Water Damage Restoration in Jericho, NY

When Water Gets Into a Jericho Split-Level, It Doesn't Stay Where You Can See It

The 1960s split-levels and ranch homes that define Jericho’s residential neighborhoods hide water damage well — until it becomes a mold problem your family lives with. We find it, stop it, and dry it out completely before that happens.

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.

Water Damage Repair in Nassau County

What Changes When the Water Is Actually Gone

There’s a difference between a basement that looks dry and one that actually is. In Jericho’s post-war ranch and split-level homes — most of them built in the 1950s and 60s — water doesn’t just sit on the floor. It moves into the wall cavity, under the subfloor, behind the original drywall. Surface drying doesn’t reach any of that. What you can’t see is exactly what turns into a mold problem three weeks later.

When restoration is done right, you get your home back the way it was — not a version of it with hidden moisture slowly working through the structure. That means moisture readings confirming every surface is within safe limits, not just a crew packing up equipment because the floor feels dry. For a home worth close to a million dollars in this zip code, that distinction matters more than most people realize until it’s too late.

Families in Jericho moved here to invest in something — the schools, the neighborhood, the stability. Water damage that isn’t fully addressed threatens all of it. The indoor air quality your kids breathe every day, the structural integrity of the home you’ve built equity in, the insurance claim you need documented correctly — those outcomes only happen when the job is done completely, not quickly.

Water Restoration Companies Serving Jericho, NY

Locally Owned on Long Island, Not a Franchise Routing Your Call Away

We’re a locally owned Long Island restoration company. When you call, you reach the team doing the work — not a corporate dispatch system deciding which available crew is closest. That matters when your basement is flooding at 11pm and you need someone who knows Jericho and Nassau County, not someone who just got assigned your zip code.

We’ve worked throughout Jericho and the surrounding communities — Syosset, Hicksville, Woodbury — long enough to understand what these homes do when water gets in. The housing stock here is older, the basements are finished, and the plumbing in a lot of these houses hasn’t been replaced since the Eisenhower administration. We know what that means for a water damage job, and we show up prepared for it.

We’re IICRC certified, fully licensed under New York’s Mold Law, and we work directly with your insurance carrier from first call through final documentation. No handoffs, no confusion about who’s responsible for what.

Green Island Group Employees

Emergency Water Damage Restoration Process Jericho

No Guesswork — Here's Exactly What Happens When We Arrive

The first thing we do when we arrive is assess — not assume. We use thermal imaging cameras and calibrated moisture meters to find water that isn’t visible to the eye. In Jericho’s older homes, that step is critical. Water that enters through a foundation seep or a failed sump pump during a nor’easter doesn’t stay where you can see it. It travels, and we need to know where before we do anything else.

Once we’ve mapped the moisture, we extract standing water and set up industrial-grade drying equipment — air movers and desiccant dehumidifiers positioned based on the actual moisture readings, not just wherever they fit. We monitor those readings throughout the drying process, typically over several days, and we don’t sign off on the job until every reading is within the safe range defined by IICRC S500 standards. If mold remediation is needed, we’re licensed under New York State’s Mold Law to handle it — or to coordinate a licensed assessor if that’s the appropriate next step.

Throughout the job, we’re also building your insurance documentation. Scope of work, moisture logs, photos, materials removed — everything your adjuster needs to process the claim. For homeowners dealing with the Town of Oyster Bay Building Department on any structural repairs that require permits, we can help you understand what that process looks like so nothing gets missed on the back end.

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Water Damage Restoration Service in Jericho, NY

What's Actually Included When We Take the Job

Water damage restoration isn’t one thing — it’s a sequence. Emergency water extraction, structural drying, moisture monitoring, antimicrobial treatment, and full insurance documentation. Every job includes all of it. There’s no stripped-down version that skips the moisture monitoring because it adds time, and there’s no upsell conversation halfway through the job.

For Jericho homeowners specifically, a few things come up consistently. Finished basements are common in this housing stock, and when they flood, you’re dealing with damaged living space on top of structural water intrusion — drywall, flooring, insulation, personal property. We scope all of it, document all of it, and work with your carrier to make sure the full picture is captured in the claim. We also see a lot of burst and failed pipe situations here in winter — Nassau County’s freeze cycles hit the uninsulated spaces in these older homes hard, and a pipe that lets go inside a wall can saturate framing before anyone notices. That’s a different job than a basement flood, and we approach it differently.

If mold is found or suspected, we don’t guess. We’re licensed under New York State’s 2016 Mold Law for both assessment and remediation, which means the work is legally compliant and your insurance coverage stays intact. That’s not something every restoration operator working in this area can say.

Green Island Group Corp fleet of trucks ready for construction, demolition, and restoration services

Does homeowners insurance cover water damage restoration in Jericho, NY?

