A Brentford company director has been convicted for the manslaughter of two Polish workers after they plummeted to the ground from a balcony.

Martin Gutaj, 44, of Ferry Lane, Brentford and his company Martinisation London Limited were found guilty for the death of Tomasz Procko, 22, and Kyrol Szymanski, 29, at the Old Bailey on Friday 19.

The emergency services pronounced Mr Procko dead at the scene and took Mr Szymanski to a central London hospital in a critical condition on November 21, 2014, but sadly he did not survive.

Nick Vamos, from the CPS, said:“Martinisation Ltd and its director Martin Gutaj showed an appalling disregard for the safety of their employees, with terrible consequences.

“Sadly, this incident was entirely foreseeable and preventable. Neither was it an isolated breach.”

The Polish men had been working at a construction site in Cadogan Square, as directed by the company, performing heavy lifting tasks at height without the necessary training and supervision.

The victims had been attempting to haul a heavy sofa up onto the balcony using ropes when the Victorian railings gave way.

There was no plan, method statement or risk assessment given to the workers before they commenced the task – exposing them to the risk of serious harm.

“The evidence put forward by the prosecution clearly demonstrated to the jury how these tragic deaths were part of a pattern of serious neglect of basic health and safety.” Mr Vamos added.

“Our thoughts are with the families of Tomasz and Karol.”

Mr Gutaj and his company denied corporate manslaughter and related health and safety offences but have been charged for failing to ensure the health, safety and welfare of the employees.

It has been heard that an experienced and reputable lifting company had given advice to Martinisation Ltd but it was ignored due to time and budgetary constraints.

The director has been found to have failed to adhere to his responsibilities for the health, safety of his employees as required by section 33 (1) and section 71 (1) of the Health and Safety at Work Act 1974.

Martinisation London Limited was found guilty of corporate manslaughter for both men violating section 1 (1) of the Corporation Manslaughter and Corporate Homicide Act 2007 and section 33 (1) and section 71 (1) of the Health and Safety at Work Act 1974.

Detective Sergeant Simon Rogers from the Homicide and Major Crime Command said: "Martinisation London Limited and the operation director Martin Gutaj failed in their duty of care to protect the men.

"This was a complex investigation led by the Metropolitan Police Service who worked closely with Heath and Safety Executives over a 30 month period.”

Gutaj was bailed to appear at the same court on July 7 for sentencing.