The Problem: Black Mold in a Brooklyn Bathroom
A homeowner in Brooklyn, NY, contacted Zavza Seal after noticing dark patches and a musty odor in their bathroom. Upon inspection, our Senior Estimator, a New York State Licensed Mold Abatement Supervisor, identified the presence of toxic Stachybotrys Chartarum mold, commonly known as black mold, in multiple locations throughout the bathroom.
The black mold was visible on sheetrock, old caulking, and even on some tiles. The extent of the mold behind the walls and insulation was unknown at the time of inspection, raising concerns about hidden damage and potential health risks.
The homeowner wanted a licensed mold remediation company in Brooklyn to properly address the contamination and restore a safe and healthy environment.
The Solution: Comprehensive Mold Remediation by Zavza Seal
Zavza Seal developed and executed a detailed remediation plan tailored to the bathroom’s specific conditions.
Step 1: Careful Removal of Contaminated Materials
- Removed and disposed of mold-infested sheetrock and old caulking.
- If insulation was found behind the sheetrock and showed signs of mold, it was safely removed and disposed of in compliance with New York State disposal regulations.
Step 2: Disinfection and Surface Preparation
- Sprayed all exposed surfaces with an all-natural disinfectant that eliminates mold and mildew while also repelling rodents.
- Wire-brushed and sanitized areas where mold had taken hold.
- Shaved the surface of mold-affected wood to remove contamination. In cases where mold penetrated deeply into the wood, the affected sections were removed and joists were reinforced with new, healthy wood.
Step 3: Mold Prevention Measures
- Encapsulated exposed surfaces with a water-based fungicidal protective coating. This EPA-registered coating prevents future fungal and microbial growth.
- Ensured that all wood surfaces and hidden areas were treated to prevent mold recurrence.
Step 4: Bathroom Restoration
- Wiped down all surfaces, including the bath vent, with the all-natural disinfectant.
- Re-caulked all areas where moldy caulking had been removed.
- Installed new sheetrock, taped, applied joint compound, and restored the wall to its original condition.
- Sanded and painted the repaired areas using paint provided by the homeowner.

The Results: A Healthy, Mold-Free Bathroom
By choosing Zavza Seal, the homeowner in Brooklyn now enjoys a clean, safe, and mold-free bathroom. Our comprehensive approach not only removed all traces of visible black mold but also addressed hidden risks to ensure long-term protection.
As a licensed mold remediation company in Brooklyn, Zavza Seal continues to provide effective solutions for homeowners dealing with black mold and other indoor air quality concerns.
If you notice signs of mold in your bathroom or anywhere in your home, contact Zavza Seal today to schedule a professional inspection and remediation service.
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