It depends on the source of the water. Most standard homeowners insurance policies in New York cover sudden and accidental water damage — a burst pipe, a washing machine line that fails, an HVAC leak. What they typically don’t cover is flooding from outside the home, which falls under separate flood insurance, or damage that resulted from long-term neglect, like a slow leak you knew about and didn’t address.

For Jericho homeowners, the most common covered scenarios we see are burst pipes during winter freeze events, appliance failures, and water heater leaks in older homes where the unit was overdue for replacement. The key is documentation. Insurance carriers want moisture readings, photos, a clear scope of work, and a timeline. We handle all of that from the moment we arrive, so your claim is built correctly from the start rather than pieced together after the fact. If there’s any question about what your policy covers, we can walk you through what we’re seeing on-site before the adjuster gets involved.

The EPA and IICRC both document mold growth beginning within 24 to 48 hours of water intrusion under the right conditions — and Long Island’s summer humidity creates exactly those conditions. In Jericho, where a lot of homes have finished basements with original drywall from the 1960s, moisture that gets inside the wall cavity has everything it needs: an organic food source, warmth, and humidity. You won’t see it from the outside for weeks, sometimes months.

That’s why the timeline matters so much. A basement that flooded during a heavy rain event on a Thursday night and gets professionally dried by the weekend is a very different situation than one that sat wet for five days while someone waited to see if it would dry on its own. The longer the moisture sits, the deeper it moves into the structure, and the more likely you’re looking at mold remediation on top of water restoration. Fast response isn’t just about convenience — it’s about keeping a manageable job from becoming a much larger one.

The most common causes we see in Jericho fall into a few categories. Sump pump failure is at the top of the list — a lot of these homes have sump systems that were installed decades ago and haven’t been serviced or replaced. When a heavy storm hits and the pump fails, water comes in fast. Foundation seepage is another one, especially in homes with original mid-century waterproofing that’s long past its effective life. Window well drainage that’s clogged or undersized also causes problems during heavy rain events, and localized flooding during major storms affects drainage throughout the Jericho area.

Prevention starts with knowing what you have. A sump pump that’s more than seven to ten years old should be tested and probably replaced. Foundation cracks should be sealed before the spring rain season. Window wells need clear drainage. None of that is expensive relative to what a flooded finished basement costs to restore. If you’ve already had water in the basement and you’re not sure how it got in, that’s worth figuring out before the next storm — we can assess the entry points as part of the restoration process.

The drying phase alone typically takes three to five days for most residential jobs, though that range shifts depending on how much water was involved, how long it sat before we arrived, and what materials are affected. A finished basement with drywall, flooring, and insulation takes longer to dry than an unfinished utility space, because there are more layers for moisture to move through and more surfaces that need to reach safe readings before the job is complete.

In Jericho’s older housing stock, we sometimes find that water has traveled further than it initially appeared — into adjacent wall cavities, under flooring in connected rooms, or into structural framing that’s been absorbing moisture for longer than the homeowner realized. When that happens, the timeline extends because we follow the moisture wherever it went, not just where it was obvious. The full restoration process — including any demolition of unsalvageable materials, drying, and rebuilding — can run two to four weeks for a significant loss. We give you a realistic timeline at the start of the job, not an optimistic one that changes every day.

Jericho is an unincorporated hamlet within the Town of Oyster Bay, which means building permits and code compliance for any structural repair work run through the Town of Oyster Bay Building Department — not a village or city office. Whether you need a permit depends on the scope of what’s being repaired. Straight mitigation work — drying, extraction, removing damaged materials — generally doesn’t require a permit. But if the restoration involves rebuilding walls, replacing structural framing, modifying plumbing, or making changes to electrical systems, you’re typically looking at a permit requirement.

This is worth knowing upfront because unpermitted structural work can create problems when you go to sell the home or file a future insurance claim. We can help you understand where the line is for your specific job and what the Oyster Bay permit process looks like if it applies. We’ve worked through this process with homeowners in Jericho and the surrounding Oyster Bay Town communities enough times to know what to expect and how to keep the project moving without unnecessary delays.

New York State’s Mold Law, which took effect in January 2016, requires separate licenses from the New York State Department of Labor for mold assessment and mold remediation. These are two distinct licenses, and a company needs both to legally perform the full scope of mold-related work that often accompanies water damage restoration. A lot of restoration operators working in Nassau County — including in Jericho — don’t hold one or both of those licenses. That’s not a minor technicality. Unlicensed mold work can void your insurance coverage and create legal exposure for you as the homeowner.

Beyond mold licensing, you want a company that carries IICRC certification — specifically Water Damage Restoration Technician (WRT) and Applied Structural Drying (ASD) credentials — because those are the standards insurance adjusters reference when evaluating whether the work was done correctly. Ask any company you’re considering to confirm their NY State mold licenses and their IICRC certifications before work begins. We hold both, and we’re straightforward about it. In a community where residents do their homework before making decisions, that’s not something you should have to chase down.