London-based Leyland SDM has been fined £450,000 after four workers fell more than 3 m during a redevelopment scheme.
The decorators’ merchant was redeveloping its own warehouse in Wembley when a platform gave way and the men fell 3.5 m.
According to the Health and Safety Executive, the workers were moving a ventilation unit when the platform became overloaded and gave way.
Two of the men suffered leg fractures while other injuries included a broken collarbone.
The HSE said the work at height and lifting operations were not planned properly and that Leyland SDM did not have the right level of trained personnel and supervision in place.
The company, based at Fourth Way, Wembley, pleaded guilty at Westminster Magistrates Court to breaching regulations 6 (3) of the Work at Height Regulations 2005 and regulation 4 (1) of the Manual Handling Operations Regulations 1992.
It was fined £450,000 and ordered to pay costs of £1,038.
HSE inspector Jack Wilby said: “The safety failings by this company are severe and it is lucky that the injuries were not more severe.
“This incident highlights the importance of planning work, in this case both for lifting operations and working from height, to ensure it is carried out safely.”
Leyland SDM declined to comment.