When do you really need a plumber. Leaky faucet? Rusted sink? Plugged toilet? https://ideamensch.com/tim-hill/ speaks to the question at hand. Sometimes you just need to call a plumber and other times you can pull off a DIY project. If you are knee deep in water a plumber may be the way to go but a small leak can be managed yourself. Do you really have the money to throw around on a plumber for simple things? I think not. now, go and look at the reality of the situation and almost always you can fix it cheaper. I fix what I can and if I get over my head, I call a professional.