Green Island Group

What They Do

Water DamageMoldFire and SmokeSewageAsbestosLead PaintStorm

• Asbestos Abatement
• Asbestos Abatement Company
• Asbestos Abatement Contractors
• Asbestos Removal Companies
• Asbestos Removal Contractors
• Asbestos Contractors
• Asbestos Abatement Near Me
• Asbestos Abatement Company Near Me
• Asbestos Abatement Contractors Near Me
• Asbestos Removal Companies Near Me
• Asbestos Removal Contractors Near Me
• Asbestos Contractors Near Me
• Bathroom Remodelers
• Bathroom Remodelers Near Me
• Bathroom Renovation
• Broken Pipes
• Burst Pipes
• Burst Pipes Near Me
• Carpets And Rugs
• Clean And Disinfect
• Commercial And Residential
• Commercial Construction
• Commercial Construction Near Me
• Commercial Property
• Coronavirus Clean Up
• Demolition Contractor
• Demolition Contractor Near Me
• Demolition Job

In Their Own Words

At Green Island Group Co., we are open all day, every day so that we can provide constant support to our Nassau County, Suffolk County and all five New York borough customers. If you are in need of quality, dedicated damage repair services, then call us today so that we can help you get through this trying time by restoring your home or business to the condition it was before water damage happened.

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

Before You Call Green Island Group

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. How will you deal with smoke odor inside wall cavities and the HVAC ducts?

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 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.
• Call a proSewage Backup Cleanup, What You Can and Cannot DoWhat to do when sewage backs up into your home. How to stay safe, what you can clean yourself, what must be thrown out, and when to call a specialist.