The body, set up to promote energy efficiency in homes and businesses, wants an agency to work on its consumer PR programme for 12 months starting next April. This may be extended for a further two years.
A key campaign will be to encourage consumers to use renewable energy in their homes rather than traditional fossil fuels.
This will start with publicising government grants to pay for half the costs of adapting homes with solar energy panels.
According to the trust's energy efficiency PR and media manager Wahida Ashiq, campaigning will focus on raising awareness of the amount of energy that is wasted each day and the damage that homes cause to the environment in terms of high CO2 emissions.
The Trust estimates that a quarter of all CO2 emissions come from homes.
Ashiq said: 'The focus of our work so far has been educational. This marks a change in direction to look at practical ways homes can adapt.'
Consumer PR for the last six years has been handled by Countrywide Porter Novelli. Ashiq confirmed that CPN had been invited to repitch for the account.
B2B PR is handled by Luther Pendragon, which was appointed earlier this year (PRWeek, 12 July), replacing CPN. For October's Energy Efficient Week the trust produced postcards of artists' impressions of the effect of climate change on landmarks in the UK.