Zavza Seal LLC

What They Do

Water DamageMoldOdor

• Zavza Seal - Odor Removal

In Their Own Words

Zavza Seal LLC is a trusted, locally owned Waterproofing, Insulation & Mold Remediation contractor with locations in Brooklyn NY and Long Island NY. Our licensed and insured team specializes in basement waterproofing, insulation services, and more. From foundation and crawl space waterproofing to egress window installation and attic insulation, we offer a comprehensive range of services. Count on us for mold removal, water damage restoration, and repairs for basement, foundation, and crawl space cracks. We also provide attic, basement, and crawl space insulation, including batt insulation, fiberglass insulation, blown-in insulation, and spray foam insulation.

Written by the business on its public profile. We have not verified these claims.

Before You Call Zavza Seal LLC

1. Do you take moisture readings every day and will you give me the drying log?
2. Are your technicians certified in water damage restoration?
3. Where do you think the moisture is coming from, and who fixes it?
4. Will you set up containment and negative air, and how will you protect the rest of the home?
5. What do you think the source is?

For mold jobs over 10 square feet, ask for a New York State licensed mold remediator and a separately licensed mold assessor, plus the Nassau or Suffolk County home improvement license. Also ask for proof of insurance and industry certification for the restoration crew.

How Their Reviews Break Down

Counts from public listings as of September 23, 2026. A handful of reviews says less than a few hundred.

Read This While You Wait

• DIY with careWhat to Do in the First 24 Hours After Water DamageAn hour by hour plan for the first day after water damage. Make it safe, stop the source, document, remove water and start drying before mold can start.
• DIY with careSafe DIY Mold Cleanup for Areas Under 10 Square FeetA step by step method to clean up mold under 10 square feet safely, with the gear to buy, what to throw away, why bleach is not the default, and when to stop.
• DIY with careGetting Smoke Odor Out of a Home, and Why Ozone Is RiskyHow to remove smoke odor from a home for good. Clean the source, wash fabrics, fix the HVAC, seal what cannot be cleaned, and why ozone generators are risky.
• DIY friendlyWasher, Dishwasher, Fridge and Toilet Supply Line LeaksHow washer hoses, dishwasher lines, ice maker tubing and toilet supply lines fail, how to clean up each kind of leak, and how to replace a line yourself.