Problem:

A homeowner in New Hyde Park NY reached out to Zavza Seal after noticing several structural concerns around their property. Two large holes had formed in the backyard, raising worries about soil stability and potential sinkage. The concrete patio also showed signs of settling, and the homeowner wanted to add a new egress window for safety, ventilation, and code compliance.

During our inspection, we identified three key issues:

1.Two Large Holes in the Backyard

The holes were deep enough to require immediate reinforcement. Without proper stabilization, they could expand and compromise nearby hardscape and landscape areas.

2.Concrete Patio Instability

The patio, measuring approximately 10.6 by 18 feet, had insufficient soil support and lacked proper structural reinforcement. The homeowner also planned future use of the patio, making it crucial to secure its foundation.

3.Need for a Basement Egress Window

The existing basement window did not meet egress requirements. The homeowner wanted a safer, code-compliant escape route while also improving natural light and airflow.

These combined concerns pointed to a deeper issue: inadequate support and drainage beneath critical areas of the property.

Solution:

Our team at Zavza Seal approached the project with a comprehensive plan designed to restore structural integrity and ensure long term safety.

1.Backyard Holes: Concrete Pier Installation

To stabilize the ground and prevent further sinking, we:

• Prepared both holes for structural reinforcement
  
• Poured 4,000 PSI concrete into each hole to create durable, long-lasting concrete piers
  
• Ensured proper soil compaction to avoid future settlement
  

This created a strong footing beneath the affected areas and stopped further ground movement.

2.Concrete Patio Support and Reinforcement

To fully secure the patio and prevent shifting, our team performed the following steps:

• Provided temporary structural support to safely suspend the patio during excavation
  
• Excavated 18 inches below the bottom of the patio, which equals roughly 3.5 feet below grade around the entire perimeter
  
• Thoroughly tamped and compacted the soil
  
• Installed concrete formwork around the patio measuring 2.0 feet wide by 1.5 feet deep
  
• Extended the formwork 1 foot beyond the patio edge for better load distribution
  
• Installed a #4 rebar cage inside the formwork to increase structural strength
  
• Poured 4,000 PSI concrete and used vibration to ensure proper bonding and density
  

This process created a reinforced concrete perimeter footing, dramatically increasing durability and preventing settlement.

3.Basement Egress Window Installation

The homeowner chose to upgrade the basement with a modern, code-compliant egress system. Our team:

• Excavated the exterior foundation wall to fit the new window well enclosure
  
• Cut and enlarged the existing concrete wall opening to fit a new 34 inch wide egress window
  
• Installed the new prefabricated corrugated galvanized steel window well, rated at 18 gauge with a 10 year warranty
  
• Added a 24 inch deep gravel base for proper drainage
  
• Installed a soil-separator wrapped drainage pipe running down to the footing to redirect water away from the well
  
• Waterproofed and sealed the entire assembly for long term protection
  
• Installed a white inswing egress casement window (32 x 40 inches) and a 3 rung escape ladder for safety compliance

This upgrade transformed the basement by improving safety, moisture control, and natural light.