Is sewage smell an emergency?

Author: Anahi Rohan III  |  Last update: Friday, July 10, 2026

While not always an emergency, persistent smells could indicate a sewer gas leak or a backup in the sewer system.

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

In extremely high concentrations, hydrogen sulfide can cause loss of consciousness and death. Suffocation: High concentrations of methane in enclosed areas decrease the amount of oxygen in the air and can cause suffocation. Symptoms of a lack of oxygen include: Dizziness.

Is sewer gas smell an emergency?

If you smell sewer gas in your home that is dangerous. All sinks, toilets and bathtubs have a water seal (called a P-trap) to keep the gases from venting into your home. These sewer gases can kill you and are dangerous. So you should get a licensed plumber involved.

Should I call the fire department if I smell sewer gas?

If the smell is pronounced, call the emergency number. They will get your information and alert the necessary responding agencies. If the smell is indoors, open some doors and windows to ventilate the space, evacuate the building and then call 911 (or 999).

How long does it take for sewer gas to make you sick?

Sickness from sewage can start in 24-48 hours, but it can take longer.

How to clean a sewer pipe in 60 seconds

Is it safe 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.

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

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.

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 are the symptoms of sewer gas 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.

How to tell where sewer smell is coming from?

Where is the odor coming from? Check your home's drains, toilets, and plumbing fixtures for any signs of leaks or damage. Look for cracks, loose connections, or broken seals allowing sewer gas to escape. Additionally, inspect your sewer vents on the roof or outside your home for any obstruction or damage.

Can sewer gas make you sick in your sleep?

Consequently, you'll experience symptoms related to lack of oxygen, such as dizziness, headache, nausea, and unconsciousness. At higher sewer gas levels or low oxygen concentration (less than 12%), exposure to methane gas may lead to death without warning. Yes, sewer gas can kill you in your sleep.

Why does sewer gas smell come and go?

Due to the frequent movement of water and waste through your plumbing system, and the varying use of different drains throughout the day, some issues can fluctuate. This means that you may only notice the symptoms of a problem, like a sewage smell, at certain times of the day or in response to certain action.

Can sewer gas start a fire?

So if sewer gas leaks into your property and concentrations of methane build up, you can inadvertently cause a serious explosion or start a fire, by lighting a match.

Is it safe to stay in a house that smells like sewage?

Along with being unpleasant, a strange sewage smell could be hazardous for your health. One of the primary gasses in sewage is methane, and if it accumulates in large amounts, it can become highly flammable. If untreated, sewage gasses can leak methane into your home.

Why does my house smell like sewage but no leak?

Clogged Drains

Clogs in your sinks, showers, and toilets can lead to a buildup of organic matter, which decomposes and emits a sewer-like smell. Regular cleaning and maintenance can prevent these clogs from forming.

Who to call for sewer smell in house?

Causes of Sewer Gas Smell

Sewer gas smells could also be coming from your pipes if they weren't installed properly or are damaged. A local plumbing professional can assess the problem and provide solutions, but here are some more common causes of septic odors in your home: Ice buildup on plumbing pipes.

How long does it take for sewer gas smell to go away?

If the sewer gas odor was caused by a dry P-trap, the smell should dissipate almost immediately. If you have any plumbing fixtures you rarely use, you can also easily prevent them from smelling like sewer gas by making sure to put some water down the drain every week or two.

How to neutralize hydrogen sulfide gas?

Chemical Scrubbing Techniques

These methods involve using chemicals like sodium hydroxide or amines to react with and neutralize hydrogen sulfide. The process effectively removes high concentrations of H2S, making it ideal for applications in petrochemical plants and refineries.

Can you stay in a house with sewer back up?

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.

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.

What are the symptoms of sewage sickness?

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.

Is a sewage leak an emergency?

If you smell gas at any time, it's an emergency. It's an emergency if: Sewage is backing up into the home from one or more plumbing fixtures. Sewage in the home poses a serious health risk to humans and pets. It's not an emergency if: The drains are slow but do clear.

Does insurance cover sewage back-up?

While homeowners insurance protects you against some forms of unexpected water damage, water back-ups and sump pump overflows are usually not covered. You may purchase optional water back-up coverage that may pay for damages in the case of sewage back-up or a malfunctioning sump pump.

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