While a plumber will typically work with a variety of appliances at both residential and commercial properties, they may see a few common plumbing services. First, fixing leaks may be a frequent reoccurrence, whether in a sink, tub, or even shower. Leaks should be fixed as soon as possible to avoid further damage, water waste, or high water bills. Aside from leaks, and clogged drains, it’s fairly common due to the build-up of things such as hair and soap scum.