So often I hear builders say that quality may work in manufacturing plants, but not out here building homes. Well of course it does work, but hearing that from a successful builder is ideal. Here is a link to a short video featuring Gary Zajicek, VP of Construction and Customer Relations at Veridian Homes in Madison WI. Gary talks about the impact of using Quality Management Systems, in this case the NAHB Research Centers, National Housing Quality Certification program for Builders and Trades which is based on ISO9001.
https://www.homeinnovation.com/qualitycertified
For a detailed case study on Veridian Homes go to this link to access a pdf.
http://www.toolbase.org/Best-Practices/Quality-Management/quality-management-high-performance-homes