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What’s That Foul Smell Coming from My Drain?

Having a foul smell coming from your drains is not only embarrassing, but it can also make your entire house reek. If you are detecting a sewer-like odor coming from your drains, you should immediately call an experienced plumber to have it eliminated as soon as possible. At Precision Plumbing Sewer Drain Cleaning, our team of plumbing technicians is dedicated to helping clients in Chicagoland fix their plumbing issues since 1992, and we have the skills and experience that you need to get the job done right the first time. In this blog, we talk about a few things that can make your drains smell bad.

Dry P-Trap

The smell of sewage can be the result of a dry p-trap. Underneath your sink is a curved section of the drainpipe, this is the p-trap. The p-trap collects water and forms a plug to keep sewer gases from coming back up the pipe. If the foul odor is coming from a sink that hasn’t been used in some time, a dry p-trap is most likely causing the smell. To prevent this, you should regularly run water down the sinks that are rarely used. This will restore the plug and prevent sewer gas from building up in your drains.

Sewer Line Problems

If the foul smell is coming from different sinks throughout your house, it might be caused by a break or block in the sewer line. If this is the case, you will likely notice clogs and gurgling sounds coming from the drains as well. A blocked sewer line is a serious problem that requires the skills of an experienced plumbing technician. If you don’t fix this issue right away, it can result in sewage penetrating the home’s foundation.

Venting Issues

In addition to the p-trap, venting pipes also prevent sewer gas from entering your home. Venting pipes force back-flowing sewer gases to travel up to the roof of the house. Debris, animal nests, and snow can clog your venting pipes and force the sewer gases through your drains. Repairing venting issues can be complicated, which is why you should call a plumber for assistance.

We Are Here to Assist You

Is there a foul smell coming from your drains? If so, you should get in touch with our team to find out how our plumbing technicians resolve your issue and ensure that your home’s water quality remains at the highest level. We offer a wide range of plumbing services, and we are prepared to get to work for you today.

Call (630) 523-8453 to schedule your service with a Chicagoland plumber. We are here to serve you.


  • Drain Cleaning
  • Clogged Toilet
  • Clogged Sink
  • Sewer Cleaning
  • Clogged Bath Drains
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