Step 6 · Call a Professional Plumber

If you have completed all the previous steps and the problem isn't solved, or if you discovered a main line clog or were uncomfortable performing any step, it is time to call a professional. A licensed plumber has advanced tools like powerful augers, hydro-jetting equipment, and sewer inspection cameras. They can quickly and accurately diagnose the exact location and nature of the clog—whether it's a severe blockage, tree root intrusion, or a damaged pipe—and resolve it safely and effectively. When you call, be sure to describe the symptoms and all the troubleshooting steps you have already taken.