Hundreds of firms left holding bills have been detailed in a report filed at Companies House by administrator Duff & Phelps.
The report said CPUK had been trading since March 2000 employing around 100 staff working on new build and refurbishment jobs worth up to £25m.
It was brought down by losses on major contracts caused by late payments and materials price increases.
That was exacerbated by the impact of Covid-19 which led to the closure of the company’s sites.
The biggest problem job was The Rise student accommodation scheme in Liverpool where the project funder went into administration and work stalled leaving CPUK with a £3m bad debt.
Duff & Phelps said unsecured creditors could get some money back but it is “uncertain” how much that would be.