The thing that is going to require a plumber most commonly is the kitchen and bathroom areas.
This is where people are going to get sinks replaced along with a repair of the clogged toilet or leaky faucets. These are common things that are needed inside of homes on a regular basis. It is difficult to run anything on a regular basis and not expect to have problems with it at some point. This is how plumbers become of service. They fix those things that have been used constantly that are now broken.
People use shower heads and sinks on a daily basis. They use this part of the bathroom and they are using things in the kitchen on such a regular basis. They never think about the fact that it will eventually break. A leaky faucet is going to be something that a plumber will need to come in for. The same thing is true for a sink that is clogged. Sometimes a toilet gets backed up in a plunger is not enough to stop the problem. For things like this plumbers are handy.
In some instances, these are things that can be done in less than an hour. These are things that are easy to fix, and it goes without saying that plumbing is something that everyone may not be able to do. This is why so many homeowners avoid the do-it-yourself videos about fixing up their homes. Plumbers have to get the right types of tools. They have to be able to get the right pipes when they are doing work. If you are unsure of measurements for pipes or the type of plumbing tools that are needed to tighten things up it is going to be best for you to simply hand over the job to a seasoned professional.