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When a sewer or drain backs up into your Merrick basement, the water carries raw sewage, bacteria, and pathogens that make the space unsafe within hours. ATC Restoration is a local Long Island crew based in Farmingdale, ready 24/7 to respond, contain the damage, and restore your home safely.
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Sewage backup in Merrick
Merrick sits on the South Shore of Nassau County where flat terrain and aging municipal sewer infrastructure can struggle to handle intense rainfall, sending wastewater back up through floor drains and toilets into finished basements. Even a few inches of standing sewage-contaminated water can render an entire lower level unsafe and unsalvageable without professional intervention.
Water that originates from a sewer backup is classified as Category 3 — the most hazardous class — because it contains harmful bacteria, viruses, and other pathogens that pose real health risks to anyone who enters the space. Exposure through skin contact, inhalation of aerosols, or touching contaminated surfaces can cause illness, which is why the area must be treated as a biohazard until fully remediated.
Drywall, insulation, carpet, padding, and wood framing that have absorbed Category 3 sewage water cannot be saved by drying alone — they must be removed and properly disposed of to eliminate the contamination source. Attempting to dry these materials in place traps pathogens and creates conditions where mold can begin growing within 24 to 48 hours.
Every service, every day
Burst pipes, appliance failures, flooded basements — extraction, structural drying, and documented moisture verification.
Learn more →SVC-02Emergency board-up, soot and odor removal, structural cleaning, and full rebuild — one company, start to finish.
Learn more →SVC-03Containment, removal, and independent clearance verification — done to standard, not sprayed and prayed.
Learn more →SVC-04Nor'easters, hurricanes, wind and flood — tarping, board-up, water mitigation, and rebuild, coordinated with your carrier.
Learn more →SVC-05Category 3 extraction, disinfection, and safe disposal with full PPE protocols — protecting your family from contamination.
Learn more →SVC-06Oil burner misfire coating your home in soot? Specialized cleaning for the messiest loss Long Island winters produce.
Learn more →SVC-07From flood cuts to finished rooms — the same company that dried your home rebuilds it under the same claim.
Learn more →SVC-08Fire, break-in, or storm-exposed structure secured fast, 24/7 — required by most policies to prevent secondary damage.
Learn more →SVC-09Inventoried, photographed, cleaned, and stored in our climate-controlled facility — every item documented for your claim.
Learn more →SVC-10Offices, retail, restaurants, multi-family — after-hours work and priority response agreements that minimize interruption.
Learn more →Coverage
North Merrick · South Merrick · Bellmore · North Bellmore · Freeport · Wantagh · Seaford · Levittown · East Meadow · Rockville Centre · Baldwin
// Near Merrick but not listed? Call — we cover all of Nassau County.
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Local questions
Sewage water is classified as Category 3 — also called black water — because it contains raw waste, bacteria such as E. coli, and other pathogens that can cause serious illness through skin contact or inhalation. Without proper personal protective equipment, commercial-grade disinfectants, and containment procedures, you risk spreading contamination to unaffected parts of your home. Professional remediation is the only way to confirm the space has been properly disinfected and is safe to re-occupy.
The process starts with containing the affected area to prevent cross-contamination, then extracting all standing water using truck-mounted or portable extraction equipment. All porous materials — drywall, insulation, flooring, and carpet — that absorbed sewage water are removed and disposed of in accordance with local regulations, followed by thorough disinfection of all remaining hard surfaces and structural components.
Coverage for sewer and drain backups depends on your specific policy — many standard homeowner's policies in New York exclude it unless you have added a sewer backup rider. We document everything your adjuster needs and bill your insurance company directly, so you are not left managing the paperwork on your own during a stressful situation.
Mold can begin to colonize wet porous materials within 24 to 48 hours under typical indoor conditions, and sewage-contaminated materials provide an especially rich environment for growth. This is one reason prompt extraction and removal of affected materials is so important — the longer contaminated drywall or flooring stays in place, the greater the risk of a secondary mold problem developing on top of the original sewage damage.
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More ATC services in Merrick
Water Damage Restoration in Merrick · Mold Remediation in Merrick · Sewage Cleanup in Merrick · Fire & Smoke Damage Restoration in Merrick
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