Client Concern
Mr. Katan of Farmingdale, NY contacted Zavza Seal LLC regarding a deteriorating section of his old chimney foundation. Moisture intrusion and seasonal damage had compromised the area, causing visible wear around the clean-out opening. Mr. Katlan needed a lasting repair that would restore the integrity of the chimney base while preventing future water-related damage.
Initial Evaluation
On January 27, 2025, our team conducted a full on-site assessment. The chimney clean-out area showed signs of:
- Structural degradation due to efflorescence and loose material buildup
- Cracks allowing water intrusion
- Surface contamination from paint and other foreign agents
The scope required a multi-step waterproofing and reinforcement approach to ensure long-term durability.
Scope of Work
- Site Preparation & Surface Cleaning
Cleared approximately 6 inches of space around the old chimney clean-out
Scarified the area to remove paint, efflorescence, and other contaminants - Crack Sealing and Structural Reinforcement
Drilled multiple access ports to inject targeted repairs
Injected polyurethane and epoxy into damaged sections to fill and seal gaps - Waterproofing Application
Applied one coat of Basecrete waterproofing cement
Installed a layer of 4.5oz fiberglass mesh for reinforcement
Finished with a second coat of Basecrete to seal and complete the chimney foundation repair
Outcome
All work is backed by Zavza Seal’s 40-year limited workmanship warranty, covering the specific surface areas we treated. This warranty ensures that the labor and materials used in restoring Mr. Katan’s chimney clean-out area will remain defect-free under normal use and maintenance. Equipment and materials not manufactured by Zavza Seal are covered by their respective manufacturer warranties.

Restoring Function & Preventing Moisture Damage – Farmingdale, NY
Zavza Seal LLC’s expert masonry waterproofing team successfully stabilized and sealed a vulnerable section of this Farmingdale home’s chimney. With the use of high-performance materials such as epoxy, polyurethane, and Basecrete, we provided a seamless waterproofing solution that addresses both function and future resilience.
Need expert waterproofing or chimney restoration? Call (631) 980-1800 or Schedule Your Free Estimate today.