Giumma entered definitively the naval sector by supplying Costa Marina Conversion with porthole frames (1989). The first wet unit in fiberglass is built for Costa Classica (1990). From this point forward Giumma has continued on this course as one of the selected few manufacturers of fiberglass. World’s largest supplier of prefabricated bathrooms in fiberglass with automatized production system to cruise ship from 1990 to 2006.
World leader for wet unit construction with incorporated fan coil, world leader in monobloc wet units. Complex fiberglass design allows floors and walls to be manufactured into one piece, an exclusively design of Giumma, that eliminates assembling joints, major cause of water leakings and grime. Giumma develops a dedicated factory in Lipno Poland for naval sector production.