What should I do first when water damage occurs in my Long Island home?

Your first priority is safety: turn off electricity to affected areas at the breaker if you can do so safely — never enter rooms with standing water if outlets or devices may be submerged. Next, shut off the water source if accessible (main shutoff is typically at the water meter or street). Then call a 24/7 emergency restoration service. Do not wait until morning — every hour of standing water increases the total restoration cost by an estimated 20% and mold begins growing within 24–48 hours.

Should I try to clean up water damage myself before the crew arrives?

Limit DIY cleanup to removing standing water with a mop or wet/dry vac if it is safe to enter the area — this can help reduce damage. However, do NOT: use household fans on saturated walls or floors (this spreads mold spores), remove saturated drywall (may release contaminated water), or use bleach on wet surfaces. Document everything with photos and video before touching anything. Professional crews bring industrial extraction equipment that removes far more water than consumer tools.

How do I document water damage for an insurance claim in New York?

Document before any cleanup begins: photograph every affected room from multiple angles, capture close-ups of visible damage and water sources, take video walkthroughs narrating what you see, note the time the damage started, and save receipts for any emergency purchases. Do NOT discard damaged items before they are documented and potentially inspected by an adjuster. Our team provides Xactimate-formatted damage reports that meet NYS insurance requirements.

Is burst pipe water damage covered by homeowners insurance on Long Island?

Yes — sudden and accidental burst pipe damage is typically covered by standard homeowner's insurance policies in New York. This is considered 'sudden and accidental' water damage, not flooding. However, gradual leaks, maintenance failures, or seepage are frequently excluded. Flood damage from outside water (storm surge, hurricane flooding) requires separate NFIP flood insurance. Call your insurer immediately and document everything before cleanup begins.

Emergency Water Damage on Long Island: What to Do in the First 60 Minutes

Q: How quickly do water damage restoration companies respond on Long Island?

Reputable Long Island restoration companies should respond within 60 minutes for true emergencies anywhere in Nassau or Suffolk County. LI Water Damage Experts guarantees a 60-minute response target, 24/7/365. Be wary of companies that cannot commit to a specific arrival window — delayed response significantly increases total damage and cost.

When water is pouring into your Long Island home, the clock starts immediately. According to the Institute of Inspection, Cleaning and Restoration Certification (IICRC), every hour of standing water increases the total restoration cost by an average of 20 percent. Mold can begin to colonize porous materials within 24 to 48 hours. The actions you take in the first 60 minutes determine how bad the damage gets — and how large the bill will be. This guide gives you a clear, minute-by-minute plan to follow right now.

For immediate emergency service anywhere in Nassau or Suffolk County, call LI Water Damage Experts around the clock. Our teams respond in 60 minutes or less.

Quick-Reference: The 60-Minute Water Damage Action Plan

Use this table as your emergency cheat sheet. Pin it, screenshot it, or bookmark this page.

Step	Time Window	What to Do	What NOT to Do
1 — Get Safe	Minutes 0-10	Kill power at breaker, avoid standing water near outlets, evacuate if flooding is severe or sewage is involved	Do not walk through standing water if power is still on; do not enter a flooded basement alone
2 — Stop the Source	Minutes 10-20	Shut main water valve, close supply valves at fixtures, call your plumber if needed	Do not leave a burst pipe running while you document; do not assume a shut-off valve will hold without checking
3 — Document & Call	Minutes 20-40	Photograph everything before moving items, call your insurance company, call a 24/7 restoration crew	Do not throw anything away yet; do not start repairs before the insurance adjuster is notified
4 — Begin Mitigation	Minutes 40-60	Remove standing water with a wet/dry vac, elevate furniture on foil or blocks, open windows if outdoor air is drier	Do not run HVAC fans to "dry things out" — this spreads contaminated air; do not use a regular household vacuum on water

Minutes 0-10: Is It Safe to Be in Your Home?

Your first priority is personal safety, not property. Electricity and water together are lethal. Before you touch anything, cut power to the affected areas at your breaker panel. If the panel itself is wet or you cannot safely reach it, leave the building and call the utility company — PSEG Long Island operates a 24-hour emergency line at 1-800-490-0025.

Floodwater in Nassau or Suffolk County carries serious health risks. According to the U.S. Environmental Protection Agency, floodwater routinely contains raw sewage, household chemicals, and bacteria that can cause illness within minutes of skin contact. Category 3 "black water" — sewage backup, stormwater overflow — requires full protective equipment and professional remediation. If the water is dark, has any odor, or entered from outdoors during a storm, treat it as contaminated.

