Energy Performance direct will be offering green deal services once the scheme is up and running in 2012.
"Under the Green Deal, bill payers will be able to get energy efficiency improvements without having to front up the cash. Instead, businesses will provide the capital, getting their money back via the energy bill. At the heart of the offer is a simple rule: estimated savings on bills will always equal or exceed the cost of the work."
Please follow the below link for more info on Green Deal:
Green Deal Information