NYS and NYC M/WBE Certified Contractor
A flooded basement in Stony Brook isn’t just an inconvenience it’s a ticking clock. Mold starts growing within 24 to 48 hours, and in a community where the average home was built in the mid-1960s, that moisture doesn’t just sit on the floor. It moves into original insulation, behind plaster walls, and underneath flooring that hasn’t been touched in decades. By the time you see discoloration or smell something off, the problem behind the wall is already weeks old.
What changes after a proper cleanup isn’t just the absence of water. It’s knowing the structure dried completely, not just the surface. We use calibrated moisture meters and thermal imaging cameras to find saturation that a shop vac and a box fan will never reach. That matters especially in Stony Brook, where homes near West Meadow Beach and the harbor corridor sit on ground that holds water long after the rain stops.
The other thing that changes is the paper trail. When your insurance adjuster asks for documentation and they will a professional remediation creates the damage record you need. We handle that documentation and bill your carrier directly. For the many Stony Brook homeowners who discovered during the August 2024 storms that their standard policy didn’t cover external flooding, having a contractor who understands that gap and can help you navigate it is worth as much as the extraction itself.
Green Island Group is a Suffolk County-based restoration company led by CEO Jessica Dussan and VP Leo Torres. We’ve completed more than 5,000 restoration projects across New York State over the past 12-plus years, and we keep fully-equipped trucks staged in Suffolk County specifically to serve the Stony Brook University area and the surrounding Three Village communities.
What sets us apart in this market isn’t just response time it’s what we’re licensed to do when we get there. We hold a Suffolk County General Contractor license, NYS DOL Mold and Asbestos licenses, and USEPA Lead and RRP certifications. In a neighborhood where most homes predate 1978, that full licensing stack matters. If a flood disturbs asbestos pipe insulation or lead-painted walls which is a real possibility in the homes along Christian Avenue or anywhere north of Route 25A we handle it legally and completely without calling in a second contractor.
We’re also an approved emergency response contractor for the NYS Office of General Services, and certified by New York State as both a Minority Business Enterprise and Woman-Owned Business Enterprise. These aren’t self-declared titles they’re independently verified by the state.
The first call you make triggers a same-day response. We operate 24 hours a day, 365 days a year, and with trucks already staged in Suffolk County, arrival times are measured in minutes, not hours. Customer reviews confirm sub-one-hour arrivals including during late-night emergencies and nor’easters. When our crew arrives, the first thing we do is assess the full scope: where the water came from, what category of contamination you’re dealing with, and what’s been affected beyond what you can see.
From there, industrial extraction equipment removes standing water, and the drying phase begins with commercial-grade dehumidifiers and air movers positioned to pull moisture out of the structure not just the surface. Moisture readings are taken throughout the process, not just at the end. In Stony Brook homes with finished basements, that means checking behind drywall, under flooring, and inside wall cavities where water migrates silently.
If the assessment turns up mold which is common in homes that sat with water for even 24 hours we handle that under the same contract with the same licensed team. If the flood disturbed materials in a pre-1978 home, our asbestos and lead certifications are already in place. Once the structure is confirmed dry and safe, permitted reconstruction work begins under our Suffolk County General Contractor license. One team, one process, start to finish.
Ready to get started?
The flooded basement cleanup service we deliver in the Stony Brook University area is built around what’s actually in these homes not a checklist written for new construction in a different state. Most homes here were built between the late 1950s and mid-1970s. That means original sump pump systems, aging foundation seals, and a high likelihood of asbestos-containing materials and lead paint in the existing structure. Every job starts with an honest assessment of what’s there before any work begins.
Our full scope of service includes emergency water extraction, structural drying with industrial dehumidification equipment, moisture monitoring throughout the drying process, mold assessment and NYS-licensed remediation where needed, and asbestos and lead handling under active USEPA and NYS DOL certifications when the assessment requires it. For homes near the harbor, West Meadow Beach, or the Avalon Park corridor areas that took the hardest hit during the August 2024 flooding we give specific attention to groundwater intrusion, because the water table in that zone stays elevated long after the surface appears dry.
Reconstruction and permitted repairs are completed under our Suffolk County General Contractor license, which means you don’t need to find a separate contractor to close the walls after remediation. The Town of Brookhaven requires permits for structural repairs following water damage, and we pull those permits directly. Insurance documentation is prepared in the format adjusters require, and billing goes directly to your carrier where coverage applies.
It depends on what caused the flooding, and this is where a lot of Stony Brook homeowners get caught off guard. Standard homeowners insurance typically covers sudden water damage from internal sources a burst pipe, a failed water heater, an appliance malfunction. What it usually does not cover is water that enters from outside the home, which includes groundwater seeping through foundation cracks, surface water from a storm event, or the kind of catastrophic flash flooding that hit the North Shore in August 2024.
