 His sons took over after that, followed by his two grandsons who died in 1961 and 2002.Robert Dyas has survived several catastrophes including the Great Depression and the Blitz in which the head office, warehouse and 18 shops were destroyed.In 1997, Robert Dyas's head office and warehouse burnt down in Croydon; the head office is now in Wimbledon, London, after a time in Leatherhead, Surrey.