Demolition Contractor in Northwest Harbor, NY

When the Walls Come Down, Nothing Gets Left Behind

Full demolition and hazmat handling under one roof so your Northwest Harbor project stays on schedule, no matter what’s inside the walls.
Green Island Group Corp demolishing an old house to clear land for redevelopment or new construction

See What Our customers Are saying

Nancy Marano Silva
Nancy Marano Silva
I needed a professional consultation explanation of procedure for safe removal of Asbestos in my apartment complex. Without having an account yet, I was very impressed with the caring, knowledgeable and generous advice offered by Jessica, and will look forward to doing business in the future. Thank you so much! I feel much more informed about a sometimes scary endeavor. Peace. Nancy Silva Mineola, NY.
Mia Munoz
Mia Munoz
Used this company to clean up some water flood in my house. They were fast and easy to work with.very professional, Would recommend to anyone!
Nini Valle
Nini Valle
Great company, had a flood and they responded quickly and efficiently. Billed my insurance company directly. I highly recommend this company!
joe colapietro, jr
joe colapietro, jr
I had pipe freeze in my basement right before a snow storm and they made to within an hour to help start the clean up process. They we by our side throughout the entire process and even helped with the insurance company. They did such a great job with the cleanup, repair, remidiation, I contracted them to perform the repairs and finishes in the basement. They came with enough manpower and material to get the job done. Leo and Jessica were nothing but a pleasure to deal with!!
Cristian Arredondo c
Cristian Arredondo c
I had some water damage in my home and Green Island was able to take care of my issue quickly and effectively. I am very pleased with the work they did. They responded quickly and were very professional.
Michael M
Michael M
Outstanding service! From the office to the field crew everyone was friendly, helpful and responsive. I highly recommend Green Island Group.
Green Island Group Corp performing certified asbestos abatement in Nassau County residential or commercial property

Residential Demolition Service Northwest Harbor

Your Northwest Harbor Project Moves Forward No Surprises, No Stops

A lot of Northwest Harbor’s housing stock was built between 1970 and 1999. That means a meaningful portion of it was constructed before 1980 the era when asbestos-containing materials were still standard in flooring, insulation, roofing, and joint compound. When a contractor without abatement credentials hits that material mid-project, work stops. Sometimes for weeks. In a market where the renovation window between Labor Day and Memorial Day is everything, that kind of delay doesn’t just cost money it costs you the season.

We hold active NYS Department of Labor asbestos certifications and handle abatement in-house. There’s no second contractor to call, no project pause while you wait for someone else to get scheduled. If something turns up during demolition, it gets handled by the same crew already on-site.

Beyond asbestos, Northwest Harbor properties sit on a peninsula surrounded by Gardiners Bay, Three Mile Harbor, and Northwest Harbor itself. Coastal exposure is real here nor’easters and storm events have caused structural damage throughout the East Hampton area for decades. Whether you’re managing a planned teardown-rebuild or dealing with storm damage on a property you’ve been watching remotely, you need a contractor who can respond fast and handle the full scope. That’s exactly what we do.

Licensed Demolition Contractors Northwest Harbor NY

5,000 Projects In. Nothing Catches Us Off Guard.

We’re a Suffolk County-based demolition and environmental contractor with over 12 years of operation and more than 5,000 completed projects across Long Island and New York City. We’re not a Nassau County company extending our range east, and we’re not a general contractor who added demolition to the menu. This is what we do full-scope demolition, asbestos abatement, mold remediation, oil tank removal, and site preparation, all handled internally.

Northwest Harbor and the South Fork have their own pace, their own permit process, and their own expectations. The Town of East Hampton Building Department has specific requirements that differ from other Suffolk County jurisdictions clearing limitations, environmental assessments, asbestos survey documentation. We’ve worked in this regulatory environment before and manage the permitting process from start to finish.

With $2M+ in general liability coverage, active NYS DOL certifications, MWBE certification, and a 4.7-star rating backed by verified reviews, the credentials are there. But what actually matters to most clients is simpler: we pick up the phone, we show up when we say we will, and we don’t create problems on your property.

Industrial blowers used by Green Island Group Corp for water damage and flood restoration drying process

Demolition Specialists Northwest Harbor NY

From First Call to Clear Site Here's What to Expect

It starts with a site assessment. Before anything is quoted or scheduled, our team evaluates the structure its age, materials, condition, and what the scope of work actually requires. For properties in Northwest Harbor built before 1980, that assessment includes identifying any materials that may require abatement prior to demolition. This step isn’t a formality. It’s what prevents the mid-project discoveries that blow up timelines and budgets.

Once the scope is confirmed, we handle the permitting process with the Town of East Hampton Building Department. That includes the demolition permit application, project description, any required environmental documentation, and for properties on large wooded lots common throughout Northwest Woods compliance with the Town’s clearing limitation requirements. You don’t have to navigate that process yourself.

When the permit is in hand and utilities are confirmed disconnected, demolition begins. Depending on the project, that means full structural teardown, selective interior demo, or targeted removal of specific elements. Debris is removed and handled in compliance with NYS and USEPA environmental regulations particularly important given Northwest Harbor’s proximity to the protected waters of Gardiners Bay and Three Mile Harbor. When the site is cleared, you get a clean, documented handoff ready for whatever comes next.

Certified asbestos experts from Green Island Group Corp conducting safe abatement in Nassau County, NY

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Commercial Demolition Contractors Northwest Harbor NY

Every Scope Covered Residential, Commercial, and Everything In Between

We handle the full range of demolition work full structural teardowns, selective interior demolition, site clearing and preparation, and emergency response for storm-damaged or compromised structures. For Northwest Harbor, where the teardown-rebuild cycle is a well-established part of the Hamptons real estate market, full demolition and site prep is one of the most common project types. Buyers acquire older ranch houses and mid-century colonials on large lots, the existing structure comes down, and a new build goes up. That process requires a contractor who can manage the entire sequence cleanly.

