Overview:

A homeowner in Brooklyn, NY contacted Zavza Seal after dealing with recurring basement moisture issues, mold contamination, and safety concerns with their sump pump power source. There were also damaged areas of brickwork and an aging water main without smart leak detection. The property showed clear signs of long-term water penetration and structural stress.

They needed a professional waterproofing strategy, mold remediation from licensed experts, and proper electrical and plumbing upgrades to secure their home.

Problem:

The home faced multiple interconnected problems:

• Mold growth on basement walls, ceilings, and structural materials
  
• A rubble stone foundation that allowed water intrusion during rain events
  
• An unsafe power setup for the sump pump without a GFCI outlet
  
• Damaged basement brick walls and deteriorating surfaces
  
• No monitoring system in case of water main leaks
  
• Moisture behind portions of first-floor drywall
  

The homeowner needed a permanent and safe solution that would address the causes, not just the symptoms.

Solution:

Zavza Seal provided a comprehensive plan led by licensed waterproofing and mold remediation specialists.

1. Electrical Safety Upgrade

• Installed a GFCI-protected outlet for the sump pump
  
• Connected to a compatible breaker for safe operation
  
• Provided a protective in-use cover and ideal placement to prevent interruptions
  

2. Mold Remediation and Site Containment

• Isolated the workspace with 6-mil plastic barriers
  
• Used negative air scrubbers (H13 HEPA filtration) for 3 days
  
• Removed and disposed of contaminated wood, drywall, and porous materials
  
• HEPA vacuumed and sanitized all surfaces using EPA-approved fungicidal agents
  
• Ground and waterproofed affected areas to remove deep mold
  
• Reinstalled drywall and restored finishes where necessary
  

3. Brick and Structural Repairs

• Removed damaged material using high-velocity wire brushing and grinding
  
• Installed 6,500 PSI structural repair mortar
  
• Reinforced weak areas with fiber mesh
  

4. Smart Auto Shutoff Water Main Monitor

• Rerouted and secured piping
  
• Installed and programmed the auto shutoff system
  
• Assisted homeowner with app setup for remote leak monitoring
  

5. Basement Waterproofing and Drainage System

For the 112 linear feet basement perimeter:

• Removed failing slab sections and soil intrusion
  
• Installed French drain with perforated 4-inch PVC piping
  
• Added a bed of gravel and vapor barrier to control groundwater
  
• Installed new sump pump basin and duplex pump system
  
• Connected sump discharge to the sewer line
  
• Added Delta dimpled membrane for continuous moisture channeling
  
• Re-poured 4-inch steel-reinforced concrete to complete the system
  

Results:

The work transformed this troubled basement into a dry, safe, and healthy environment:

• Mold contamination fully removed
  
• Air quality significantly improved
  
• Basement protected with a long-term waterproofing system
  
• Structural integrity restored
  
• Sump system operating safely and efficiently
  
• Smart leak detection system in place for proactive protection
  

The homeowner can now use their basement with confidence and peace of mind.

Need Basement Waterproofing or Mold Removal in Brooklyn?

Zavza Seal specializes in foundation waterproofing, indoor air safety, structural repairs, and long-lasting moisture control solutions that protect your home for years to come.

Contact us today for a free inspection and professional assessment.