And if you would like an expert to do it for you
Good news! As part of Budget 2012 the Government has extended the Warm Up New Zealand: Heat Smart programme, providing additional opportunities for homeowners to get support with installing insulation. If a house you own was built before the year 2000, you can get up to $1,300 (or 33%) towards the cost of ceiling and underfloor insulation and its installation by an approved provider.
And as one of the top insulation providers for the programme, The Pink® Batts® Be Snug Programme has already insulated over 15,000 homes.