The answer to 'plumbing repair overflowing' is that a clogged or blocked drain is the most common cause of an overflowing sink, tub, or toilet. This can be due to a buildup of hair, soap scum, food particles, or other debris in the pipes. Symptoms include water backing up and spilling over the top of the fixture.
For minor clogs, you may be able to fix the issue yourself using a plunger or a drain snake. However, if the clog is deeper in the pipes or the problem persists, it's best to call a professional plumber. They have the tools and expertise to properly diagnose and resolve the issue, preventing further damage to your plumbing system.