What should I do first during a sewage backup?

Stop using all water in the house, then get people and pets away from the affected area as the very first moves. Keep everyone clear of the contaminated water, ventilate the room, avoid direct contact, and then call a restoration professional for the actual cleanup.

Is a sewage backup in the house dangerous?

Yes, a sewage backup is a genuine health hazard. Raw sewage carries bacteria, viruses, and parasites that can cause serious illness through contact, ingestion, or inhalation. The IICRC classifies it as Category 3 water, the most contaminated type, which is why we treat it as a biohazard and use full protective equipment.

Can I clean up sewage backup myself?

We strongly advise against it. Household mops, towels, and vacuums spread contamination instead of removing it, and they leave behind bacteria you cannot see. Professional cleanup uses containment, extraction, and disinfection that a homeowner cannot safely replicate, which protects both your health and your home.

Why does sewage back up into the house?

Sewage backs up when the path out of your home is blocked or overwhelmed. Common causes include clogged drain lines, tree roots in the pipes, aging sewer infrastructure, and heavy rain that overloads the system. In New Orleans, intense storms and older drainage lines make backups a common problem here.

What items need to be thrown away after sewage backup?

Porous items soaked by sewage usually cannot be saved, including carpet, padding, drywall, insulation, upholstered furniture, mattresses, and any food or packaging the water touched. Sealed, non-porous items can often be disinfected and kept, and our crew sorts the salvageable from the ruined during cleanup.

Does insurance cover sewage backup cleanup?

It depends on your specific policy. Many standard homeowner policies exclude sewer backup unless you have added a separate endorsement for it, and flood coverage through the National Flood Insurance Program works differently again. We provide a documentation package built for claims, but you should confirm your exact coverage directly with your insurer.

How long does sewage backup cleanup take?

Several days in most cases, though the timeline depends on how much water spread, how many rooms are affected, and how long the area stayed wet. The process moves through extraction, removal of ruined materials, drying, and disinfection, and we provide a written scope of work up front so you know what to expect.

Who do I call for sewage cleanup in New Orleans?

Call a restoration company that handles biohazard cleanup, not a general handyman. We serve Greater New Orleans and Southeast Louisiana, including Orleans, Jefferson, St. Tammany, and the surrounding parishes, with same-day emergency response. Our crew is IICRC certified, licensed, and insured, and we manage the full job from extraction through sanitation.

Sewage Backup: What to Do in the First Hour

Name: Big Easy Remediation
Address: New Orleans, LA, US
Telephone: (504) 800-8897
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A sewage backup is a biohazard, so the first hour matters more than any other. Get everyone, including pets, away from the contaminated area, then stop using water and shut off power to wet rooms only if the panel is dry and reachable. Open windows for airflow, avoid all contact with the waste, and call a restoration professional. In New Orleans, fast action limits health risks and structural damage.

At Big Easy Remediation, we have walked New Orleans homeowners through this exact moment more times than we can count. A sewage backup is frightening, but the steps you take in the first hour shape how the entire cleanup goes.

This guide spells out sewage backup what to do, in plain order, so you can act fast without putting yourself in danger. We will cover the immediate moves, the things to avoid, and how the cleanup process actually works.

Raw sewage carries bacteria, viruses, and parasites that public health authorities link to serious illness, so this is never a job to take lightly. Contact us today to get a certified crew dispatched to your home the same day.

What to Do First in a Sewage Backup

The first thing to do during a sewage backup is to stop adding water to the system. Every flush, every running faucet, and every load of laundry pushes more waste back into your home through the lowest drains.

Turn off any taps that are running and tell everyone in the house to stop using sinks, toilets, tubs, and washing machines. If the backup started while an appliance was running, switch that appliance off at its source. In many older New Orleans homes, the main water shutoff sits at the street meter box rather than inside, so locating it ahead of an emergency saves you precious minutes when one hits.

In older New Orleans homes with aging drain lines and cast-iron or clay laterals, even a small amount of added water can move contamination from a bathroom into a hallway or living space within minutes. Pier-and-beam construction and low elevation mean the lowest fixtures often back up first, so the affected zone can grow fast. Holding the water still buys you time and keeps the affected area as small as possible until help arrives.

Get People and Pets Out of the Area

Sewage exposure is a health risk first and a property problem second, so clearing the space comes before anything else. Move children, older adults, anyone with a weakened immune system, and all pets to a clean part of the home well away from the backup.

Close interior doors to the contaminated room if you can do it without stepping into the waste. This simple barrier slows the spread of airborne contaminants and odor into the rest of the house. Keep family members out of the area entirely until the cleanup is finished, since standing water from a sewage backup is classified as Category 3 under IICRC standards, the most contaminated class, and it does not belong anywhere near bare skin.

Pets are especially hard to keep clear, since the smell draws them in and they track contamination across clean floors on their paws. Confine them to a closed room or carrier so they cannot wander back, and wash anyone who made contact before the spread reaches the rest of the home.

