Background: Research suggests that a better awareness of how staff who directly support people with intellectual disabilities experience their working relationships, will contribute to understanding staff wellbeing and the quality of care they offer. This study aimed to gain insights into the lived experiences of support workers in supported living services in England. Method: Six support workers participated in semi-structured interviews, about their working relationships with service-users and colleagues. Data was analysed using interpretative phenomenological analysis. Results: Six interconnected themes emerged: The essence of good relationships; a trusting relationship as the vehicle for meeting service-users' needs; belonging to the support team; the organisational context of relationships; the social context of relationships; 'a fine balancing act'. Conclusions: The findings provide insights into staff wellbeing, indicating that developing supportive, trusting relationships with both service-users and colleagues, plays an important role in delivering effective care. Potential implications for service providers are discussed.