Tiger EPC advices caution when using these sites never disclose personnel information/Bank details, unless you are sure you know who you are dealing with.
http://actonco2.direct.gov.uk/actonco2/home.html
Information EPC New Homes (builders)
http://www.tigerepc.com/EPCnewhomes.pdf
http://www.HomeStandards.co.uk/Directory
Information about Britain
http://www.information-britain.co.uk