Parenting interventions can dramatically reduce violence against children and improve a child’s future. Yet in the past, research has mainly focused on young children in high-income countries, and most of the research has only used quantitative methodology. By contrast, this qualitative study focuses on teenagers and their caregivers who attended a parenting programme in South Africa, contributing to a small but growing body of research on parent support programmes for teenagers in low and middle-income countries. The research examines the Sinovuyo Teen Parenting programme, which was developed and tested between 2012 and 2016 in South Africa. The main qualitative study was carried out in the last year (2015–2016) and is the focus of this paper. It complements a cluster randomized controlled trial. This qualitative study captures the experiences of teenagers and parents who attended the Sinovuyo Teen Parenting programme in 2015. Importantly, the study gives an insight into how the caregivers and teenagers changed as a result of participating in the study. Findings show that both caregivers and teenagers valued the programme and their participation fostered better family relations and reduced violence at home. Their views are important for practitioners, programme implementers and researchers working in violence prevention and child and family welfare. More research is needed, however, to show whether these changes can be sustained.