Here is a good example of why you should hire a Licensed and Insured Plumber. This is what NOT to do. Although you may think you are saving money by hiring somebody who thinks they know plumbing but let's take that out of the equation and make it safe and sound in the first place. Why spend double? Call Poly-B Plumbing 705-984-6249 both Licensed and Insured. Second generation Plumbing. Plumbing in Orillia and surrounding areas.