What does "safe" look like before I re-enter a water-damaged room?

A room is safe to enter when the power is confirmed off at the breaker, there is no sewage smell, the ceiling shows no signs of sagging (which signals a dangerous structural water load), and the water source has been stopped. If any of those four conditions are not met, stay out and call professionals. Ceiling collapses from waterlogged drywall send roughly 10,000 Americans to emergency rooms each year.

Long Island homes built before 1980 — common in towns like Hempstead and Babylon — may contain asbestos in floor tiles or pipe insulation. Disturbing these materials in wet conditions releases fibers. If you suspect asbestos, do not walk through the area and notify your restoration crew before they begin work.

Minutes 10-20: How Do You Stop the Water Fast?

Stop the source immediately. Every gallon of additional water that enters your home adds roughly $3 to $6 in eventual restoration costs, based on IICRC S500 industry data. Finding and shutting off the supply is the single highest-return action you can take in the first 20 minutes.

Your main water shutoff valve is almost always located where the water line enters the house — typically near the front foundation wall in the basement or utility room. In many Long Island homes, there is also a shutoff valve at the street curb. A curb key (available at any hardware store) turns the street valve. If you do not know where your shutoff is, find it right now before an emergency happens.

What if the water is coming from outside — storm surge or heavy rain?

You cannot shut off a storm, but you can redirect it. If water is entering through basement windows or door thresholds, use sandbags, towels, or waterproof door barriers to slow the flow. Long Island's barrier island and South Shore communities — including Islip and Babylon — are especially vulnerable to rapid stormwater intrusion. Even reducing the inflow rate by 50 percent can cut total damage significantly.

If a burst pipe is the culprit, shut the valve for that specific fixture first (under the sink, behind the toilet) before going to the main. This keeps water pressure available for the rest of the house in case you need to call the fire department or flush a toilet during cleanup.

Minutes 20-40: Why Is Documenting Before Cleaning Up So Critical?

Do not move, throw out, or clean anything before you have photographic documentation. Insurance adjusters and restoration estimators work from evidence. A claim without documentation is a claim that gets underpaid. Two in three water damage claims on Long Island are initially undervalued when homeowners start cleanup before the adjuster is notified, according to public adjuster data from the New York State Department of Financial Services.

Walk every affected room with your phone camera. Shoot wide angles to establish context, then close-ups of waterlines on walls, damaged flooring, soaked belongings, and any structural issues. Note the time stamps — they establish when damage occurred, which matters for policy coverage decisions. Open your email and forward several photos to yourself immediately so they are backed up off-device.

When should I call my insurance company during a water emergency?

Call within the first hour, even if you are still managing the situation. Most standard homeowners policies in New York require "prompt notification" of losses. Waiting 24 hours or more to report a claim can give the insurer grounds to reduce or deny payment. When you call, provide the date and time the damage was discovered, a brief description of the source, and confirmation that you are taking steps to prevent further damage. For a full walkthrough of the claims process, see our water damage insurance claim guide for New York homeowners.

While you are on the phone with insurance, have your emergency restoration crew on the way. Restoration companies document damage professionally for insurance purposes and can often communicate directly with your adjuster. This speeds up claim approval and ensures nothing is missed.

What information do I need before calling a restoration company?

Have the following ready: your address and the best entry point, the source of the water (pipe burst, appliance, storm, etc.), an estimate of how many rooms are affected, and whether there is a sewage component. This lets the dispatcher send the right crew size and equipment on the first trip. Our guide to hiring a water damage company covers what to ask once they arrive.

Minutes 40-60: What Can You Safely Do Before the Crew Arrives?

Once safety, the water source, and documentation are handled, you can begin limited mitigation. Every action in this window should reduce water contact time with porous materials. Hardwood floors, drywall, and wood framing absorb water rapidly — after 24 hours of saturation, the IICRC classifies many of these materials as unrestorable and they must be replaced rather than dried.

If you have a wet/dry shop vacuum, use it to extract standing water from hard floors. A standard 16-gallon shop vac holds about 10 gallons of water and can remove several hundred gallons in an hour with repeated emptying. Do not attempt to vacuum carpet — wet carpet requires professional extraction equipment to reach the pad and subfloor beneath.

Should I run fans and open windows to dry things out faster?

Air movement helps — but only when the air moving through is drier than the materials you are trying to dry. On a humid Long Island summer day, outdoor air at 85 percent relative humidity will slow evaporation and accelerate mold growth. Check the outdoor humidity on your phone before opening windows. The ideal drying condition is indoor humidity below 50 percent. If outdoor humidity is higher than your indoor reading, keep windows closed and wait for the professional desiccant dehumidifiers that the restoration crew brings.

