At Zavza Seal, we pride ourselves on delivering long-lasting solutions for homeowners dealing with foundation water intrusion. This case study highlights a recent project in Stony Brook, NY, where we addressed water seepage and cracks on an exterior foundation wall with a robust waterproofing system.
The Problem
A homeowner in Stony Brook, NY, contacted Zavza Seal after noticing water infiltration and dampness near a window on the exterior foundation wall. The area under the window had been modified in the past, where an old door opening was blocked to install the window. Over time, improper sealing and foundation settlement led to two additional cracks appearing on the same wall.
Water was seeping through the foundation during rains, raising concerns about long-term damage and potential mold growth inside the home. The homeowner needed a permanent foundation waterproofing solution in Stony Brook that would protect the property from further water intrusion.
Our Solution
Our team performed a thorough inspection and designed a comprehensive repair plan to address both the primary affected area under the window and the two additional foundation cracks. The solution included excavation, surface preparation, liquid waterproofing, and installation of a high-performance waterproofing membrane.
Subject Area: Exterior Foundation Wall Under the Window
The first step focused on the area under the window, which extended 2 feet on each side for a total of approximately 8 linear feet.
- We excavated the exterior down to the bottom of the footing, approximately 3 to 4 feet deep.
- The wall surface was cleaned thoroughly using steel brushes to ensure proper adhesion of waterproofing materials.
- We applied a layer of liquid waterproofing rubber to the entire exposed foundation wall and footing, creating a seamless barrier against water intrusion.
- To further enhance protection, we installed a Delta brand high-performance heavy-duty dimpled waterproofing membrane. This premium membrane features a recycled HDPE on the inside layer and virgin high-density polyethylene on the outside layer. Its unique vacuum-formed dimple pattern allows incidental water to flow down to the footing and away from the foundation.
- After completing the waterproofing system, we backfilled the excavation to the original grade level, graded the soil to slope away from the foundation for improved drainage, and compacted the soil using a plate compactor to ensure stability.
Subject Area: Two Additional Foundation Cracks
Next, we addressed the two additional cracks on the same wall, applying the same proven approach:
- Excavated the exterior of each crack area (1 foot to each side of the crack) down to the footing depth.
- Cleaned the wall surface with steel brushes.
- Applied liquid waterproofing rubber across the full exposed wall and footing.
- Installed the same Delta brand waterproofing membrane to divert water and protect the structure.
- Backfilled the area, graded the soil to slope properly away from the foundation, and compacted it to restore stability.
The Results
The homeowner was extremely satisfied with the results. After a series of heavy rains, the foundation wall remained completely dry with no signs of water seepage or dampness. The installation of the foundation waterproofing membrane in Stony Brook ensured a long-lasting solution that not only repaired the damage but also protected the property against future water intrusion.
By combining advanced materials with expert workmanship, Zavza Seal delivered a high-quality outcome that provided peace of mind and preserved the integrity of the home.
Why Choose Zavza Seal?
When it comes to exterior foundation waterproofing in Stony Brook, Zavza Seal offers unmatched expertise, reliability, and value:
- Experienced with New York’s unique soil and weather conditions
- Fully licensed and insured
- Premium-grade materials and professional installation
- Customized solutions tailored to each property’s needs
- Transparent communication and exceptional customer service
Whether you are dealing with leaks, cracks, or moisture problems, our team has the knowledge and tools to provide durable, effective solutions.
Protect Your Foundation Today
If you’re noticing water intrusion, foundation cracks, or dampness in your basement or crawlspace, don’t wait for the damage to get worse. Zavza Seal offers professional foundation waterproofing and crack repair in Stony Brook and throughout Long Island, Brooklyn, Queens, and the Bronx.
Contact us today for a free consultation and see how our proven waterproofing systems can protect your home for years to come.