Roulo's Plumbing Heating & Cooling provides plumbing, heating, and cooling services since 1905. 10% Senior Discount. Licensed and Insured. Give us a call today. Plumbers are experts in all things related to plumbing. They are an integral part of the US service industry as their role is indispensable in both residential & commercial markets. Plumbers provide various services including backflow prevention, blocked drain repairs, toilet & tap repairs and more.