Background: Involving carers is a key priority in mental health services. Carers report the sharing of service users’ safety information by mental health nurses is problematic and seldom takes place. Aims: The impact of an intervention on consensus between nurses and carers on perceptions of risk was investigated. Methods: Carer–nurse risk consensus scores were measured pre- and post-introduction of a structured dialogue (paired t-test/ANOVA). Carer experience with involvement was surveyed pre-test (n = 60) and compared with the post-test intervention group (n = 32) (chi-square tests of linear-by-linear association). Results: Consensus and perceptions regarding type and severity of risk did not change significantly for carers or nurses after engaging in a structured dialogue. Statistically significant differences were found with carers reporting higher levels of satisfaction with services in four out of six areas surveyed. Conclusions: Findings provide support for increasing carer contribution to discussions regarding risk. Further work to embed carer involvement in clinical practice is warranted.