The introduction of intensive support units in Glenmona Resource Centre has provoked a radical review of social work practices in a group care environment. In this article, traditional support within residential care has been reviewed, strengths identified and outcomes from greater understanding and relationship building defined, in a multi-disciplinary and inter-agency model of intervention. This paper presents the outcomes from this review of practice, to encourage discussion about effective intervention in a residential environment with young people assessed to be at high risk. The review defines the theory and rationale behind intensive support. The theory has been applied in practice and reflected upon through the range of interventions that have been utilised since the Intensive Support Model was introduced at Glenmona Resource Centre in April 2005. This includes a review of relationship work, understanding and responding to the traumatic experiences of the young people, application of therapeutic crisis intervention, restorative practices and recognition of the importance of supporting staffing. The benefits of the intensive support unit model in terms of positive experiences and outcomes for young people and staff are illustrated throughout by case examples.