Why Does The Outside Of My House Smell Like Sewer

Why does the outside of my house smell like sewer?

There could be several reasons why the outside of your house smells like sewer:

  • Blocked or damaged sewer lines: If there is a blockage or damage in the sewer lines near your house, it can cause sewage to leak out and create a foul smell.
  • Sewer vent issues: Sewer vents are designed to release gases from the sewer system and prevent them from building up inside the house. If there is a problem with the sewer vent, such as a blockage or damage, it can cause sewer odors to escape outside.
  • Septic tank issues: If your house has a septic tank, problems with the tank such as leaks or overflows can result in a sewer smell outside.
  • Drainage problems: Poor drainage around your house can lead to stagnant water and sewage buildup, which can cause a foul odor.

Why do I occasionally smell sewer outside my house?

If you occasionally smell sewer outside your house, it could be due to various reasons:

  • Weather conditions: Changes in weather, such as temperature or wind direction, can affect how sewer odors disperse. If the wind is blowing in the direction of your house, it can carry the smell towards your property.
  • Neighborhood issues: Sewer problems in your neighborhood, such as blockages or leaks in the main sewer lines, can result in occasional sewer odors outside your house.
  • Seasonal factors: During heavy rainfall or periods of high water table, sewer systems can become overwhelmed, leading to odors escaping outside.
  • Intermittent issues: Sometimes, sewer smells outside your house may be caused by intermittent problems with your own plumbing system, such as a partial blockage or a faulty sewer vent.

How do you get rid of sewer smell outside?

To get rid of sewer smell outside your house, you can take the following steps:

  • Check for blockages or damage: Inspect your sewer lines and vents for any blockages or damage. If you find any issues, you may need to call a professional plumber to repair or clear them.
  • Ensure proper drainage: Make sure your property has proper drainage to prevent stagnant water and sewage buildup. Clear any clogged drains or gutters that may be contributing to the smell.
  • Consider a sewer odor trap: Installing a sewer odor trap, also known as a sewer gas interceptor, can help prevent sewer smells from entering your property. This device traps sewer gases before they can escape into the air.
  • Maintain your septic system: If you have a septic tank, regular maintenance and inspections are crucial to prevent leaks and odors. Schedule professional septic tank pumping and ensure the tank is in good working condition.

How do I get rid of sewer smell in my house?

If you are experiencing a sewer smell inside your house, you can try the following methods to eliminate it:

  • Check for plumbing issues: Inspect your plumbing system for any leaks, blockages, or damaged pipes. Fixing these issues can help eliminate the sewer smell.
  • Clean and disinfect drains: Pour a mixture of baking soda and vinegar down your drains, followed by hot water, to clean and remove any organic matter that may be causing the odor.
  • Use odor absorbers: Place odor absorbers, such as activated charcoal or baking soda, near the source of the smell to help neutralize the odor.
  • Ventilate your house: Open windows and use fans to improve air circulation and remove the sewer smell. Consider using air purifiers or dehumidifiers to further improve indoor air quality.
  • Consult a professional: If the sewer smell persists or you are unable to locate the source of the odor, it is recommended to contact a professional plumber or odor specialist to assess and resolve the issue.

Why does it smell like garbage outside?

There can be several reasons why it smells like garbage outside. One common reason is the presence of garbage bins or dumpsters nearby. If these containers are not properly sealed or emptied regularly, they can emit a strong odor. Additionally, if garbage is left out for an extended period of time or if it is not disposed of properly, it can start to decompose and produce a foul smell.

Is it unhealthy to smell sewer?

While smelling sewer can be unpleasant, it is generally not considered to be harmful to one’s health. However, prolonged exposure to sewer odors may cause some individuals to experience symptoms such as headaches, nausea, or respiratory issues. If you are frequently exposed to sewer smells or if you have any concerns about your health, it is recommended to consult with a medical professional.

Why does sewer smell come and go?

The presence of sewer smell can come and go due to various factors. One common reason is fluctuations in temperature and humidity. Changes in weather conditions can affect the movement of air and the dispersion of odors. Additionally, sewer smells may be more noticeable during certain times of the day when atmospheric conditions are more favorable for the odor to travel. Other factors such as wind direction and the proximity of the odor source can also contribute to the intermittent nature of sewer smells.

What kills the smell of sewage?

To eliminate or reduce the smell of sewage, it is important to identify and address the underlying cause. In some cases, the smell may be due to a blocked or damaged sewer line, which would require professional plumbing services to fix. Regular maintenance and cleaning of sewer systems can also help prevent odors. Additionally, using odor-absorbing products or natural remedies such as baking soda, vinegar, or activated charcoal can help neutralize and eliminate sewage smells.

Why does it smell like rotten eggs outside my house?

A smell like rotten eggs outside your house is often an indication of a gas leak, specifically hydrogen sulfide gas. Hydrogen sulfide is a byproduct of decaying organic matter and can be produced in sewer systems, septic tanks, or natural gas lines. If you detect a strong rotten egg smell, it is important to take immediate action as hydrogen sulfide can be highly flammable and toxic. Contact your local gas company or emergency services to report the smell and seek professional assistance to address the gas leak.

Will sewage smell go away?

Sewage smell can go away, but it depends on the cause of the smell. If the smell is due to a temporary issue, such as a clogged drain or a backed-up sewer line, it may go away on its own once the problem is resolved. However, if the smell is persistent and lingers even after attempts to eliminate it, it may indicate a more serious issue that requires professional intervention.

Why do I smell sewage at night?

There can be several reasons why you may smell sewage at night. One possible reason is that the smell is more noticeable when the air is cooler and denser, which often happens during the night. Additionally, if there is a leak or a blockage in the sewer system, the lack of daytime activities and noise can make the smell more apparent during the quiet hours of the night.

Why do I keep smelling sewer water?

If you keep smelling sewer water, it could be a sign of a plumbing issue or a problem with the sewer system. Common causes include a clogged drain, a broken sewer pipe, a dried-out P-trap, or a malfunctioning sewer vent. It is important to address the issue promptly to prevent any potential health hazards and further damage to your plumbing system.

Is it safe to smell sewage in your house?

Smelling sewage in your house is not safe and should be taken seriously. Sewage contains harmful bacteria and other pathogens that can pose health risks if inhaled or ingested. Prolonged exposure to sewage odor can cause respiratory problems, nausea, headaches, and other health issues. If you smell sewage in your house, it is recommended to contact a professional plumber to identify and resolve the underlying issue.

Does bleach stop sewer smell?

Bleach can help temporarily mask or eliminate sewer smell, but it does not address the underlying cause of the odor. It is important to note that bleach should not be used as a long-term solution for eliminating sewer smell. Instead, it is recommended to identify and resolve the root cause of the smell, such as a clogged drain or a damaged sewer pipe, with the help of a professional plumber.


Sewage smell can go away if the underlying issue is resolved, but it is important to address the problem promptly to prevent health hazards. Smelling sewage at night may be more noticeable due to cooler and denser air. Persistent sewer water smell indicates a plumbing or sewer system problem that requires attention. It is not safe to smell sewage in your house as it can pose health risks. While bleach can temporarily mask the smell, it does not solve the underlying issue. Professional help should be sought to identify and resolve the cause of the smell.

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