Installing insulation beneath your floors can help you keep your abode more habitable in the winter, reducing the amount of heat lost through a layer of flooring. There are various modern insulations that one could consider using to provide thermal comfort - including fibreglass batts, cellulose fibres and foam boards. These variables alongside installation costs will depend on factors such as insulation type; length of cable required; ease-of-accessibility as well as budget constraints when establishing projected price points for installing underfloor insulation in NZ ranging from $2-$6 per square foot.