A plumber can be considered as a necessity for any regular homeowner. They will help you with the installation of new plumbing systems and repairs on existing ones. In addition to that, they also offer some preventive maintenance services. If you are looking for a plumber, there are many reasons that you should choose an established company instead of an individual one. Established companies have better access to supplies, experience and knowledge about the field which can come in handy when you need it most.