Flood First Aid

Sewage backup cleanup in Hackensack, New Jersey

When a shared building drain blocks, the waste of every unit above comes out of the lowest fixture. Here the ground-floor tenant is the one who pays the price first.

Find out who to call in Hackensack

Answer a few questions about what happened. You get the safety steps and the right trade whether or not you leave contact details.

Two referral lines cover this area. We have not vetted an individual company in Hackensack, and we will not route you to one whose coverage and registration we have not checked.

A pipe, water heater, sump pump or drain

Something inside the building failed and the water needs stopping.

Storm water, flooding or a soaked building

Water came in from outside, or the structure is wet and needs drying.

Not sure which you have? Answer a few questions and we will tell you. These are referral lines: they connect you to a company in the network, not to one this site operates or has inspected.

We are a free matching service, not a restoration contractor. Calls and requests are connected to independent providers.

What is actually going on

Sewage backup happens when waste water cannot leave a building and reappears at the lowest opening — a floor drain, a ground-floor toilet or a bathtub. In a single house, the blockage is somewhere between the house and the street sewer and only affects that household. In Hackensack, where about 63 per cent of homes are rented and much of the housing is apartment buildings and multi-family houses, the drain line is often shared. A blockage in the building main means that every flush and shower on the floors above sends water towards the lowest unit, which is usually a ground-floor garden apartment or a basement unit. The person dealing with sewage on the floor is therefore rarely the person who caused it or who can fix it. The building owner, managing agent or association is responsible for the shared drain, the plumber who clears it and the remediation of common areas. Tenants need to stop using their own water, keep away from the contamination, and report immediately in writing so the building can warn other residents to stop using drains too.

What to do right now

  1. Stop using water and tell your neighbours to stop

    In a shared building, every unit’s drains feed the same line. Ask management to notify residents until the line is cleared.

  2. Leave the room and close the door

    Sewage is a health hazard. Keep children and pets away, and do not try to mop it up without waterproof gloves and boots.

  3. Report it in writing, urgently

    Phone the superintendent or managing agent, then follow up with a message, time and photographs. A sewage backup is a habitability issue.

  4. Photograph your belongings and floor

    Before anything is removed, record what was affected. Contaminated soft furnishings will almost certainly need to be thrown away.

Safety first

Before you go in

Do not use household vacuums or fans on sewage-contaminated areas; they spread it.

Before you go in

Keep anyone pregnant, very young, elderly or with a weakened immune system out of the affected unit until it has been cleaned and disinfected.

Warning signs worth acting on

  • Gurgling in a ground-floor toilet or tub when someone upstairs runs water.
  • A sewage smell in a shared basement, laundry room or ground-floor corridor.
  • Slow drains in several ground-floor units at the same time, pointing to the building main rather than one unit.
  • Water rising in a basement floor drain during heavy rain.
  • Previous backups in the same unit, which suggest a recurring problem in the building’s line that has not been properly fixed.

Who you should call, and why

In Hackensack apartment buildings and multi-family rentals, the landlord, managing agent or association arranges the plumber or drain specialist for the shared line and the sewage remediation contractor for the cleanup. Tenants report, document and contact their own insurer. Owners of single-family houses call a plumber to clear their own lateral and a remediation contractor for the cleanup.

  • Plumber or drain specialist

    Clears the building main or lateral and can camera-inspect the line to find a recurring cause.

  • Sewage cleanup contractor

    Removes contaminated materials, disinfects and dries to the IICRC Category 3 approach.

  • Water-damage restoration contractor

    Dries the structure once contaminated material is out and records readings for each affected unit.

What a professional normally does

  1. Clears and inspects the line

    A drain specialist clears the blockage and, if backups recur, runs a camera to find root intrusion, a collapse or a belly in the line.

  2. Sets up containment

    Plastic barriers and controlled airflow keep contamination from spreading into corridors and other units.

  3. Removes contaminated materials

    Carpet, pad, lower drywall and soaked contents are removed and bagged; hard surfaces are cleaned and disinfected.

  4. Dries and verifies

    Moisture readings confirm the structure is dry before reconstruction, with logs for the building and for each unit.

Before you let anyone start work

Most disputes with a restoration company start with something that was not agreed in writing on the first day. These take a few minutes, even in an emergency.

  • Get a written scope and estimate before work starts, with the drying and any rebuild as separate documents.
  • Look up the company’s New Jersey contractor registration yourself, and ask for proof of liability insurance.
  • Ask who will be in your home, and whether any of the work is subcontracted.
  • Read any authorisation or assignment-of-benefits form before you sign it.
  • Photograph your belongings before anything is moved, and ask for an inventory of anything taken away.

All twelve questions to askWhat we check before listing a provider

What drives the cost

We do not publish prices. In a multi-unit Hackensack building, the cost of a backup is mostly about how many units and common areas were contaminated.

  • The number of units and common spaces that took sewage.
  • How much porous material — carpet, drywall, furniture — was contaminated.
  • How long the sewage sat before cleanup began.
  • Whether the building drain needs repair or replacement as well as clearing.
  • Access to occupied units and coordination with residents.

Insurance documentation checklist

Whether a sewage backup is covered is decided by the insurer concerned, and sewer backup is often a separate endorsement rather than part of a standard policy. In a Hackensack building the owner’s policy, the association’s master policy and each tenant’s renters policy may all be involved in different ways; keep your own record of your own losses.

  • Your written report to management, with time and photographs.
  • Photographs of the affected floor, fixtures and belongings before cleanup.
  • A list of discarded items with approximate purchase dates.
  • Your renters or unit-owner declarations page, checking for any water or sewer backup endorsement.
  • Receipts for temporary accommodation if the unit was uninhabitable.
  • Any notice from management about the cause and repair of the building line.

Local context

About 63 per cent of Hackensack’s occupied homes are rented, according to the US Census Bureau, and much of the housing is garden apartment complexes, multi-family houses and mid- and high-rise buildings that share drain lines. In those buildings a blocked main sends waste from every unit above into the lowest fixture, so ground-floor tenants are usually the ones who discover a backup that only building management can fix.

Source: Bergen County 2026 Multi-Jurisdictional Hazard Mitigation Plan, Table 4.6-1; US Census ACS 2020-2024 5-Year Estimates

Common questions

Sewage came up in my ground-floor apartment. Is it my fault?

Almost certainly not. In a building with a shared drain, a blockage sends everyone’s waste to the lowest point. Report it immediately and in writing; clearing the shared line and cleaning up are normally the building’s responsibility.

Can I stay in the apartment during cleanup?

Not in the contaminated area, and possibly not at all if the only bathroom is affected. Ask management what arrangements they are making, keep receipts for any costs, and contact your renters insurer about extra living expenses.

The backup keeps happening. What can I do?

Report each event in writing with photographs so the pattern is on record, and ask management whether the line has been camera-inspected. If a landlord is not addressing a recurring habitability problem, the city’s code enforcement office can explain the process.

We are a free matching service, not a restoration contractor. Calls and requests are connected to independent providers.