The breach happened on 27 January last year at a property in St. Martin.
The Royal Court heard on Friday that the company “failed to ensure the health, safety and welfare of its employees as it allowed construction work to take place by providing access to the work area using a working platform that was in an unsafe condition.”
The charge continued that, as a result of this failure, two employees were exposed to the risk of injury while working at height and one of them was injured when they fell.
JP Mauger, who was represented by Advocate Adam Harrison, admitted this charge with a basis of plea that was accepted by the Crown.
A second charge, of failing to put into place suitable measures to prevent anyone falling from the working platform, was not admitted, with the Crown agreeing not to pursue this further.
The case was adjourned until 19 March for sentencing.
JP Mauger’s managing director, Tadhg MacFirbhisigh, was in court on behalf of the firm.