Call (02) 9133 1329Request a quoteGeotechnical resources
Useful, plain-English guidance for homeowners, builders, architects, structural engineers and developers across Sydney and New South Wales. These guides explain common questions while recognising that reliable advice must respond to the individual site and project.
Practical guides
Understand report costs, residential site classifications and when retaining-wall projects benefit from project-specific geotechnical input.
2026 Sydney cost guide
Geotechnical report costs in Sydney explained: site classifications from $750, investigations from $2,200 and the project factors that shape a quote.
Read the guideAS 2870 homeowner guide
Understand AS 2870 site classifications A, S, M, H1, H2, E and P, reactive clay and what a Sydney soil test means for footing and slab design.
Read the guideRetaining wall planning guide
When a Sydney retaining wall may need geotechnical investigation, what the engineer assesses, and what to provide for a project-specific quote.
Read the guideNeed project-specific advice?
We can help identify an appropriate investigation scope for your Sydney or NSW project.