Precise CPT Services by Underground Investigation

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About Us

Accurate subsurface data shouldn't be a gamble. Since 2017, Underground Investigation has pushed CPT across northern NZ, completing over 4,000 tests for engineers who need dependable results. Precision is our standard.

Why Engineers Choose Underground Investigation

Data you can trust, from sites others can't reach.
We deliver reliable subsurface data.Here's what sets us apart:
Difficult terrain capability
we reach challenging sites where competitors can't, collecting data many others simply can't access.
Meticulous cone maintenance
we go the extra mile to prepare and maintain our cones, producing accurate, repeatable results every time.
CPT and Seismic CPT
comprehensive testing options for your investigations.
A proven track record
pushing CPT since 2017 with experience of 4,000+ tests behind every project.
Partner with a team that treats your data with the seriousness it deserves. Request your testing today.

Cone Penetration Testing

Cone Penetration Testing gives you precise, continuous subsurface data for confident geotechnical decisions. We combine proven methods with careful execution to deliver accurate, repeatable results on every site.
Talk to US today
+642 1147 3249

Seismic Cone Penetration Testing

Seismic CPT measures shear wave velocity alongside standard cone data, supporting liquefaction assessments and seismic design. Trust our experienced team for dependable measurements that inform safe foundation decisions.
Talk to US today
+642 1147 3249

Contact Us

Ready to discuss your next project? Get in touch with Underground Investigation Ltd today.
+642 1147 3249craig@undergroundinvestigation.co.nz
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