I thought that my sump pump had ended its life and needed to be replaced. The contractor I found through Home Adviser came out the following day and arrived reasonably promptly. The technician tested the pump and it wasn't responding. He then checked the breaker panel and all seemed well. However he checked to see if power was reaching the outlet, it wasn't so he tripped some breakers and reset them and the power to my pump came on and the pump works so a replacement wasn't necessary. He charged $75.00 which I think was reasonable for a call-out fee and time spent.
The word "plumber" dates from the Roman Empire. The Latin for lead is plumbum. Roman roofs used lead in conduits and drain pipes and some were also covered with lead, lead was also used for piping and for making baths. In medieval times anyone who worked with lead was referred to as a plumber as can be seen from an extract of workmen fixing a roof in Westminster Palace and were referred to as plumbers "To Gilbert de Westminster, plumber, working about the roof of the pantry of the little hall, covering it with lead, and about various defects in the roof of the little hall". Thus a person with expertise in working with lead was first known as a Plumbarius which was later shortened to plumber.