Green Footsteps works with contractors on larger projects involving individual properties or groups of properties, as well as commissioned research and investigations.
Diane Hubbard is a co-author of the SPAB (Society for the Protection of Ancient Buildings) Building Performance Survey Interim Rports 2011,2012 and 2013 which examine a group of owner occupied dwellings before and after refurbishment.
https://www.spab.org.uk/advice/energy-efficiency/
She has also produced a technical paper for Historic Scotland on electric infrared heating in a 19th Century dwelling.
http://www.historic-scotland.gov.uk/technicalpapers#.Uylak_-PPIU