This small-scale research project used semi-structured interviews and a 'Draw and Write' technique to explore the views of parents / carers and children and young people about the impact of parental substance use and implications for services. Most adult participants had recognised their need for help and had obtained treatment for their drug / alcohol use. Children were aware of the emotional turmoil caused by their parents' substance use; social workers were important people in their lives. Families in the study either needed substantial help from their extended family, or from Social Services (now Children's Social Care), or both. Most parents were ambivalent or self-critical about their abilities as parents and had tried to combine their substance use with ensuring that the basic needs of their children had been met. Access to methadone prescriptions had helped stabilise the lives of parents who had previously been heroin users. Parents' wish to look after their children properly, or to resume their care, was a powerful motivator for them to stop using drugs / alcohol. Children, who displayed considerable resilience, were largely aware of parental substance use and its impact on family life. Implications for professionals supporting substance-using families are highlighted.