Sewage Smell Bathroom

[Yusuf Qureshi]

I have a single family home, and one bathroom has a sewage smell. I have called a plumber multiple amount of times, and they cannot fix the issue. The smell just comes from one bathroom. This is half bath, just toilet and sink. No shower. 

Anyone had similar issues and were able to solve it? Who else should I call?

[Steve Vaughan]

Originally posted by @Joe Splitrock:

Originally posted by @Yusuf Qureshi:

I have a single family home, and one bathroom has a sewage smell. I have called a plumber multiple amount of times, and they cannot fix the issue. The smell just comes from one bathroom. This is half bath, just toilet and sink. No shower. 

Anyone had similar issues and were able to solve it? Who else should I call?

 The toilet and sink have a water trap that should block smells from coming up the sewer pipe. I would guess two possibilities:

1. The toilet needs a new wax ring. If a plumber didn't pull and reseat the toilet with a new was ring, I would try this first.

2. The venting stack wasn't run properly for the toilet or sink. This can happen in remodels or older homes. The gas pushes its way up through the water because there is no vent. This is tougher to find because it may require opening walls. You can probably look in the attic to see if there is a sewer vent pipe by the bathroom. 

Yup.  Better wax ring.  May need a studor vent under sink.  Snake vent pipe on roof. 

Plumbers.  At least it took forever and you were charged plenty. LOL