Is it safe to stay in house after sewage backup?

Author: Icie Cronin II  |  Last update: Wednesday, January 28, 2026

Immediate evacuation is recommended if sewage backup occurs in a home. Occupants should avoid contact with sewage-contaminated water and surfaces, as well as minimize exposure to indoor air contaminants by opening windows and doors for ventilation.

Can you sleep in a house with sewage backup?

Quickly handling sewage backups is important for everyone's safety. If left untreated, it can cause more health problems and damage to the house. It's not something you should ignore. Living in a house with sewage backup is very risky.

Is it safe to stay in a house with a sewage leak?

Sewage contains harmful bacteria, germs, and viruses that make any area with an active leak unsafe. The longer a leak is active, the more damage it does to your home — and the greater the risk of your family becoming sick from touching the sewage or breathing in contaminated air.

Is sewage backup a health hazard?

Sewage backups bring in dangerous bacteria, viruses, and waste. This poses a big risk to your health. It can cause problems like stomach bugs, skin issues, trouble breathing, and allergies. If your house is not safe because of sewage, get out right away.

How long does sewage contamination last in a house?

The drying out process can take several weeks in an enclosed area such as a basement or crawl space, and growth of microorganisms will continue as long as the humidity remains high.

This Pipe Can SAVE YOUR HOUSE FROM SEWAGE FLOODS! (Sewer Clean Out Pipe Explanation)

Can you get sick from breathing in sewage smell?

Though not entirely toxic, long exposure to sewer gas can cause serious respiratory problems. Enough of it can even cause symptoms of sewer gas poisoning. The most basic way of telling if you have a sewer gas leak is its smell.

How long does it take to get sick from sewage backup?

How Long Does It Take to Get Sick From Sewage Backup? If you have become sick due to contact with sewage, you will likely start to develop symptoms within 1 to 3 days. If your symptoms are very severe and last longer than two days, you should call your healthcare provider for help.

What to do if exposed to raw sewage in house?

FROM RAW SEWAGE

Wash your hands well with clean water and soap before you eat or smoke, after using the toilet, and after working. DO NOT touch your nose, mouth, eyes, or ears with your hands, unless you just washed them. Keep your fingernails short. Use a stiff soapy brush to clean under your nails.

Is it safe to stay in a house with sewer gas?

Answer: Only under extremely unusual circumstances. Although hydrogen sulfide is a toxic gas, it will not harm people at the concentrations that exist in a house with sewer gas odor problems. Studies have shown that hydrogen sulfide has a depressant effect on the central nervous system in concentrations above 150 ppm.

Is a sewer backup a biohazard?

Biohazard contaminants should be considered very dangerous as they can pose a serious health risk. Sewer backups and flood water are two common biohazard scenarios that can affect homes and businesses.

How to clean up after sewer back up?

Wash contaminated surfaces and objects with warm, soapy water and disinfect with a bleach and water solution made of no more than 1 cup of bleach per 1 gallon of water. For objects that would be damaged by bleach, use a home or laundry disinfectant. Make sure to read and follow label instructions. Do not use ammonia.

Does homeowners insurance cover sewage leaks?

Homeowners insurance may cover sewer line damage if it stems from something already included in your policy, like a fire or windstorm. Sewer line damage that is the result of wear and tear is excluded from home insurance coverage.

What are the side effects of exposure to raw sewage?

Most people exhibit no symptoms, and the diseases are of short duration. However, in severe infections symptoms can include high fever with head and body aches, stiff neck, muscle weakness, disorientation, tremors, convulsions and, in the most severe cases, coma or paralysis.

What to do if the sewer backs up in the house?

Contact a Professional Plumber

A sewer backup is not a DIY situation. You need to call a professional plumber who specializes in sewer line repairs.

Can I sue the city for sewer backup?

Tree roots can grow into and obstruct the sewer lines; or extraordinary amounts of rainfall can infiltrate the system and overload it. The courts have made it clear that the city is liable for sewer back-up damages if, and only if, the city's negligence causes damages.

Is it safe to live in a house with water damage?

Take steps to protect your health and safety when reentering your flooded home. When returning to a home that's been flooded after natural disasters such as hurricanes, tornadoes, and floods, be aware that your house may be contaminated with mold or sewage, which can cause health risks for your family.

Is it bad to breathe in sewage smell?

With higher concentrations of sewer gas, the health effects can be severe and may include loss of consciousness, respiratory distress, coma, or even death. Additionally, if someone already has a respiratory illness, even minor exposures to sewer gas can cause a serious health issue.

What to do if you get sewage in your mouth at home?

Rinse your mouth out and clean your teeth. Rinse with a good mouthwash and also make sure you drink 8 glasses or fluid - preferably water. If you begin to feel sick or not well in any way at all, or develop a fever get yourself to an ER and explain what happened.

How long does sewage contamination last in a house after?

In an untreated situation, sewage contamination can persist for weeks or even months, posing a health risk to your family. Sewage contains harmful bacteria, viruses, and parasites that can cause a variety of illnesses, including: Gastrointestinal issues (diarrhea, vomiting)

What are the symptoms of sewage sickness?

Some common signs and symptoms associated with sewage-related illnesses include: Gastrointestinal distress: This can include diarrhea, nausea, vomiting, stomach cramps, and loss of appetite. These symptoms may indicate an infection caused by bacteria such as Salmonella or Campylobacter.

Can you stay in a house with sewer back up?

Sewage backup is a serious issue that requires immediate attention and professional intervention. Due to the health hazards associated with sewage contamination, it is not safe to stay in a house with sewage backup.

What are the symptoms of sewer poisoning?

Irritated eyes, nose, throat, and respiratory system, including tearing of eyes, cough, or shortness of breath. Effects may be delayed. Severe eye and respiratory irritation such as coughing and difficulty breathing. These symptoms may be accompanied by headache, dizziness, nausea, vomiting, and more.

Is sewage backup an emergency?

Backed up sewer lines, line breaks, sewage odors, and overflowing manholes are considered an emergency. When a sewage backup is occurring, do not use your toilet, shower, washing machine, or other appliances that send water down a drain.

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