K.O.S. Restoration

What They Do

Water DamageMoldMold TestingFire and SmokeSewageAsbestosStorm

• Fire damage cleanup & repair
• Flood cleanup
• Flood restoration
• Flooring
• Mold cleaning
• Mold damage restoration
• Mold inspection
• Mold mitigation
• Mold remediation
• Sewage cleanup
• Water damage-related cleanup & repair
• Water damage-related mold removal
• Water removal
• 24 / 7 Emergency Response
• 24 Hour Emergency Service
• 24hr Service
• Advanced Drying
• Air Movers
• Antimicrobial Treatments
• Assessment Of The Damage
• Bathroom Leak
• Black Mold
• Black Water
• Broken Pipes
• Cabinet Drying
• Cabinet Installation
• Cabinet Restoration
• Carpet Cleaning

In Their Own Words

Since 2006, K.O.S. Restoration has helped homeowners and businesses recover from water damage, mold issues, and emergency property situations with speed and care. We’re an IICRC-certified restoration company offering 24/7 emergency services, including water damage cleanup, sewage removal, fire damage restoration, and mold remediation. When something goes wrong, our team responds quickly, identifies visible and hidden damage, and takes the right steps to protect your property and prevent mold. Locally owned in Bellport, NY, with a 45-minute response time throughout Suffolk County and service available in Queens. Call (631) 560-8999.

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

Before You Call K.O.S. Restoration

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. Do you also do remediation? If so, who checks your work?

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.
• Call a proMold Testing, When It Is Worth It and How to Read a Lab ReportWhen a mold test is worth paying for, which kind to ask for, why store kits mislead, and how to read spore counts, outdoor controls and a lab report yourself.
• Call a proThe First 48 Hours After a House FireWhat to do in the first two days after a house fire. Safe re-entry, utilities, insurance calls, securing the home, food, medicine and what never to clean.