Background Chronic alcohol disorder hospital admissions are increasing in England and present a huge cost to England’s health and social care costs. Hospital-based alcohol care teams (ACTs) aim to better meet these patients’ complex needs through assessment and targeted referral. This has the potential to work effectively within England’s newly established integrated care system. Methods The aim of this project was to identify in what ways ACTs can be effective in improving care pathways for complex care in a whole-system health and social care setting. We conducted semi-structured, tailored interviews with practitioners, managers and commissioners, across three hospital and community settings in one large urban region in England, comparing ACT working with non-ACT working. Results Effective pathways were enabled by the presence of an ACT, multi-agency community initiatives, assertive alcohol outreach and frequent-attender team meetings. Identified barriers were lack of systemic funding and commissioning, poor communication between agencies, lack of information-sharing and insufficient staff training. Conclusion Community outreach and in-reach between hospitals and community services enable effective care pathways when ACTs provide the point of contact. A well-resourced ACT with clear operational remit can create links between diverse agencies and enables improved wraparound care for alcohol dependent patients.