Grout Injection is a proven solution to stop subsidence, support foundations, and improve soil stability — trusted by builders, engineers, and property owners across WA.

 Grout Injection — also known as Permeation Grouting — is a highly effective ground improvement technique used to strengthen weak soils, stabilise foundations, and stop ground movement. The process involves injecting a specially formulated grout under pressure into the ground, filling the spaces between soil particles to create a solid, stable mass. This improves soil strength, reduces settlement, and increases load-bearing capacity.

Grout Injection is widely used across WA for a range of projects — from residential underpinning to commercial building support, civil infrastructure, excavation retention, and heritage structure stabilisation.

The type of soil is a key factor in the success of Grout Injection. Coarse, granular soils like sand allow the grout to flow and bond effectively. In contrast, low-permeability materials such as clay, silt, or rock can restrict grout flow, requiring alternative techniques.

Whether you’re looking to strengthen soil for a new build, stabilise a subsiding structure, or support a major infrastructure project, Grout Injection offers a proven, versatile solution — delivered WA-wide by our expert team.