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What our clients are saying


“Southern Geophysical provide a practical, honest and quality service. I would go nowhere  else for geophysical investigation works”   

Rowan Cook
Senior Engineering Geologist

Tonkin + Taylor

“I appreciated how easy it was to communicate with the SGL team on a project with  changing timeframes and requirements, making it much easier for me to manage remotely.” 

Hannah Udell
Engineering Geoplogist

Leighs Construction

“We employed Southern Geophysical to complete services locations at our Hillmorton Special Mental Health Services project. Southern Geophysical provided a great service, not only with on-site location and identification of services but also with providing post survey information and documentation that ensured we could continue excavation works confidently and safely.” 

Jack Quarterman
Site Supervisor


"I have worked with Mike and his team at Southern Geophysical investigating many buildings since 2017.  They have provided me non-destructive test data on various types of structures that assists with structural building assessments and developing repair strategies.  I have used Southern Geophysical help to determine if there are voids under slabs, if deep concrete piles are cracked at depth, testing of concrete panels to determine if epoxy injection has fully penetrated the crack, and determining steel reinforcing in concrete structures."

Daniel Langford
Structural Engineer/Director

Blueprint Consulting Engineers

“The team at Southern Geophysical provided reinforcing scanning services on a recent project. With a good understanding of the science behind the scanning equipment and its limitations, their team completed scanning as requested, interpreted the results and provided a clear report with summaries of findings including site photographs of scan locations and scan printouts. Southern Geophysical were very easy to deal with and will be our go to team for detailed concrete scanning works going forward.“  

Harry Finlay
Structural Engineer

Lattey Group

“We have used Southern Geophysical on several occasions to do Cross Hole Sonic Logging and Low Strain Dynamic Pile Testing on piling projects across the North Island. Their team is professional, pleasant to work with, and most importantly flexible and willing to fit in with changing schedules and produce reports in a timely manner. We now use Southern Geophysical exclusively for all our pile testing projects and highly recommend them to other contractors.” 

Mark Donnelly

Josh is a Sparky Ltd

“SGL cleared dozens of core hole locations for us during upgrades to community housing, they were flexible on times and got the job done. I’d happily work with them in the future.”

Josh Sigglekow

Southern Geophysical Ltd

3/28 Tanya Street


Christchurch 8062

New Zealand+64 3 384 4302

Contact us

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