Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 138,150 pages of information and 223,038 images on early companies, their products and the people who designed and built them.
c1930s The company was founded in the 1930s as a building contractor, but subsequently emerged as one of the major door manufacturers feeding the post-war housing boom.
1960s Further expansion at Leaderflush with emphasis on fire doors and development of the complete doorset concept, as well as more specialised products for particular building types such as medical, leisure and custodial.
1989 Ownership of Leaderflush passed to Whitecroft Holdings plc., which also owned Longden Doors since 1962.