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
When do I need specific engineering design for foundations?
Specific engineering design is required whenever the building or the site falls outside the scope of NZS 3604. Common triggers are ground that does not meet the good ground definition, slopes steeper than about 1 in 5, fill of unknown origin or depth, expansive or soft soils, liquefaction-prone ground, spans or loads beyond the standard tables, and any structure where a producer statement for design is being relied on by council.
Should I use shallow footings or piles?
Shallow footings are used where competent bearing material is close to the surface and settlement is tolerable. Piles are used where the competent layer is deep, where the near-surface soils are soft, compressible or expansive, where there is fill, where uplift or lateral loads need to be resisted, or on slopes where the foundation must be tied into stable ground below any potential movement. The decision comes from the ground model, the structural loads and the settlement the structure can tolerate, not from cost alone.
What causes foundation settlement on Auckland sites?
The usual causes are consolidation of soft or compressible soils such as alluvium and peat, settlement of poorly compacted or uncontrolled fill, shrink and swell of expansive clays with seasonal moisture change, and softening from poorly managed stormwater or leaking services. Differential settlement, where one part of a building moves more than another, is what produces visible cracking, so the design target is usually to limit differential movement rather than total movement.