Proud providers of world class building systems
Creating the highest performing envelopes at everyday prices

Te Toka - Winner of the ICF building awards 2022


PhD Building

We are the South Island distributors of Nudura ICF range of Integrated products and now adding the Viking timber double and triple glazed windows to our range. Both products exceed NZ standards for thermal performance by more than double, and can be used in passive house certified construction. 

With more than 30 years’ experience in building in NZ, both on our own extensive property developments and for clients. Now living in Otago, we focus on providing the highest performing building envelope materials.


Nudura ICF – We bring Nudura Insulated Concrete Forms to New Zealand

Cost effective, Fast, Energy efficient, 100 year minimum durability

The focus of today’s property owners, designers, builders and property developers is to build environmentally sustainable buildings, using the latest energy efficient building materials. Improving the thermal performance of the building envelope with the NUDURA ICF wall system is the easiest, fastest and most cost-effective way to reduce build and energy costs. Costing the same as plain masonry block, approx $250 per m2 but with 14 times the insulation level already installed!!

Viking timber windows and doors

Quality and Latest Technology certified by Passive House Institute in Germany

Our windows are for cool temperate climate. With different sizes and styles available to choose from, we create for you a uniquely specialized product.

Services Provided

  • Distributor of Nudura ICF and Viking Timber windows.
  • Training and supervision of builders in ICF
  • Design assistance to designers to enable minimal waste on site and reduced build times
  • Full design and build service available drawing upon our experienced award winning builder partner companies.
  • Supply only contracts for ICF or supply and full installation available.


Hear from some of our happy customers, builders, developers, owners, architects. Reach out to them to get first hand their experiences with our products and service.


Latest Case Studies

Nudura, Viking

Viking Windows2


Viking Windows


OHIR – Nudura Polyblock System