Below is a quick reference for those first sixty minutes, separating the moves that protect you from the moves that make things worse.

First-Hour Action	Do This	Avoid This
Water use	Stop all faucets, toilets, and appliances	Flushing to test if it cleared
People and pets	Move everyone to a clean area	Letting kids or pets near the water
Electricity	Cut breakers only if the panel is dry	Wading through water to the panel
Contact with waste	Keep skin, clothing, and tools clear	Mopping or touching it bare-handed
Airflow	Open windows in the affected room	Running central air through the space

Cut the Power Only If It Is Safe

Standing water and electricity are a dangerous mix, so power needs attention early. If your electrical panel is in a dry, easy-to-reach spot, switch off the breakers feeding the flooded rooms only.

Never walk through standing water to reach a panel, and never touch a breaker box with wet hands or wet feet. If the panel itself is wet, the path to it is flooded, or you feel any hesitation, leave the power alone and wait for a professional. In older homes around the city, panels are sometimes tucked into a back hallway or a low utility area that floods first, which is exactly when reaching them becomes unsafe.

Electricity travels through standing water, and a single wrong step near an energized circuit can turn a cleanup into a life-threatening emergency. Outlets, power strips, and plugged-in appliances near the floor are just as hazardous as the panel itself, so keep clear of anything energized that the water has reached. When the safe move is unclear, the right call is always to stay back and let trained crews handle the shutoff with the proper tools.

Open Windows and Ventilate the Space

Sewage gases build up quickly in an enclosed room, so airflow matters early on. Open any windows in or near the affected area to let fresh air move through and push contaminated air out.

Do not turn on the central heating or air conditioning to clear the smell. Forced air systems pull air from one room and blow it into others, which can carry bacteria and odor through ductwork into clean parts of the house. Shutting the system off at the thermostat also stops it from drawing moist, contaminated air across the coils where it can settle and linger.

If you have a window fan and can place it safely without standing in the water, point it outward to draw the bad air outside. In our humid New Orleans climate, indoor air often sits heavy with moisture, and that dampness feeds mold growth on drywall and wood within a day or two of a backup. Steady cross-ventilation slows that buildup, but it is only a stopgap until professional drying equipment takes over.

Avoid All Contact With the Sewage

The strongest instinct is to start cleaning, and that is exactly the urge to resist. Direct contact with the waste is exactly how the bacteria and viruses inside it reach you, which is why this is never a mop-and-bucket job.

Keep your skin, clothing, and household items out of the standing water entirely. Here is what to leave alone until a licensed biohazard crew arrives.

Porous items in the water: carpet, rugs, drywall, and upholstered furniture soak up contamination and usually cannot be saved
Food and packaging: anything touched by the water is unsafe and should not be salvaged
Your own cleaning supplies: household mops, towels, and vacuums spread the contamination rather than remove it
The HVAC return vents: keep waste away from them so it is not pulled into the air system

Our trained crews handle the extraction and disinfection with protective equipment, containment, and methods a household cannot match. You can review our full sewage backup cleanup service to see how that process protects both your health and your home.

Document the Damage for Your Claim

Once people are safe and you are clear of the water, take a few minutes to record what happened. Photos and short videos from a safe distance create the evidence your insurance company will want to see.

Capture the standing water, the affected rooms, and any damaged belongings before anything is moved or removed. Note the time you first noticed the backup and what you think caused it, such as heavy rain or a slow drain that finally failed. Wide shots that establish the whole room plus close-ups of individual ruined items give an adjuster the fullest picture, so capture both rather than one or the other.

We provide a full documentation package built for insurance, and we write a clear scope of work before any job begins. The National Flood Insurance Program and most policies treat sewage backup differently from general flooding, so keep your own records and confirm your specific coverage with your insurer. Holding onto receipts for any emergency steps you take, along with your own notes on dates and times, strengthens the claim further.

Call a Restoration Professional

The last step before help arrives is making the call that starts real cleanup. Restoration professionals bring the equipment, training, and disinfection process that turns a biohazard back into a safe, livable space.

We are IICRC certified, licensed and insured, with a local New Orleans crew that knows these homes and the parishes around the city. We offer same-day emergency response, so you are not left waiting with raw sewage in your house.

When you call, describe what you see, how much water is present, and which rooms are affected so we can arrive prepared. Our broader professional cleaning and sanitation services cover extraction, drying, and full sanitation, restoring the area to a healthy condition rather than just removing the visible mess.

Get Your Home Safe Again

The first hour of a sewage backup sets the tone, and you have done the hard part by keeping your family safe and the water still. At Big Easy Remediation, we handle the extraction, disinfection, and documentation so you do not have to face the biohazard alone.

Acting quickly limits both the health risk and the long-term damage to your home. Call us today to get a same-day emergency crew on the way to your New Orleans home.