On site when it matters

Ground conditions during construction don't always match the investigation. Timely inspections catch problems early and keep your build moving.

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We inspect and test the geotechnical parts of your project and provide the sign-off council needs at completion.

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When you need us

• Pile drilling and foundation excavations

• Retaining wall construction and drainage

• Earthworks and fill placement

• Subgrade preparation for slabs and pavements

• Unexpected ground conditions on site

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What's included

• Foundation and pile inspections

• Retaining wall and drainage inspections

• Earthworks observation and compaction testing

• Site visit records and photo logs

• Advice when ground conditions change

• PS4 construction review statements

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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.

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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.