks, bonds with the surrounding concrete, and creates a watertight seal.
  5. Monitoring and Curing: The injected area was monitored for proper curing and any minor surface irregularities were addressed to ensure a smooth finish.


The structural crack injection project was a success. The cracks were effectively filled and sealed, preventing further water seepage and restoring the structural integrity of the wall. This solution also minimized disruption to the living space, as the injection process is relatively clean and requires minimal excavation.


This project exemplifies the benefits of structural crack injection for addressing issues like:

  • Waterproofing: The injected resin creates a watertight barrier, preventing future water ingress and potential mold growth.
  • Structural Reinforcement: The high-strength epoxy resin strengthens the cracked area, restoring the structural integrity of the wall.
  • Minimally Disruptive: Compared to traditional repair methods, crack injection requires minimal demolition and disruption to the surrounding area.
  • Cost-Effective: Structural crack injection is often a more cost-effective solution compared to extensive reconstruction projects.


Zavza Seal LLC’s experience with structural crack injection demonstrates our commitment to innovative and effective repair solutions. By employing this technique, we successfully addressed the New York property’s structural and water seepage concerns, ensuring a safe and dry environment for the homeowner.

Community Care Starts with Sharing Knowledge.
Share The Article