Research shows councils could have a key role in advising residents on home energy-saving measures.
An Ipsos MORI survey found that 48% of people with no loft or cavity wall insulation, draught exclusion or radiator thermostats would be more likely to invest in energy-saving measures if they had help from a friend or independent adviser.
But respondents gave the thumbs down to advice from contractors for energy companies - suggesting this as an area ripe for local authority development.
Regionally, London had the worst levels of energy efficiency measures in England - 31% of respondents had no loft insulation, compared with 3% in the East Midlands or 4% in the North East.
Source: Environmental charity Groundwork (www.groundwork.org.uk)