WIREDGOV

A London construction company has been fined £50,000 after four men were injured – two seriously – when the first floor of a house collapsed during building works. 

• Two workers were on first floor when collapse happened.
• “Lucky nobody was killed”, says HSE inspector.
• HSE guidance is available.

Aryn Stones Ltd had been contracted to build a new domestic property in Hampstead. On 31 May 2022, remedial works were being carried out on a partially built beam-and-block floor, when it collapsed, taking two of the workers down with it.

The two men include a welder, who is now 62, and a 31-year-old bricklayer. They both sustained life-changing injuries, while two other men who were standing at ground level were injured by falling concrete.

Work on the build began in March 2021 but by February the following year, engineers who inspected the property identified errors with the connections of the structural steel beams. This prompted the remedial works that led the structure to collapse. That came about when the welder was using an oxyacetylene torch to cut a steel beam supporting the first floor. However, at the same time, another worker had been removing some Acrow props that were supporting the beam.

An investigation by the Health and Safety Executive (HSE) found that Aryn Stones Ltd had failed to ensure the structure did not collapse while it was in a state of temporary weakness. The company also failed to put any measures in place to manage the temporary remedial work being carried out on the steel connections. They also failed to take all practicable steps to prevent danger to any person while the building was in a temporary state of weakness.

HSE guidance on managing health and safety in construction (PDF) and the management of temporary works is available.

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