Our commitment to sustainable practice means we are on the continual  journey to mitigate together with our clients the impact  projects have on our future.  We appreciate that this will mean different considerations for different situations and we welcome the conversation.

Our huge experience in land damage assessments gives us the insight to know the value of accredited geotechnical testing and design. Our structural and land development teams also appreciate this interaction and all welcome enquiry from those needing support with initial ideas to complex detailed design and/or construction oversight.

Cook Costello have a multidisciplinary team of engineers, designers and and surveyors that are capable of delivering resilient and sustainable  design solutions for a wide variety of projects. 

We can help you with landslip repairs, retaining walls, foundations, and Geotechnical testing amongst the other services we can provide.

Have you considered geophysics and how this non invasive testing could support your project?

Please contact us to get your project started today.


We are keen to find our next Graduate Geotechnical Talents  for our graduate positions for 2023-24 are now open.


We have an impressive team of professionals that can determine just what your needs will be for your project. We can work with you to find a cost-effective design or solution.

Our projects

Our multidisciplinary abilities mean that we get the opportunity to work on a wide range of exciting projects. From the architectural design to structural and geotechnical engineering needs, the Cook Costello Team has the experience to deliver your project, guiding you through the process.

Historical Mansion Build

Whangarei Heads Holiday Home

The Palms Lifestyle Village

Paramount Plaza Commercial Extension

Kerikeri Scenic Subdivision

Auckland High-rise Detailed Seismic Assesment

The Landing at Marsden

Are you looking for a new challenge?

Are you a New Zealand experienced Structural Engineer  looking  to lead and develop a team we have opportunities at three locations? Perhaps a Geotechnical engineer  wanting to be part of the whole project?

We are looking to expand our team to meet the demand for our quality of services.