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Case Study: Basement Renovation and Bathroom Preparation in Brooklyn, NY
Basement Renovation in Brooklyn, NY – A Sump Pump System Being Installed in a Basement Renovation Project in Brooklyn, NY, by Zavza Seal LLC

Town/Neighborhood: Flatbush 

Borough/County: Kings County 

Construction Type: Residential 

Category: Basement Renovation, Bathroom Tiling, Floor Resurfacing

Meta Description: Basement renovation in Flatbush, Brooklyn—floor resurfacing, bathroom prep & waterproofing. Call Zavza Seal at 631-980-1800 today!

Problem

The homeowner in Brooklyn, NY contacted Zavza Seal to prepare their basement for a new bathroom installation. The existing concrete floor was uneven, damaged, and unsuitable for tile or general use. The space required a multi-surface floor repair solution that included tile installation, gym mat flooring, and epoxy coating; all while ensuring moisture control and long-term durability.

The client needed a precise, phased approach to create a smooth subfloor, install waterproofing systems, and deliver a finished basement ready for functional use.

Solution

Our team at Zavza Seal executed a comprehensive basement renovation strategy to meet the client’s goals for durability, moisture resistance, and multi-use functionality.

Subject Area: Basement Bathroom Zone

  • Covered the floor with mortar (no gravel) to smooth the surface
  • Applied Thinset and installed Schluter-DITRA uncoupling, waterproofing membrane, and vapor barrier
  • Applied a second layer of Thinset
  • Installed large-format floor tile (customer-supplied)
  • Grouted and cleaned to complete the finish

Scope 1: Basement Floor Resurfacing (Approx. 545 sq. ft)

  • Cleaned existing concrete surface
  • Patched deep indentations with high-strength cement and fiberglass mesh to prevent future cracking
  • Applied Flo-Coat resurfacing material to non-tiled areas for a smooth, uniform subfloor

Scope 2: Gym Mat Installation (Approx. 300 sq. ft)

  • Installed commercial-grade 1” thick gym mats
  • Left final 3 feet near bathroom entrance uncovered for epoxy coating

Scope 3: Epoxy Coating (Approx. 245 sq. ft)

  • Applied a 1-part epoxy finish over resurfaced area
  • Installed thresholds to transition into tiled zones and prevent tripping hazards

Note

Tile was provided by the customer to accommodate specific color and pattern preferences. Thresholds were installed to manage elevation changes between flooring types and ensure safe transitions. All work was performed with attention to moisture control, safety, and long-term durability.

Basement Renovation in Brooklyn, NY – A Before and After Showing Resurfaced and Tiled Bathroom Area 

Conclusion

This basement renovation project in Brooklyn, NY highlights Zavza Seal’s expertise in multi-surface preparation, basement waterproofing, and precision tiling. By combining concrete resurfacing, gym mat installation, and epoxy coating, our team delivered a functional, attractive, and moisture-resistant basement ready for bathroom installation and everyday use.

Need help with basement renovation or bathroom tiling in Brooklyn, NY? 

Contact Zavza Seal now by filling out this contact form or call us at (631) 980-1800 or fill out this form to schedule a free inspection and receive expert flooring solutions with guaranteed results.

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