In this paper, the ADKAR change management model is used in a study aiming at understanding the type of intervention required to achieve a higher degree of accessibility in web portals and resources of higher education institutions (HEIs). We present the results of a questionnaire, designed to measure change readiness with regard to the implementation of a new accessibility policy and action plan, targeting over 80 web contributors employed by a Swiss university. Findings show that, while scores concerning awareness of the need for change are high, there are other elements in the model that require priority action, particularly reinforcement (reinsurance that change will be sustained over the long term), which in turn may have an effect on the desire for change. Data also indicates that different interventions might be needed depending on the participant profile. We contend that this tool could be suitable for HEIs to create an informed and realistic web accessibility roadmap, and to define clear actionable steps towards effective change.