The building construction sector which is mainly made up of micro and small companies registers high levels of work accidents. This sector is characterized by several risk factors, such as working at heights, moving loads, handling machinery and work equipment, the presence of dust and other hazardous chemicals, improper posture, noise and vibration, as well as adverse weather conditions. Accidents usually occur due to unsafe conditions and / or actions. This tool aims to contribute to an improvement of working conditions in the building construction sector, as it allows for an assessment of existing risks and suggests measures to be implemented to control these risks and produces an action plan to be implemented at the workplace.