This study explores how ethical leadership can improve employee wellbeing in high-pressure environments like construction. It shows that leaders who act fairly, show integrity, and genuinely care about their teams can positively influence how employees feel at work. A key finding is that this happens through perceived organisational support, when employees feel valued and supported, their wellbeing improves. The research highlights that leadership behaviour alone isn’t enough; it must translate into real, everyday support. Overall, it reinforces the importance of trust, fairness, and visible support in shaping healthier workplace experiences.