What Auckland clients say
“Sam and the team at Chambers Consultants are absolute professionals and provide excellent service and communication. They helped us recently with a complex pre purchase inspection and saved us from making a big mistake!”
Jeremy M., Google review
“The team was professional, reliable, and delivered high-quality results on time. Very responsive and easy to work with—I highly recommend them for any geotechnical needs.”
Hossein G., Google review
“Good reliable Consultant Engineers, technically sound.”
Shahid A., Google review
Read all reviews on Google · Geotechnical engineers in Auckland · What a geotechnical report costs
Frequently asked questions
What ground investigation methods are used in Auckland?
The common methods are hand auger boreholes with Scala penetrometer testing for shallow residential work, machine boreholes with SPT for deeper or more complex sites, cone penetration testing (CPT) where continuous profiling or liquefaction assessment is needed, and machine excavated test pits where the near-surface profile and fill need to be seen directly. Method selection depends on the expected geology, the depth of interest and site access. Auckland sites frequently combine hand augers with a limited number of machine holes.
Do I need service location before drilling?
Yes. Before any intrusive work, underground services should be identified through a beforeUdig enquiry and confirmed on site by cable and pipe location, with hand or hydro excavation of the starter pit where there is any doubt. This is a health and safety requirement, not an optional extra, and it applies to private services on the property as well as network assets in the road reserve.
How many boreholes does a site need?
There is no fixed number. The investigation must be sufficient to define the ground model across the footprint and to demonstrate consistency, so a small flat site with uniform geology may be adequately covered by three to four points, while a sloping or filled site, a subdivision, or a site with variable geology needs enough coverage to show how conditions change across it. A single point is almost never defensible for a consent application.