A leading Australian manufacturer operates a major production facility in Victoria. The facility had experienced ongoing slab settlement within an oven production area, resulting in uneven floor levels, localised floor deformation, minor cracking and concerns regarding the support beneath the slab. The client required a specialist ground engineering solution that could address the underlying voiding and weakened ground conditions while improving floor levels and maintaining the functional drainage falls incorporated into the floor system. Due to the operational importance of the facility, the works needed to be completed within a tightly controlled shutdown window.