"There are multiple training programs for apprentices - either within an organization that specifically offers apprentice training in the plumbing industry, through online training aids or, in some plumbing companies, through a company's own 'in-house' training program," said Roger Goertz , president of Mr. Rooter of the Greater Houston Area. After training comes licensing, and requirements vary. Most states require workers to have two to five years of experience and to pass an exam that shows their knowledge of the trade and of local plumbing codes before they are permitted to work independently, according to the U.S. Bureau of Labor Statistics . Electricians and plumbers work in a wide variety of environments for a range of clients - indoors and outdoors at homes, businesses and construction sites. Residential and commercial clients, in particular, often require electricians and plumbers to take different factors into consideration. "Residential clients are ... interested in appearance and function, whereas the commercial sectors are interested in function and durability," Goertz said. He also said plumbing equipment and systems in place at residential and commercial sites differ greatly, which affects response times, pricing and the overall nature of the work - a fact true for electricians as well.
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