Founded by father and son Alex Willcock and Felix Conran, Maker & Son make natural, life-lasting upholstered furniture including sofas, armchairs and beds. From its base in Balcombe, Sussex, this is the story of a family with creativity and craft in their DNA. Felix Conran chats to Carole Annett about how Maker & Son came to be, the ‘flump’, mobile shopping vans and exciting plans for the future