Systematic work environment management is important to prevent ill health and promote health and well-being in a high-risk industry, as the construction industry. Transformative leadership strategies are seen to contribute to increase job satisfaction among employees and first-line managers seems to be a significant part of applying such strategies. Previous research on how first-line managers perceives their use of such strategies has not been found. The aim of this study was to investigate how first-line managers in the construction industry perceives their efforts to promote well-being of their employees. Five semi-structured interviews were conducted with first-line managers from three different construction companies. PERMA framework has worked as a support for the design of the research question and the interview guide. Collected data was analysed by a qualitative content analysis with an abductive approach. The results showed that five first-line managers perceive that they work with conscious leadership strategies to promote well-being of their employees. This was done by creating participation, being attentive and open to feedback, having a daily dialogue that contributes to the ability to notice any digression, and adapting work tasks according to employees needs and conditions. Therefore, could this study contribute to further dialogue about health promotion initiatives in the construction industry. For the purpose to continuing to develop and work with systematic work environment aspects and leadership strategies that can promote employee well-being.