Are all water main pipes coated with epoxy?

No, not all water main pipes are coated with epoxy. Many older homes and buildings have uncoated copper, galvanized steel, or PVC pipes. Epoxy coating is typically applied as a rehabilitation method—not a standard installation—when pipes begin to corrode, leak, or show signs of wear. At Done Plumbing, Heating, Cooling & Electric, we use epoxy and polyurea coatings as a strategic solution to extend the life of aging water mains without digging or replacing the entire line.