Building a sustainable future with precast concrete

Auckland based and supply Northland, Waikato & Bay of Plenty Regions.

Concretec New Zealand is one of Auckland’s preferred and largest suppliers of pre-cast concrete.  Based in Bombay South Auckland within 40 minutes of Auckland CBD, Concretec is ideally positioned to service projects across the Greater Auckland, Northland, Waikato and Bay of Plenty regions.  We partner with trusted, reliable transport companies who work with us to provide the right service to meet our Clients specified needs.  

We can supply to the largest and smallest projects.

Since inception in 2005 Concretec has supplied an extensive range of precast concrete products to over 750 construction projects, and is typically involved with the most prestigious and largest of these, but are equally comfortable supplying small one off projects as well.

Purpose built premises

With a purpose-built site at Bombay.   Concretec has the ability to take on the largest of precast projects but can still manage small one-off projects with ease.  

In 2021 Concretec opened it's 5th factory dedicated to pre-finishing work that reduces costs, allows higher quality in factory work, accelerates build speed on site, and removes some hazardous site activities such as working at height.  The work completed in "factory 5" includes applying special surface finishes such as oxides and stains and installing windows and electrical components into panels.

Health and Safety, Quality and Environmental management is integral with our culture

Concretec operates and is certified to ISO45001 Health and Safety, ISO9001 Quality standards, and is a certified supplier under the national Concrete NZ – Precast Sector accreditation system.  We are working towards implementing ISO14001 - Environmental Management  (due in 2025)  and embrace the continuous improvement philosophy to progressively improve all areas of management. 

See our Integrated Management System (IMS) Policy Statement here

Managed by its owners

Concretec New Zealand Ltd is managed by its owners who understand the importance of commitment to quality and service to help their clients achieve project success. 

Collectively Concretec's Management team have many decades of building industry experience both locally and internationally with a balance of production, project management, and engineering skills.  We have 100 total employees and contractors based at our Bombay site.  

Sustainability – An efficient green site

Our Bombay operation has a light environmental and services footprint been self-sufficient in water supply, and sewage treatment.  We have planted a greenbelt on the property and have planted approx. 2500 native trees and shrubs plus a number of fruit, olive trees and grape vines.  In December 2020 we further decreased our environmental footprint by becoming 70% self-sufficient in electricity supply with the installation of a 102 kW solar array.  The solar panels supplier, REC, has been selected as they supply the lowest embedded carbon panel on the market, with the energy intensive manufacture of silicon wafers done in Norway, a country that has 96% renewable energy supply via hydroelectric and other renewable energy sources.  With New Zealand still needing to burn coal and gas to top up the supply of hydroelectric and other renewable energy sources, the reduction of demand on the national grid of approx. 120,000 kwhrs per year from Concretec's solar panel system could reduce New Zealand emissions by over 50 tonnes per year by helping reduce gas & coal burn.

Concretec is also proud to have helped with our native bird life recovery with hundreds of specimens including the Tui,  Kereru, tīwaiwaka (fantail) and mātātā (fern bird) now calling the site home.  We also support the programme of eradication of invasive species that prey on our native birdlife.

Sustainability – Use of lower carbon concrete

Since 2021 Concretec has introduced methods of reducing the carbon footprint of concrete. 

Use of pozzalanic materials: Pozzalanic materials have been introduced to our concrete to reduce the amount of cement required in concrete.  A pozzolan is a siliceous or siliceous and aluminous occurring material that in itself possesses little or no cementitious value but will, in finely divided form and in the presence of moisture, chemically react with the calcium hydroxide at ordinary temperatures to form compounds having cementitious properties. Common pozzalanic materials are flyash and slag, both waste products from industrial processes with very low embodied carbon.  As cement is the highest carbon component of concrete, any reduction of cemement reduces the overall carbon footprint of concrete, or GWP (global warming potential) as commonly termed today. 

Vertical integration

To ensure excellence in supply of cut and bent reinforcing, in 2020 we have established a purpose-built reinforcing cut and bend processing business on site, which is seamlessly integrated into the Concretec supply chain, reducing critical lead times and improving the ability to raise quality standards.

    1. Rainwater Storage Tanks – 8x 30,000 ltr tanks

    2. 102kw Solar Array

    3. 2 x 150 man Sewage systems

    4. Reserve Areas – over 2500 native trees & shrubs planted

    5. 4 x Stormwater Settling ponds             

    6. Wetland Run off to Pond

    7. Vineyard, Olive and Fruit Trees Area

    8. Recycling Stations for wood, metal, cardboard and plastic

    9. Manuka Honey Bee Hives

  Concretec NZ Ltd Head office and factories.                                                                              View looking east showing storage yards for finished precast items.

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