This paper reports a study that aimed to investigate the perspectives of educational psychologists (EPs) and speech and language therapists (SLTs) about collaborative practices across these two services, to identify any barriers to collaboration and to explore how these could be overcome. The views of EPs and SLTs in two local authorities were sought using a questionnaire. Data analysis identified differences relating to professional and attitudinal issues, revealing divergent views about assessment and resource allocation. Communication difficulties were also identified. Approaches to develop effective collaborative practice are discussed and the importance of creating opportunities to deliver joint training in schools is highlighted. (Contains 3 figures.)