GeoStabilization New Zealand Ltd
GEOENGINEEREDRESILIENCE.
When the ground moves in New Zealand, GeoStabilization New Zealand Ltd engineers the resilience to hold it. Slope stabilisation, rockfall mitigation and ground improvement — deployed fast when it matters most.
New Zealand's Leading Geohazard Mitigation Specialists.
GeoStabilization New Zealand Ltd (GSI) is New Zealand's leading geohazard mitigation specialist and geotechnical engineering contractor NZ-wide. For nearly thirty years, we have designed, built, and delivered slope stabilisation New Zealand solutions — rockfall mitigation NZ, landslide repair contractor services, and ground improvement — across transport, mining, rail, and infrastructure projects from Auckland to the West Coast.
Whether you're dealing with a state highway closure following a landslide in Hawke's Bay, rockfall threatening a Canterbury road corridor, or a Wellington hillside home at risk — GSI has the engineers, equipment, and field crews to respond fast. Our design/build model means the same team that analyses your geohazard is the team that solves it. One contract. One point of accountability. No delays.
24/7 Nationwide
Active Slope Failure?
We Deploy Fast.
GSI maintains its own fleet of specialist equipment and trained field crews on standby nationwide. When a slope fails or a road closes, we mobilise within hours — not days. No sub-contractors. No delays.
Explore GSI
Solutions
From emergency slope stabilisation to specialist grouting, we cover the full spectrum of geohazard and ground engineering challenges across transport infrastructure, mining, commercial development, and residential sites. If the ground is your problem, we have the solution.
All Solutions →Projects
Every job is different — different geology, different constraints, different budget realities. See how we've repaired Cyclone Gabrielle damage across nine State Highway sites, stabilised a landslide beneath a partially built stadium, and introduced new ground improvement technology to New Zealand.
View Projects →About Us
GeoStabilization New Zealand Ltd is a tightly integrated team of engineers, geologists, operators, and rope access specialists. We're not a generalist contractor with a geohazard division — ground engineering is all we do. That focus means deeper expertise, better equipment, and faster response when it matters most.
Meet the Team →Not sure what you're dealing with?
Start with our geohazard problem guide — identify your issue and understand your options.
How It Works
Rapid Assessment
We deploy to site fast and assess the hazard. You get a clear briefing within hours — not days. No waiting for third-party consultants.
Engineering Analysis
Our in-house geotechnical engineers analyse the failure mechanism, soil conditions, and risk to life and infrastructure.
Design & Proposal
We design the solution and provide a clear, fixed-scope proposal. The team who assesses is the team who designs — no handoffs.
Build & Deliver
The same team that designed it builds it. One contract, one point of accountability. We stay on site until the job is done right.
Certifications & Affiliations
Get in Touch
Talk to an
Engineer Today.
Whether you're facing an active slope failure or planning ahead, we start with a free site assessment — not a sales pitch. Our engineers will tell you exactly what your site needs.
Get a Free Assessment