Sewer Gas in Your Home: Risks and What to Do

Sewer gas is a general term for gases that can build up when wastewater lines, drains, or vents don’t function properly. It may smell like rotten eggs, a strong “sewage” odor, or even fuel-like fumes. While some incidents are minor and fixable—such as a dry drain trap—others can point to conditions that are hazardous to health or require urgent attention.

Because sewer gas contains potentially toxic and flammable components, it’s important to treat unusual odors as a warning sign, not just a nuisance.