Retentions have been used in UK construction since the 1840s. Yet today, many in the industry are questioning whether they still offer the security they once promised. Originally introduced during the railway boom, retentions were meant to protect projects. Today, they’re locking up billions in unpaid funds and pushing contractors closer to insolvency. In fact, it’s estimated that £3 to £5 billion is held in retentions across the UK construction sector each year, with much of it never recove...