As the focus on mental health in schools has increased so too has the number of agencies providing, services, talks and activities to support mental health promotion. While there is evidence to suggest that supporting community mental health through schools is beneficial there is little empirical evidence for many of the interventions on offer (Kelly, 2007). This study aims to examine the effect of Jigsaws school intervention on attitudes to mental health, help-seeking and social distance in a second level school in North Fingal. The research instrument was a self-administered questionnaire completed over three time points. This study found the intervention resulted in more positive attitudes to mental health and an increased awareness in sources of help. No effect was measured on barriers to help seeking. While mixed results were found in relation to social distance. Limitations of the current study and areas for research are discussed.