For a comfortable, healthy and environmental friendly home


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Homestar Certified Assessments

Thermal modeling 

Tips for renting and buying 

Retrofit double glazing











Thermal modeling (for H1 compliance or energy efficiency optimisation)


Thermal modeling of a house can be done in the design stage. For a low cost it is possible to model "what if" scenario's.


For instance: 

  • What effect does it have when I put 100mm polystyrene under the slab instead of 50mm?
  •  What difference does Low-E glazing make?
  •  Which cladding is more energy efficient?

 The software used is Accurate NZ.


This service can be used for H1 compliance by architects and designers.


This service can also be used for the home owner to optimize the energy efficiency of your house in design stage.



The cost of thermal modeling with Accurate NZ is $3.00 excl. GST per m2 of the plan.