Case study
Reducing rework with better QA/QC processes
How one contractor cut repeat non-conformances on a 48-storey tower by linking inspections to drawings and specifications.
A main contractor delivering a 48-storey residential tower reduced repeat non-conformances substantially over two floors of construction. The change was not more inspection. It was locating the data.
The problem
Non-conformances were being recorded diligently in a spreadsheet, closed out properly, and analysed almost not at all. The register showed a count. It did not show that a majority of a single trade’s defects were occurring in one riser detail repeated on every floor.
The change
Inspections were recorded against a schematic by floor and zone rather than described in a text field. Within two floors the heatmap showed the concentration, the detail was reviewed with the subcontractor, and the recurrence stopped.
Why it worked
Nothing about the inspection regime changed. The same people carried out the same checks. What changed was that the data became interrogable, which turned four hundred individual defects into one actionable finding.
Figures in this case study are illustrative pending client sign-off.
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