Wairarapa landlords are lagging behind homeowners in taking up a Government offer for free home insulation.
More than 600 owner-occupied properties have been insulated in the region since the scheme began, compared with less than 300 rental properties.
Energy Smart's general manager James Gallagher says this could be because landlords - particularly those owning multiple properties, don't know whether their tenants meet the requirements for the scheme.
"What they need to know is whether their tenants have a Community Services Card," he said.
But some landlords might think asking is "a bit cheeky". "It's a bit like asking someone how much they earn."