The success of an organization is measured by accomplished project deliverables and growth in market competition. However, hindrances can be an impediment in project successes. These hindrances are mostly attributed to project delays. This study aims to outline project delays in construction projects, particularly in elevator constructions. Furthermore, the paper addresses the issue of these delays and proposes a process performance improvement through the identification and mitigation of delays in elevator construction – by presentation of project research criteria and identification of appropriate project management tools and techniques. To achieve this goal, a multi-mode descriptive study is adapted by using quantitative and qualitative approaches by means of interviews, root-cause analysis, decision analyses, and potential problem analysis. Based on the analyses conducted, risk assessment, supply chain forecasting, Critical Path Method (CPM), Program Evaluation and Review Technique (PERT), Make to Stock (MTS), and schedule compression are necessary to avoid the three most significant delays: lack of project management tools, poor risk management plan, and delay in delivery of materials by supplier, respectively.