Man, I’ve been there! My cousin’s kid once “tested” how many toy blocks could fit in the toilet, and of course it clogged completely. The thing refused to flush, and I knew it was time to bite the bullet and replace it. From what I’ve seen, a standard toilet replacement usually runs around $300–$500 including parts and labor, though fancier models or extra plumbing work can push it higher. This guide lays it out clearly so you know what to expect: plumber cost to install a new toilet . Learned my lesson—no more “toy experiments” in the bathroom!