Consulting Engineers, Calibration

Certification & Compliance of Equipment

Your Engineering and Inspection Specialist in New Zealand.

Our History

Our company Design Engineering was established in 1991 in Timaru to provide structural steel inspection and welding qualification testing. Over the coming years the business expanded.

In early 2007 a branch was opened in Christchurch and one in Dunedin the following year. In 2014 a branch was opened in Hamilton. In 2018 Design Engineering acquired Survey NZ, a well-established business set up in Nelson. By this time the expanded business included civil and mechanical engineering, consulting, non destructive testing, welding inspections and equipment inspections.

In early 2021 a major restructure was implemented and DE Group was formed. The group includes three separate limited liability companies trading as DE Consulting Engineers & Inspection, DE Calibration & Compliance and Survey NZ.

As part of DE Group, DE Consulting Engineers and Inspection focuses on providing civil and mechanical engineering, non destructive testing, welding inspections and welder qualification testing as well as elevating work platform inspections. To find out how we can help you, visit our Services page or click here to get in touch.

There are 4 main areas DE Consulting Engineers & Inspection specialises in





We are committed to provide efficient service throughout New Zealand, as well as in Australasia and Asia, including Fiji, Samoa, Tonga, Vietnam, Korea, China and Nauru.

To ensure your business is moving forward as expected, when using our services, we carrie out regular internal and external audits on our ISO 9001 certified Quality Management System. This is to ensure it is maintained and functioning correctly, and all our staff remain competent in their respective duties.
We have experienced inspectors who can complete on and off site inspections. This gives you the insurance of minimal distruption on your business operations, enabling a fast and efficient turn around on your equipment.

We also have experienced engineers that can undertake a wide range of structural and mechanical design and consent process (PS1) including industrial; residential and commercial buildings; foundations and retaining walls; seismic assessment and strengthening of existing buildings (ISA & DSA); construction monitoring (PS4); and peer reviews (PS2).

DE Group Vehicles

If you would like to find out more about our services, or you have an opportunity for Design Engineering to assist with your engineering service requirements on any given project, and/or require a free quotation, please contact us


Engineering NZ