BackgroundIntermediate care (IC) services bridge the transition for older patients from the hospital to the home. Despite the goal of involving individuals in their recovery process, these services often become standardised, leading to communication breakdowns. While evidence-based practices, such as the Four Habits Model (4HM), for effective communication are crucial for enhancing high-quality healthcare, research suggests their integration into routine practice remains limited. In this study, we aimed to investigate the implementation process of the 4HM through a two-day course that engaged healthcare professionals and managers in IC.MethodsWe conducted a process evaluation employing qualitative and quantitative methods: (i) individual interviews with three managers and two course participants pre-course, (ii) two focus group interviews with course participants (N = 11) and individual interviews with the same three managers post-course, and (iii) the NoMAD questionnaire (Normalisation MeAsure Development) administered four months later to assess the short- and long-term impact on course participants (N = 14). Reflexive thematic analyses were guided by Normalisation Process Theory (NPT), which offers insight into how new interventions become routine practices. The analysis of the NoMAD involved descriptive statistics.ResultsWe identified four themes in the qualitative data: (i) Decoding Interactions: Making Sense of the 4HM in IC services, (ii) Fostering Change: Legitimising 4HM Through Staff Engagement, (iii) Harmonising Practice: Integrating 4HM into Complex Situations, and (iv) Embedding Value: Normalising the 4HM into Everyday Work. These themes illustrate the normalisation process of the 4HM course within IC, establishing standard practices. Healthcare professionals and managers highlighted the urgent need to integrate communication skills based on the 4HM into daily care. They noted positive changes in their communication habits following the course. The consistent findings from the NoMAD questionnaire underscore the sustainability of implementing the 4HM programme, as participants continue to utilise it in their clinical practice beyond the initial four-month period.ConclusionThe 4HM course programme was deemed feasible for expansion within IC services. Both managers and staff found its focus on addressing communication breakdowns and readiness for change sensible. The study findings may benefit the stakeholders involved in IC service routines, potentially improving services for older patients and relatives.