Contact Us

DJ MATHESON Christchurch 027 444 9774 EMAIL DJ
MARTIN WILSON Wellington 027 449 5408 EMAIL MARTIN
MARK FREEMAN Wellington 021 898 725 EMAIL MARK
ALEX WILMSHURST Nelson/Kaikoura 027 488 2849 EMAIL ALEX
GARETH HALLAM Christchurch 027 208 0592 EMAIL GARETH
MURRAY THESSMAN Wellington 027 262 4333 EMAIL MURRAY
ANDREW LILLIG Wellington 027 542 0536 EMAIL ANDREW
LEONIE STEAD Christchurch 027 550 0667 EMAIL LEONIE


15 Bute Street, Wellington
PO Box 27467, Wellington 6141

04 801 5336 enquire


26 Thackers Quay, Woolston,
Christchurch 8023

03 384 0336


Stabilising cliffs and steep ground

Our geotechnical team provides ground engineering to hazardous, unstable and geologically active cliffs that can pose significant risks to infrastructure and transport networks.

Our comprehensive knowledge of materials and systems means we can design the best and most cost-effective solution for any situation. We also have explosive expertise, with five certified shot-firers in our team, experienced in all types of drill and blast projects.


  • Site investigations
  • Scaling cliffs and batters using hand tools and airbags
  • Drilling: pneumatic and hydraulic cliff face drill rigs; DTH and top hammer systems
  • Self-drilling anchors: Ischebeck and Weldgrip
  • Grouting: rock anchors and soil nails
  • Installing active and passive wire mesh systems: GeoFabrics PVC coated double twist mesh. MacMatR, HEA panels and PVC coated cable reinforced HR netting
  • Installing catch and attenuation fences capable of impact energies 500kJ to 5000kJ
  • Use of explosives: high explosives and low-velocity explosives
  • Shotcreting with synthetic fibre reinforcing
  • Testing of rock anchors up to 600kN

Download our capability statement.