Looking for a plumber? Here are a few helpful ideas to assist you in finding the right plumber for the job. Typically, plumbing professionals are divided into two categories, those who specialize in commercial plumbing and those who specialize in residential. Within these two groups, there are professionals who concentrate in particular areas such as, sewer problems, drains, remodeling, etc... whatever type of plumber you need, you should hire a qualified professional, one who has the proper licenses and insurance coverage needed. Most plumbers charge for a field call as well as an hourly rate for any work performed and, of course, you'll pay for any replacement parts. After regular business hours, the charges may increase. For non-emergency jobs, it's a good idea to take bids. Make sure you give each plumber the same information, so that you can make a fair comparison when they offer their bids. All bids should also specify the materials that will be needed. It also doesn't hurt to get references and follow up on them.