On the environmental side, every project includes assessment for asbestos, lead paint, mold, and other hazardous materials before demolition begins. If any of those are present which is common in East Hampton-area properties built before 1980 abatement is handled in-house before structural work proceeds. There’s no subcontracting, no waiting, and no gap in accountability.

For seasonal property owners managing projects remotely, we also work directly with insurance companies when demolition is triggered by storm damage, water intrusion, or fire. That means you’re not coordinating between your contractor and your carrier from a distance we handle that communication on your behalf. Emergency response is available 24/7, which matters when a nor’easter hits your property in January and you’re not on-site to see it.

Green Island Group Corp renovating and restoring brick wall for structural integrity and aesthetic improvement

Do I need a demolition permit in Northwest Harbor through East Hampton Town?

Yes all demolition work in Northwest Harbor falls under the Town of East Hampton Building Department, not a village or city department. You’ll need a permit before any structural work begins, and the application requires a detailed project description, plans and specifications outlining the demolition method, and depending on the structure environmental documentation including an asbestos survey.

For properties on larger lots in Northwest Woods, the Town also requires a staked survey from a licensed surveyor showing clearing limitations before any Building Permit that involves site clearing is issued. This is a step that catches a lot of property owners off guard, especially those managing projects from out of town. We handle the full permit process, so you’re not navigating East Hampton Town’s specific requirements on your own. As of May 2024, Building Department fees in East Hampton Town increased your project budget should account for the updated fee schedule.

Under NYS Department of Labor regulations, a pre-demolition asbestos survey is required for any structure that may contain asbestos-containing materials. For Northwest Harbor specifically, this is a real and common concern the dominant housing construction period here is 1970 to 1999, and a significant portion of that stock was built before 1980 when asbestos was still widely used in flooring, pipe insulation, roofing materials, and joint compound.

The survey has to be conducted by a qualified inspector before demolition begins. If regulated materials are found above threshold quantities, licensed abatement must be completed before structural demolition can proceed and federal USEPA NESHAP notification requirements also apply. We hold active NYS DOL asbestos contractor certifications and handle both the survey coordination and any required abatement in-house. That means if asbestos is found, work doesn’t stop while you search for a second contractor it continues under the same team already managing your project.

For a standard residential teardown in the Northwest Harbor area, the physical demolition itself typically takes anywhere from one to five days depending on the size and complexity of the structure. What takes longer is everything around it permitting, asbestos survey and abatement if required, utility disconnection coordination, and site clearing and debris removal.

From initial assessment to cleared site, most full residential demolition projects in East Hampton Town run two to six weeks when permits and environmental work are factored in. For Northwest Harbor property owners working within the Hamptons renovation window trying to get work done before Memorial Day or after Labor Day this timeline matters a lot. Starting the process early, including permit applications and environmental assessments, is the single biggest factor in hitting your target completion date. We manage that sequencing from the beginning, which is the most reliable way to protect your schedule.

If hazardous materials are discovered during demolition whether that’s asbestos, lead paint, or mold work on the affected area stops until the material is properly assessed and abated. With a contractor who doesn’t have in-house abatement capability, that means calling a separate licensed company, waiting for their availability, coordinating two separate scopes of work, and absorbing the scheduling gap in between. In peak renovation season on the South Fork, that gap can stretch into weeks.

Because we handle abatement in-house, the response is different. Our team assesses the material, abatement is scheduled without bringing in an outside contractor, and demolition resumes once the area is cleared and documented. For properties in Northwest Harbor’s pre-1980 housing stock where encountering asbestos-containing materials is genuinely common, not a worst-case scenario having that capability under one roof isn’t a luxury. It’s what keeps your project moving.

Yes, and in a coastal community like Northwest Harbor, this comes up more than people expect. The peninsula sits between Gardiners Bay, Three Mile Harbor, and Northwest Harbor itself three bodies of water that leave properties directly exposed to nor’easters, tropical storm systems, and the kind of coastal weather events that have physically reshaped this area before. The Great Hurricane of 1938 altered the harbor mouth at Cedar Point. More recent storm events have caused structural damage throughout East Hampton Town that required emergency demolition before any restoration work could begin.

We offer 24/7 emergency availability and have a documented track record of rapid response including verified accounts of on-site arrival within an hour of a call. For seasonal property owners who aren’t on-site when a storm hits, that availability is critical. We also work directly with insurance companies when demolition is triggered by storm damage, handling the documentation and coordination that insurance claims require so you’re not managing that process remotely on top of everything else.

Residential demolition costs in the Northwest Harbor and broader East Hampton area typically range from $8,000 to $25,000 for a full structural teardown, depending on the size of the structure, the complexity of the site, debris volume, and whether hazardous materials abatement is required. Asbestos abatement, if needed, adds to that range but in Northwest Harbor’s pre-1980 housing stock, it’s a cost worth planning for upfront rather than discovering mid-project.

Permit fees through the Town of East Hampton Building Department are a separate line item and increased as of May 2024. Utility disconnection, site clearing on large Northwest Woods lots, and debris disposal are also factors that affect the final number. The most accurate way to understand your project cost is a site assessment before any work is scoped that’s where the real variables show up. We provide assessments and transparent scoping upfront, so the number you’re quoted reflects what the project actually requires, not an estimate that grows once work begins.