• Mr. Narendra Shivajirao Deshmukh
• Prof. G. N. Kanade
• Prof. A. B. Patil

Nowadays, construction defects have become widespread and frequently occur in construction projects, particularly in those with inadequate management or insufficient supervision on-site. A construction defect is often regarded as a major error in the construction industry, significantly impacting costs and causing the value of a building to diminish over time. These defects lead to substantial expenses, defined as the cost incurred for rework to rectify the issue. Labor hours, materials, and equipment usage are consumed to address the defect. Additionally, delays resulting from defects lead to further time loss. In multi-storied construction projects, the prevalence of defects during construction activities is notably high. Therefore, it is essential to identify defects associated with inferior quality in construction projects, whether related to architectural, structural, or construction standards. The paper also recommends various improvement strategies to enhance the quality of buildings by minimizing defects. One effective method is Six Sigma, a quality improvement technique that has been implemented in manufacturing and other industries. However, its application in the construction industry is still relatively new. This paper explores the fundamental concepts of Six Sigma, its principles, methodologies, and the various tools used to reduce defects. The findings suggest that proper training, management support, and minor modifications to existing work processes can significantly enhance quality and ultimately improve customer satisfaction, which is of utmost importance.

Building defects, Construction defects, six sigma, construction delay, DMAIC, poor workmanship.

"A Review on “Study & Analysis for Reduction of Housing Construction Defects on Existing Housing Construction Projects using Six Sigma Technique.”", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 5, page no.b409-b411, May-2025, Available :http://www.jetir.org/papers/JETIR2505146.pdf

"A Review on “Study & Analysis for Reduction of Housing Construction Defects on Existing Housing Construction Projects using Six Sigma Technique.”", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 5, page no. ppb409-b411, May-2025, Available at : http://www.jetir.org/papers/JETIR2505146.pdf