Quality issues are a major concern for building projects and continue unabated. Therefore, this research aims to investigate quality problems in Turkish public buildings and to recommend quality improvements to improve construction quality for successful construction in both public and private projects. Survey data were analyzed using frequency indices (FIs) and consensus frequency indices (CFIs) to rank dissatisfaction levels, in-complete or defective works, and suggestions to improve construction quality. According to the results of the survey, the FIof poor quality or non-standard work on the completed public buildings was 0.75, and the project duration estimated by the owners was the major cause (3.92 +/- 1.16). The most stated recommendation for improving the quality of building work and materials was to increase sanctions on responsible personnel (4.28 +/- 0.71) with a CFI of 0.64. Quality issues are a major concern for building projects. Literature has documented that there are a variety of challenges faced by construction projects, such as unforeseen structural issues and budget overruns. There are several types of quality control issues, including improper installation, defective materials, and deviations from approved plans. Having insufficiently qualified workers can result in delays, increased costs, and poor quality. Regulation violations can lead to fines, project delays, and reputational damage. This study aims to investigate Turkish public building quality issues from both the perspectives of contractors and control officers to ensure successful project outcomes. The findings of this study will provide valuable insights for the public and private construction sectors into improving construction quality to ensure successful building projects.