Do not run your HVAC system. Central air and forced-air heating systems distribute air — and mold spores — throughout your home. If water has contacted your ductwork or air handler, running the system can spread contamination to every room in the house. Turn the thermostat to "off," not "auto." Homes in Oyster Bay and Huntington with older forced-air systems are particularly vulnerable to cross-contamination through leaky duct connections.

What items should I move or elevate first?

Prioritize irreplaceable items: documents, photos, medications, electronics, and items of personal significance. Place wooden furniture legs on aluminum foil pads or small plastic blocks to prevent wicking. Move area rugs out of wet rooms — they retain moisture against the floor underneath and dramatically slow drying. Leave large furniture in place if moving it requires dragging across wet floors, as this can spread contamination further.

Your water damage restoration crew will bring industrial extractors, refrigerant and desiccant dehumidifiers, and high-velocity air movers that can dry a flooded room 10 to 20 times faster than household fans. The mitigation you do in this 20-minute window is a bridge — it limits damage until the right equipment arrives, not a substitute for professional drying.

After the First Hour: What Happens Next?

Once the restoration crew arrives, they will perform a moisture assessment using thermal imaging cameras and pin-type moisture meters to map exactly how far water has migrated — including inside walls and under flooring where you cannot see it. Invisible moisture is responsible for the majority of post-flood mold problems on Long Island, because homeowners believe an area is dry when the surface feels dry but the structure beneath is still saturated.

The IICRC S500 standard — the industry benchmark for water damage restoration — establishes drying goals by material class. Class 1 water damage (limited absorption) may dry in 3 to 5 days. Class 3 or Class 4 damage (saturated structure and materials) can require 5 to 10 days of continuous equipment operation. Understanding this helps you set realistic expectations and avoid the costly mistake of pulling equipment too early.

For detailed cost information on what the full restoration process typically runs, visit our water damage cost guide for Long Island. For guidance on basement flooding specifically — one of the most common emergency calls we receive — see our basement flooding guide for Long Island homeowners.

Frequently Asked Questions

How fast does mold grow after water damage on Long Island?

Mold spores are present in every home and can begin colonizing wet porous materials within 24 to 48 hours under normal conditions. Long Island's coastal humidity — average relative humidity of 68 to 72 percent year-round — accelerates this timeline. In warm months, visible mold growth can appear in as little as 12 to 18 hours on wet drywall or wood. This is why professional water extraction and drying equipment must be in place within hours, not days.

Is my water damage covered by homeowners insurance if it was from a burst pipe?

Yes, in most cases. Sudden and accidental water discharge from a plumbing failure is a standard covered peril under most New York homeowners policies. However, if the insurer determines that the pipe had been leaking slowly for weeks and the damage was due to neglect rather than a sudden event, coverage may be denied. Document the failure immediately, preserve any damaged pipe sections, and report the claim the same day. See our full insurance claims guide for step-by-step filing instructions.

Should I try to dry out my home myself instead of calling a restoration company?

For a minor spill on a hard surface — less than 10 square feet, no carpet or drywall contact, cleaned within minutes — DIY drying is reasonable. For anything involving more than a few gallons of water, carpet, drywall, wood flooring, or water that has been present for more than an hour, professional restoration is the financially smarter choice. DIY drying attempts that fail to remove hidden moisture are the leading cause of post-flood mold claims, which can cost $5,000 to $30,000 to remediate — far more than the original water damage restoration.

What is the single most important thing to do in the first 10 minutes?

Cut the electricity to the affected area at your breaker panel. Electrocution from flooded rooms kills dozens of homeowners in the United States every year. Nothing else you do in the first hour matters if you are injured before help arrives. Once power is confirmed off and the space is safe to enter, stopping the water source is your next highest priority.

How quickly can a water damage crew get to my Long Island home?

LI Water Damage Experts guarantees a 60-minute response time throughout Nassau and Suffolk County, 24 hours a day, seven days a week. We maintain crews and equipment staged across the Island — from Hempstead and Oyster Bay in Nassau to Huntington, Islip, and Babylon in Suffolk — so response times are consistent regardless of where you are located.

Dealing with water damage right now? Call LI Water Damage Experts for 24/7 emergency service. We respond in 60 minutes or less throughout Nassau and Suffolk County — certified, insured, and ready to protect your home from the moment we arrive. Do not wait. Every minute of standing water increases your bill and your risk. Call for immediate help now.