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Case Study: Comprehensive Basement Waterproofing Project in East Moriches, NY

Client: Private Residence
Location: East Moriches, NY
Service: Full Perimeter French Drain System Installation for Basement Waterproofing

Project Overview

A homeowner in East Moriches, NY, reached out to Zavza Seal LLC to address persistent water intrusion in their basement. After an on-site inspection, our team identified the primary issues and proposed a comprehensive solution centered for Basement waterproofing East Moriches around a French drain system. This project required a strategic, multi-phase approach to ensure maximum water drainage efficiency and a watertight basement environment.

Challenges

The main challenges were:

  • Continuous under-slab water pressure leading to recurring basement flooding.
  • Inadequate drainage within the existing setup, which included multiple sump pumps.
  • The presence of cinder block walls, necessitating special measures to allow effective drainage.

Solution and Implementation

To achieve a lasting waterproofing solution, Zavza Seal LLC deployed a custom-designed French drain system, covering approximately 200 linear feet around the basement’s perimeter and including a transverse trench. This design would effectively relieve under-slab pressure and ensure optimal water flow away from the foundation.

Project Phases and Steps

  • Phase I: Preparation and Sectional Work Staging
    To facilitate an orderly work process, we moved furniture and personal items to one side of the basement and installed protective plastic sheeting to shield the area from dust and debris. This setup enabled us to maintain a clean and organized workspace for a smooth project transition.
  • Phase II: System Installation
    • Trench and Pipe Installation
      We cut and excavated a trench along the entire perimeter of the foundation floor and created a transverse trench through the center of the basement. The installation involved a 4-inch perforated PVC pipe, surrounded by gravel and filter fabric to prevent debris buildup, ensuring seamless water flow.
    • Weep Holes for Cinder Blocks
      Using diamond-tipped bits, we drilled two weep holes in each cinder block around the basement’s perimeter, allowing trapped water in the walls to drain directly into the newly installed French drain.
    • Sump Pump Integration
      The drainage system transitions into a duplex sump pump with a sump basin, configured to efficiently discharge water. We retained one sump basin from the previous setup, filling the remaining basins with gravel and high-strength cement to prevent any water backflow.
    • Concrete Finishing
      Once the drainage system was securely in place, we filled the trench with 4 inches of 4,000 PSI high-strength concrete. Our team meticulously troweled the new surface to ensure it was smooth and level with the adjacent concrete floor.
  • Phase III: Crack Repair and Final Waterproofing
    • Crack Repair
      We inspected the entire basement floor for cracks, grinding and sealing them with reinforced 4.5 oz fibermesh embedded in 7,000 PSI Basecrete waterproofing cement. This approach significantly strengthens and waterproofs the repaired areas.
    • Full-Surface Waterproofing Application
      To complete the project, we cleaned the floor with steel brushes, applied two coats of Basecrete waterproofing cement over the entire floor, ensuring a durable and fully sealed finish.

 

Basement in dire condition before waterproofing.

Basement in dire condition before waterproofing.

 

Terrible basement condition before waterproofing.

Terrible basement condition before waterproofing.

 

Results

The French drain installation successfully resolved the basement’s water intrusion issues, enhancing its resilience against future flooding events. By routing all drainage to a single, efficient sump pump system and waterproofing the floor, Zavza Seal LLC delivered a fully sealed, moisture-protected basement for the client.

Key Project Highlights

  • Installation of a 200-linear-foot French drain system to mitigate water intrusion.
  • Specialized weep holes in cinder block walls for enhanced water flow.
  • Removal of redundant sump pump basins, optimizing drainage with a single sump basin.
  • Multi-layered waterproofing protection, including high-strength Basecrete.

Client Satisfaction

The homeowner was highly satisfied with Zavza Seal LLC’s thorough and organized approach, which prioritized both technical excellence and minimal disruption to their home. By addressing underlying structural issues and creating a durable waterproofing solution, we provided the client with peace of mind and a basement they can now confidently utilize.

Zavza Seal LLC specializes in customized waterproofing solutions across East Moriches and the surrounding New York area. Our team’s expertise in basement waterproofing and French drain installation ensures your property remains dry, safe, and structurally sound. Contact us today to discuss your waterproofing needs in East Moriches, NY, and learn how we can protect your basement from water damage for years to come.

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