Why Do My Drains Make Gurgling Or Popping Sounds

Gurgling or popping sounds coming from your drains are typically signs of air trapped in the plumbing system, usually caused by a partial clog or a venting issue. When wastewater flows through your pipes, it displaces air. If that air has nowhere to escape—due to a blockage or a malfunctioning vent—it creates negative pressure, resulting in the gurgling or bubbling noises you hear.

Common causes include buildup of grease, hair, or debris in the pipes, or a blocked plumbing vent (often located on the roof). These vents are essential for balancing air pressure and allowing water to flow freely through your drain lines.

In some cases, improper pipe installation or older, undersized plumbing systems may also contribute to poor drainage and gurgling noises.

To prevent further damage or backups, it’s important to have a professional plumber inspect the issue. At A&G Plumbing and Drain, we serve Metro Atlanta, Marietta, and surrounding areas with expert drain diagnostics and safe cleaning solutions to restore quiet, efficient flow to your plumbing system.