Plumbing is a part of a house that people often think they can repair themselves. You might be able to change the washers on a sink or put in aerators, but other jobs require a plumber. Not an amateur who makes big promises for low prices! You need to hire an actual professional plumber with the right training and credentials.
What sets a professional plumber above an amateur? It’s more than just training, although that’s a good place to start. There are some important qualities that set a professional plumber apart.