Patient or user engagement with health and social care interventions is receiving increased attention and interest within practice settings and research. An English evaluation of three reablement services wished to include a measure of user‐engagement so as to explore its association with outcomes. As no measure of reablement engagement existed, an existing measure designed for use with physical rehabilitation patients (the Hopkins Rehabilitation Engagement Rating Scale) was adapted and its psychometric properties were tested. The adapted version was completed by reablement staff at the time an individual (n = 129) was discharged from one of the three reablement services. Outcomes data (Barthel Index, Nottingham Extended Activities of Daily Living Scale, General Health Questionnaire‐12) collected by the evaluation study at baseline (that is, at entry into reablement), discharge and 6 months postdischarge was used for some psychometric testing. Internal consistency and construct, predictive and discriminant validity were investigated. The adapted scale measured a single construct and had good internal consistency. Tests of predictive and discriminant validity were positive. Findings from a separate, small‐scale (n = 31) test–retest study offer an early indication that this is acceptable. There was, however, evidence of a ceiling effect and we consider ways this may be ameliorated. The Hopkins Rehabilitation Engagement Rating Scale – Reablement Version offers a means by which user engagement in reablement can be measured using a staff‐completed instrument. The association between engagement and reablement outcomes, revealed when testing for predictive validity, supports the argument for greater attention and investment in research on user engagement in reablement. More broadly, researching engagement within the context of an intervention often delivered by multiple practitioners offers the opportunity to further understand this concept which, in the past, has particularly focused on interventions delivered by a single practitioner. In addition, future work should include developing a companion measure completed by service users.