Earthworks done right, first time

Good earthworks set up everything that follows. Poorly placed fill can lead to settlement, cracked slabs and costly rework.

​

We specify, observe and test earthworks so platforms, pavements and lots perform as designed, and you have the records council needs.

​

When you need us

• Building platforms and cut-and-fill sites

• Subdivision bulk earthworks

• Engineered fill under slabs and pavements

• Removing or treating unsuitable ground

• Certifying fill for 224c or building consent

​

What's included

• Earthworks specifications and fill criteria

• Inspection of stripped and undercut areas

• Fill compaction testing (shear vane, Clegg hammer, Scala)

• Subgrade testing for pavements

• Earthworks completion reports and fill certification

​

How it works

1. Send us your plans and the site address.

2. Desk study. We review geology maps, the NZ Geotechnical Database, council records and historic aerials.

3. Proposal. You get a clear scope, fee and programme.

4. Site work. Our team carries out the fieldwork or inspections with minimal disruption to your site.

5. Report. Clear findings and practical recommendations.

6. Ongoing support. We answer council RFIs and support you through design and construction.

​

Why Gibb Ritchie

• Principal-led. A director is involved in every project, from scope to sign-off.

• Chartered professionals. Work led by Chartered Professional Engineers (CPEng).

• Local experience. We know Auckland's ground, from North Shore clays and Waitematā rock to volcanic and reclaimed land.

• Practical advice. Solutions that are technically robust, commercially realistic and fit your project.

• Responsive. We know geotechnical input is often on the critical path for design, consent and construction.

• With you to the end. The same team supports you through consent and construction.