Town/Neighborhood: Elmont
Borough/County: Nassau County
Construction Type: Residential
Category: Basement Waterproofing, Foundation Wall Repair

Problem:

A homeowner in Elmont, NY experienced water intrusion in the basement TV room, where moisture was seeping through the joint between the concrete floor slab and the foundation wall. The issue posed a risk to the finished interior and could have led to long-term water damage, mold growth, and loss of heating functionality if left unaddressed.

Solution:

Work Area: Basement Room Foundation Wall (Approx. 13 linear feet)

Zavza Seal approached the repair by targeting the source of the water intrusion and restoring the affected finishes as follows:

• We began by removing the baseboard heating unit to ensure full access to the problem area.
  
• Next, we cut the sheetrock drywall 24 inches above the floor across approximately 13 linear feet. We also removed the studs and baseplate to expose the foundation wall for detailed repair.
  
• We then ground a 3-inch channel vertically on the foundation wall and 3 inches horizontally on the floor slab at the joint where water intrusion was present.
  
• To permanently seal the area, we applied mesh-reinforced Basecrete waterproof cement, a high-performance solution ideal for withstanding hydrostatic pressure.
  
• After the waterproofing work cured, we reinstalled the wall framing, installed new drywall, and taped and compounded the seams for a smooth finish.
  
• We completed the project by reinstalling the baseboard radiator, restoring full functionality and appearance to the room.
  

Note: A detailed inspection of the above-grade section of the poured concrete foundation wall revealed no structural cracks, confirming the issue was isolated to the floor-to-wall joint.

We’re here to help! Call now to safeguard the foundation of your home!