Rework: What It Costs and What Prevents It

Published estimates of what rework costs a project range from 0.38 per cent of contract value to 20 per cent — a spread that reflects differences in definition, denominator and sample rather than real variation in performance. This report traces the best-known figures back to the studies that produced them, separates measurements from inferences layered on other people's medians, and sets out what the Indian public-works regime requires when work is found defective. Every measured rework-cost figure in it comes from outside India. It covers the economics of rework and its prevention; ARG's separate report on quality assurance covers the inspection machinery that detects non-conformity.

Part of AECS Research Global's publications programme — drawing on ARG's work across cost management, EPC advisory and integrated project delivery. Download the full report below.