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- 1). Ask to see the company's license. It should be able to provide a piece of paper that states it is currently licensed to work.
- 2). Ask to see the license of the individual plumber. Know the types of licenses you are dealing with. A plumber in Honolulu can be a licensed Journey Worker Plumber, which means he has five years and at least 10,000 hours spent working at his trade, or a Master Plumber, which means he has been a Journey Worker Plumber for at least two years.
- 3). Call the Consumer Research Center for Regulated Industries Complaints Office at 808-587-3295 or 808-587-3222. This organization can tell you whether a Honolulu plumbing company has a license. It can also provide information about current complaints against the company.
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