Founded in 1874, the Henkenjohann family's wooden shoe business was already in its third generation by the time the destroyed cities were being rebuilt after the Second World War. Johann Henkenjohann moved the company into shutter manufacturing in 1950 when he recognised the demand for regulating light in a flexible, space-saving way.
The invention of the first foamed roller shutter slat in 1969 revolutionised the shutter market. While initiating this new production process, the company also changed its name to heroal (Henkenjohann rollformt Aluminium). The birth of heroal. From that time on, heroal began developing into a technological leader in aluminium processing for roller shutters, sunshades and garage doors as well as windows, front doors and facades.