Overview:

A homeowner in Bethpage NY contacted Zavza Seal after noticing early signs of foundation movement near the southeast side of the house. The crawl space in this area was extremely tight, making access difficult. Still, the homeowner needed a long lasting structural solution without removing the deck above the crawl space. After a full assessment, our team recommended performing the entire repair from inside the crawl space to save cost and minimize disturbance.

Problem:

The southeast crawl space foundation wall, approximately ten linear feet in length, showed signs of weakening. Soil settlement and limited structural support posed increasing risks for movement in the surrounding structure.

The main challenges included:

• The space was tight, making maneuvering extremely difficult.
  
• The deck above would typically require demolition for proper access.
  
• The existing footing and foundation wall needed reinforcement to ensure long term stability.
  

Working from the crawl space interior was the most cost effective and least invasive option, but it required precise planning and careful execution.

Solution:

Zavza Seal developed a structurally sound, step by step reinforcement plan that strengthened the foundation while protecting the home throughout the process.

Interior Excavation and Footing Preparation

To begin, our team excavated the interior crawl space to gain access to the work area.

• We excavated approximately 18 inches deep and 14 inches wide along the affected ten foot area.
  
• The soil was compacted thoroughly to create a stable base.
  
• A #4 rebar cage was installed over the compacted soil, and continuous rebar was tied along the full length of the new footing.
  

Reinforced Concrete Footing Installation

With the base prepared:

• We formed a new reinforced concrete footing measuring 16 inches deep by 12 inches wide.
  
• Core holes were drilled into the middle of the existing slab every two feet, approximately 2 inches below the slab surface.
  
• Structural epoxy was injected into each core hole, and #4 rebars were inserted and secured.
  
• These rebars were then tied to the new footing reinforcement using steel wire, connecting both systems into one unified structure.
  

Staggered Construction for Stability

Because undermining the building could compromise safety, we completed the work in controlled staggered sections.

• Each three foot section was reinforced separately.
  
• At the midpoint of each section, steel posts were installed to provide temporary structural support during construction.
  

Concrete Pouring and Final Reinforcement

Once all reinforcement steps were complete:

• We poured 4,000 PSI structural concrete into the new footing forms.
  
• This high strength concrete ensures long term durability and stability.
  
• The area was cleaned, and temporary supports were removed once the concrete reached the required strength.
  

This Bethpage NY crawl space project demonstrates how even the most challenging access conditions can be handled effectively with the right expertise. By working entirely from the interior, Zavza Seal saved the homeowner from unnecessary deck removal while still delivering a reinforced foundation designed to last. The newly installed footing system, rebar integration, and high strength concrete provide reliable structural support for decades to come.