Flood coverage in the traditional sense comes through FEMA’s National Flood Insurance Program, which is a separate policy with its own waiting period and coverage limits. Data from Newsday confirms that in northern Suffolk County communities like Stony Brook, very few homeowners had purchased flood insurance as of 2022 meaning many residents discovered their gap in coverage during an active emergency. We document damage in the format insurance adjusters require and bill your carrier directly where coverage exists. If there’s a gap, we’ll tell you clearly and give you a transparent estimate so you know exactly what you’re working with.
Mold can begin colonizing within 24 to 48 hours of a flood event. By 72 hours, active growth behind walls, under flooring, and inside insulation is likely and at that point, what started as a water damage job has become a mold remediation job on top of it. This timeline is the documented basis of IICRC S500, the industry standard that insurance adjusters use when evaluating whether a claim was handled correctly.
In Stony Brook specifically, the risk is compounded by the area’s naturally elevated water table. Even after visible water is removed, moisture can persist in the substructure of a 60-year-old home for days feeding mold growth that won’t become visible until weeks later. The only way to confirm a basement is actually dry is with calibrated moisture meters and thermal imaging, not a visual check. We take readings throughout the drying process and don’t close the job until the numbers confirm the structure is dry, not just the floor.
Yes, and it’s one of the most important questions to ask before any restoration work begins in a pre-1978 home. Homes built in the 1960s and early 1970s commonly contain asbestos in pipe insulation, floor tiles, ceiling tiles, and exterior materials. When a flood event saturates these materials crumbling pipe wrap, waterlogged ceiling tiles, damaged wall finishes it can disturb asbestos fibers in a way that creates a genuine health hazard.
Most water damage contractors are not licensed to handle asbestos. New York State requires a NYS Department of Labor Asbestos Contractor License to legally perform abatement work, and most restoration companies don’t hold it. We do. If the initial assessment of your Stony Brook home turns up asbestos-containing materials in a flood-affected area, the work doesn’t stop and hand off to a separate vendor it continues under the same licensed team. The same applies to lead paint, which is equally common in homes of this era and subject to EPA’s Lead RRP rules whenever renovation work disturbs it.
The honest range for professional flooded basement cleanup runs from roughly $2,000 on the low end for a straightforward clean water loss with limited damage, up to $8,000 or more for a larger loss with structural drying, mold remediation, and reconstruction. Most homeowners in the Stony Brook area end up somewhere in the middle of that range, around $4,000 to $6,000, depending on the size of the basement, the category of water involved, and how long the water sat before professional extraction began.
What pushes costs higher is delay. Waiting past the 48-to-72-hour window before calling a professional typically adds $2,000 to $8,000 in mold remediation costs on top of the baseline cleanup. In Stony Brook homes with finished basements which are common given the area’s housing stock and home values averaging around $680,000 the cost of replacing saturated drywall, flooring, and insulation adds another layer. We provide transparent, line-item estimates before work begins, and handle insurance billing directly where coverage applies. There are no surprise charges after the fact.
The August 2024 event was an extreme rainfall event that brought nearly 10 inches of rain to the Stony Brook area in a matter of hours far beyond what the area’s drainage infrastructure was designed to handle. The Mill Pond at Avalon overflowed, Harbor Road collapsed, and water from the pond reached Long Island Sound for the first time since 1910. Suffolk County Fire, Rescue and Emergency Services responded to more than 320 storm-related calls between 10 PM and 5 AM that night.
The flooding wasn’t just surface water. The combination of intense rainfall, an already-elevated water table, and saturated ground meant that water entered homes from multiple directions simultaneously through foundation cracks, through window wells, and in some cases directly through basement walls under hydrostatic pressure. Stony Brook University’s Mendelsohn dormitory complex had 4 to 6 feet of water in its basement, and approximately 150 students were displaced. For homeowners in the harbor corridor and near Avalon Park, this event demonstrated what the area’s flood risk actually looks like when conditions align. Stony Brook experienced similar dormitory flooding during Hurricane Ida in 2021.
For a very minor, clean water event a small pipe drip that you caught within an hour, on a concrete floor with no finished walls a DIY approach might be manageable. But for anything beyond that, the risks of doing it yourself in a Stony Brook home are real and worth understanding before you decide.
The biggest issue isn’t the visible water it’s what you can’t see. Moisture behind finished drywall, inside wall cavities, and under subfloor material won’t dry with a shop vac and box fans. It stays there, and within 48 hours it starts feeding mold. In a home built in the 1960s, DIY cleanup also carries the risk of disturbing asbestos or lead-containing materials without realizing it, which creates a health and legal liability that’s significantly more expensive to resolve after the fact than it would have been to handle correctly from the start. Beyond the physical risks, a DIY cleanup that doesn’t produce proper moisture documentation can result in a denied insurance claim because adjusters want to see that remediation was performed to a professional standard. For Stony Brook homeowners protecting a home worth $600,000 or more, the math on professional cleanup versus DIY risk isn’t a close call.
Local Resources
Useful Links
