Construction mafia activities continue to disrupt construction project delivery in South Africa through extortion, intimidation, and interference at project sites. This study examines construction professionals’ perceptions of government interventions aimed at addressing construction mafia activities. A quantitative research design was adopted, using a structured questionnaire administered to construction professionals across South Africa. A total of 84 questionnaires were distributed, of which 78 valid responses were obtained. Data were analysed using SPSS through descriptive statistics and analysis of variance. Respondents rated ten government interventions using a five-point Likert scale. The findings indicate generally positive perceptions across all interventions, with mean scores ranging from 3.85 to 4.04. Inter-agency task forces for law-enforcement mobilisation received the highest mean score (4.04), followed by financial oversight through the National Treasury Act (3.96) and strategic planning associated with the National Infrastructure Summit (3.95). However, analysis of variance showed no statistically significant differences among the intervention ratings (p > 0.05). The findings suggest that construction professionals view coordinated enforcement, financial oversight, and institutional collaboration positively, while continued attention to implementation, monitoring, and inter-agency coordination may strengthen responses to construction mafia activities.