Our Team

Gemma Jonker

Ext. 1

Senior Administrator

Gemma is the organisations senior administrator and the person best to speak to with regard to any future relationship within the company. Call her any time.

Stephen Greening

Ext. 2

Ground Civil Technical and General Enquiries

Steve works at company management level and is involved with sales and local positioning of the company. His extensive knowledge of the industry and ability to bridge the gap between design and construction has made Steve an industry leader in this field.

Ross Weymouth

Ext. 3

Land Stabilisation and Retaining Walls

Ross is the group manager and the companies main Quantity surveyor. His extensive tertiary training and hands on approach has made him a leader within the company and his peers. Ross will receive and assist with both price and design, this through his 11 year’s experience in the ground stabilisation industry.

Steve McManus

Ext. 4

Ground Civil, Earthmoving and Drilling Manager

Steve works at company management level , site manager and overall manager of the civils department in Wellington NZ. He has been with the company and its associated companies for 15 years and is seen as one of the main group influencers. Contact Steve anytime with your earth moving or civil construction requests.

Hayden Mckenzie

Ext. 5

Deconstruction and Emolition Manager, Environmental Manager

1Geo’s in house QS and Demolition manager. Hayden has had 15 years experience in renovation and construction both in New Zealand and Europe. He is our front line waste stream facilitator. He is himself is a 4801 qualified asbestos removalist . Hayden has deep routed experience in the industry and can assist with all of your queries.


Ext. 6

Technical and General Enquiries

This line will get you to Gemma, whom will direct you to the right person for your enquiry.

We invite you to meet our team and see them at work and play.