Overview
A homeowner in Lynbrook, NY contacted Zavza Seal to resolve persistent water infiltration and drainage issues at the back of their garage and yard. Water was seeping through the foundation wall, causing dampness, soil erosion, and long-term risk of structural damage. Our experts inspected the site and implemented a comprehensive drainage system to manage water flow and protect the property.
The Problem
The property’s garage wall and adjacent yard were experiencing water intrusion and pooling during heavy rain. The homeowner reported that water was entering through gaps and cracks between the foundation wall and the concrete slab. Over time, the soil near the foundation had become saturated, threatening the stability of the wall and creating a damp, unappealing backyard.
We identified two major issues:
- Ineffective water drainage away from the foundation.
- Cracks and gaps in the foundation and slab allowing water infiltration.
Left untreated, these problems could lead to further structural deterioration and more costly repairs.
The Solution
Our team designed and installed a tailored drainage system and waterproofing solution to effectively redirect water away from the foundation and reduce infiltration.
Step 1: Excavation and Drainage Pipe Installation
We excavated a trench approximately 30 linear feet along the back of the garage wall, extending an additional 6 linear feet toward the back fence. The trench reached the bottom of the footing to ensure water was intercepted before reaching the foundation.
- Installed a bed of gravel and laid a 4-inch perforated pipe wrapped in a soil separator fabric to prevent clogging.
- Backfilled around the pipe to facilitate drainage while maintaining soil integrity.
Step 2: Catch Basins and Dry Well Installation
To manage surface water effectively, we installed three interconnected catch basins, which collect runoff and direct it into an underground dry well located at the end of the trench extension.
- The dry well was fitted with a popup drainage emitter, allowing excess water to be safely discharged at a designated point during heavy storms or extraordinary water volume events.
Step 3: Waterproofing the Foundation Wall
We thoroughly cleaned the exposed wall and footing with a steel brush to remove debris and prepare the surface.
- Applied a coat of liquid rubber waterproofing to seal the foundation wall against moisture penetration.
Step 4: Exterior Sealant Application
Finally, we applied a self-leveling exterior sealant along the joint between the foundation wall and the concrete slab to temporarily stop water infiltration through gaps and cracks.
- The sealant is expected to perform effectively for 2 to 3 years.
- We advised the homeowner to plan for a more permanent solution in the future, such as demolishing and replacing the concrete strip near the foundation with newly poured concrete for better long-term protection.
The Result
The homeowner in Lynbrook, NY, now has an efficient drainage system that diverts water away from the foundation and prevents pooling in the yard. The foundation wall is waterproofed, and the temporary sealant provides immediate relief from water infiltration while allowing time to plan a permanent upgrade.
Why Choose Zavza Seal?
At Zavza Seal, we specialize in drainage system installation in Lynbrook and throughout Long Island, providing homeowners with durable solutions to protect their foundations and yards. Whether you need catch basins, dry wells, or foundation waterproofing, our expert team is ready to help keep your property dry and secure.
Contact us today for a consultation and protect your home from water damage.