The smell of sewage can be unsettling and may be an indication of a bigger problem in your plumbing system. This blog will discuss common causes for sewage smells and how to fix them.

Sewer Line Problems

A problem with your sewer system is one of the leading causes of sewage smells. The sewage can back up into your house if the sewer line is broken or blocked. You should contact a professional to inspect and repair your plumbing system if you suspect there is an issue with the sewer line.

Dry P Traps

These curved pipes are found beneath sinks, shower drains and toilets. These pipes hold water to prevent sewage gases entering your home. In the event that your P traps are dry, they can allow sewage gas to enter your house, which will cause an unpleasant smell. Pour prevent this from happening, make sure to run water regularly through all your fixtures in order to keep them full and working properly.

Clogged Vents

Vents are part of your plumbing system that allow air to pass through pipes and release sewage gases. When these vents get clogged, sewage gases can build up in your home.

In order to prevent this from happening, you should regularly inspect and clean your vents. Remove any debris or obstructions that may be preventing the proper flow of air.

Roof Ventilation Issues

The source of sewage odors can sometimes be due to problems with your roof ventilation. Blockages or damaged vents can cause sewage to buildup in your house and emit unpleasant odors.

If you suspect your roof ventilation is the source of the issue, call a roofing contractor who can inspect and resolve the issue.


Conclusion: The smell of sewer in your home could be an indication of a bigger problem with your plumbing. Sewer line problems are common. So are clogged vents or roof ventilation.

You should address sewage smells immediately if they are present in your home. This will prevent health problems and possible damage to the plumbing system. A professional plumber can inspect your system to identify the cause and prevent future problems.