Mental health problems are on the rise in contemporary organizations largely due to frequent job insecurity among employees. Drawing from traditional stress theories, the study assesses work-family conflict as a mediator in the correlation between job insecurity and job disengagement. Additionally, it hypothesized that the influence of job insecurity on job disengagement, mediated by work-family conflict, would be contingent upon perceived procedural justice. Consequently, the study employed a moderated mediation model to test these hypotheses. Data were collected from a sample of 263 private security personnel in Accra, Ghana. Utilizing questionnaires administered at a single time point over an eight-week duration, the study gathered information from the participants on job insecurity, job disengagement, work-family conflict, and procedural justice. Subsequently, JASP software and the PROCESS model were utilized to analyze the data. The study revealed that procedural justice played a dual role: it not only moderated the impact of job insecurity and work-family conflict but also moderated the positive effect of job insecurity on job disengagement through work-life conflict. This study pioneers an examination of the moderated mediated mechanism involving procedural justice as a moderator in the relationship between job insecurity and job disengagement via work-family conflict. The findings of this study offer valuable insights for organizations by highlighting the mitigating influence of procedural justice in reducing employee job disengagement through the mediated pathway of work-family.