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

In recent times, construction defects have become prevalent and frequently observed in construction projects, particularly in those with inadequate management or supervision at the site. A construction defect is considered a significant error in the construction industry, which can negatively impact the cost and reduce the value of a building over time. These defects incur substantial costs, defined as the expenditure required for rework resulting from such errors. Resources such as work time, materials, and equipment usage are consumed to rectify the defects. Additionally, time is lost due to delays caused by these issues. In multi-storied construction sites, defects are notably common during construction activities. Therefore, it is crucial to identify defects associated with substandard quality in construction projects, whether they relate to architectural, structural, or construction standards. Furthermore, various improvement methods should be proposed to enhance the quality of buildings by minimizing defects. One such method is Six Sigma, a quality improvement approach widely implemented in manufacturing and other industries. However, its application is relatively new to the construction sector. This paper delves into the foundational concepts of Six Sigma, its principles, methodologies, and various mechanisms employed to reduce defects. The findings indicate that adequate training, management support, and minor adjustments to current work procedures can significantly enhance quality, ultimately boosting customer satisfaction, which is paramount.

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

" “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.b465-b473, May-2025, Available :http://www.jetir.org/papers/JETIR2505154.pdf

" “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. ppb465-b473, May-2025, Available at : http://www.jetir.org/papers/JETIR2505154.pdf