This chapter will explore how childminders were seen as experts in the care of young children. Focusing on three key pieces of legislation—the Nurseries and Child-Minders Regulation Act (1948), the Health Service and Public Health Act (1968) and the Children Act (1989)—it will trace the ways in which their experiential expertise was constructed and the limits of their characterisation as experts. The portrayal of childminders also reveals wider concerns about gender, class and race as they often intersected in the figure of the childminder and her clients. The chapter will therefore explore whether the experiential expertise of all childminders (and the mothers who employed them) was viewed equally. Recent research has explored how the growing number of working married women encouraged debate over how their employment and domestic responsibilities should best be combined. Yet childminders have rarely been written about within historical scholarship. Based on an analysis of parliamentary papers, medical and sociological literature and press reports, this article will therefore add to existing scholarship by focusing on childminders themselves and exploring the notion of childminders’ status as experts in the care of young children.