Most published research on informal care for older people focuses on the support provided by relatives. The role of non-kin carers can, however, also be significant in supporting older people in their own homes. In this paper, we report the findings from an exploratory study of the support provided by friends and neighbours who are the main carers of frail older people. It draws on interviews with an opportunistic sample of friends, neighbours and older people, which explored their views about the support arrangements, the reasons why help was provided and any difficulties experienced.