What is the most common cause of a running toilet leak?

The most common cause of a running toilet is a worn flapper that lets water leak from the tank into the bowl. A misadjusted or failed flush valve can also keep the toilet running. Our plumbers inspect connections and water lines, replace worn flappers, adjust or replace flush valves, and reseat the base seal if leaks appear at the floor. We serve Peru, Logansport, and Wabash, and provide repair-or-replace guidance with upfront estimates.

Updated: 2025-12-22

Need help in Peru, IN? Call (765) 473-5435 or book online.

"Installed new toilet and new shower." — Jason A.