All great ideas start with a solid foundation.

Whether you're building your first home or managing your next big project, we’re here to support you every step of the way. As a boutique, Sydney-based consultancy, Solid Foundation Geotechnical (SFGEO) delivers tailored, hands-on engineering services across residential, commercial, industrial and infrastructure projects.

Whether it’s your first home or your hundredth commercial space, we bring personal service, a responsive approach, and genuine care to every project. We take pride in being small enough to work with you directly, yet experienced enough to deliver results on time, at any scale.

Clear advice. Reliable service. A solid foundation from the ground up.

Our Services

From the ground beneath to the final build, we provide trusted expertise and seamless support at every stage, turning complex challenges into smooth, successful outcomes. Explore how our tailored services bring your project to life:

Geotechnical Assessments

Planning to build, extend, or develop? We deliver site classifications, geotechnical investigations, and footing inspections to support early-stage design and approvals

Construction Phase Support (CPS)

Need a sigh-off fast? We support you with on-call inspections, documentation, and input for temporary works

Civil Earthworks

On-the-ground advice for contractors Including proof rolls, subgrade inspections, foundation checks, remediation, and more

Project Management

Need help running part of your project or all of it? We step in where you need us - coordinating contractors, inspections, and approvals to keep things moving