Retired warehouse manager Kevin Gregory has a fully insulated house thanks to the Warm Up Foxton project.
Mr Gregory signed up during the Foxton Spring Fling a fortnight ago.
"Three days later they were at my house measuring up and in 10 days the insulation was in, ceiling and floor.
"It's excellent," he said.
The Warm Up Foxton project, launched a year ago and estimated to cost $5 million, provides free insulation to community services card holders, and up to 70 per cent discount for others.
About 600 eligible houses have had insulation installed, just over 500 for free.
There are about 400 households in the town still eligible, who need to register by March 2013.
Houses which do not qualify are those built since January 2000 and properties owned by Housing New Zealand, which has its own insulation scheme.
The project uses GreenStuff polyester insulation, installed by The Insulation Company, under contract to the Government's Warm Up New Zealand Heat Smart programme.
Nationwide, more than 180,000 houses have received insulation.
The Insulation Company managing director Andrew Pegler said they want to see Foxton become the first fully-insulated town in New Zealand.
"We're about 60 to 65 per cent of the way there now. That's a lot of people now living in warmer, drier conditions," he said.