The study is to explore the impact of the personal attitude on decision making at one of the most critical sectors in the Gulf area; which is construction. This objective is explicitly selected to developing the skills of the decision-makers to avoid personal interference in decisions. To achieve these goals, the researcher utilised a mixed methodology, which includes both qualitative and quantitative data collection methods. The designed questionnaire was distributed via emails accounts to the selected sample of eighty (84) employees from a staff working in 1st-degree Construction Company in Riyadh/Saudi Arabia. Interviews have been done with four (4) of the senior managers were selected from amongst the selected 1st-degree construction company of Saudi Arabia management. The study found that culture does not affect decision-making, while both emotions and risks attitude affects decision-making. The results confirmed that positive emotions positively affect the work environment, and noted the importance of having clear and broad knowledge among decision-makers on risk management.