With experience and expertise, your plumber will be able to inspect your plumbing fixtures and identify where any problems may have originated. With the right tools on hand, they’ll be able to fix the problem, right there and then. If your water heater has triggered a full-blown flood, they’ll know exactly how and where to shut off the water supply. Should the flood be the result of a burst pipe, they’ll be able to change it before it can do any additional damage. Plumbers know a lot about their craft that we do not, and the Handy platform gives you the opportunity to book them and benefit from their knowledge and ability.
The video above from Lowe's shows how to fix leaks in all three types of single-handle faucets. Basically, you're going to remove the handle, pop out the mechanism, and replace it or the surrounding seals. If you can spot which part is causing trouble, you can buy each of the pieces individually. Otherwise, you can buy a faucet repair kit for that type of faucet and replace everything at once. Neither option should be very expensive.
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.