Hawke's Bay Regional Council is urging residents to stay warm this winter with sufficient insulation.
The HBRC Procurement Manager Mark Heaney says many Hawke's Bay homes are "unhealthy and cold", which can impact the health of residents.
"It's so important for homes to be healthy, warm and dry, especially for children and the elderly," he said.
"Getting insulation can make a huge difference to the warmth and comfort of a home. It also means that heat stays inside, making it cheaper to heat and healthier to live in.
"Insulation and ventilation work well together to provide a more comfortable home and we're encouraging people this winter to look at installing these systems in their homes through our Sustainable Homes programme."