Topliss Bros Precision Engineers is a family business that has been designing and making shower mixing valves in Nelson, New Zealand since 1956.We are a manufacturer with a precision machine shop carrying out a wide range of engineering services – providing contract machining services while also manufacturing our own products such as shower mixing valves. All manner of tasks from repair work to design and manufacture are offered. We have tools ranging from mills, drills, lathes, presses, welders and grinders through to the most state of the art CNC machinery.