SFGEO | Solid Foundation Geotechnical

We are Solid Foundation Geotechnical, a locally-owned independent consultancy providing expert geotechnical and environmental services throughout Sydney. Our team specialises in delivering precise site data and soil testing to support confident construction decisions for both residential and commercial projects. Drawing on over 15 years of local experience, we provide practical, plain-English advice that removes the complexity from ground investigations. We believe in a personal approach where clients work directly with our senior consultants from the initial assessment through to final construction support. Our expertise is built on a foundation of major landmark infrastructure projects, including the Sydney Gateway and Western Sydney Airport. We prioritise clear communication and reliable data to ensure every project stays on schedule and avoids costly underground uncertainties. By combining high-level engineering knowledge with hands-on fieldwork, we deliver the dependable insights required for safe and cost-effective outcomes.

• Geotechnical investigations
• Environmental investigations and sampling
• Site classification reports (AS2870)
• Soil testing and geotechnical reporting
• Drill rig hire and fieldwork support
• Infrastructure Construction Support
• Geotechnical Desktop Studies
• Wastewater Management Reports
• Residential Site Classifications