If you are doing work that amounts to more than $10,000 you must hold a valid plumber license. You do not need a license if you are doing plumbing (public or private) that amounts to less than $50,000 per project.
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These days, skilled plumbers are hard to come by. As a generation of Baby Boomers retire, not enough new plumbers are entering the field to replace them. Now more than ever, employers need to focus on retaining their highly skilled plumbers.
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