The Retrofit State of the Nation Survey has tracked the perceptions of social housing sector professionals’ views of retrofit since 2010. It has taken the form of three surveys conducted in 2010, 2013 and 2015. The research takes the form of a cross-sectional attitudinal, self-completion survey, covering sections considering the adoption levels and perceived effectiveness of different retrofit technologies. The target sample was medium- to larger-scale registered social housing providers. The survey provides a record of the changing attitudes of social housing providers to specific technologies over the period of 2010-2015, which has seen significant changes in the energy and social housing policy. The findings show the link between policy instruments and adoption, with policy instruments mapping to adoption in the sector. Moreover, perceived effectiveness reflects a preference for more established technologies: whilst the housing sector has adopted a wide range of technologies, the reliance on tried and tested technologies is apparent, with emerging or more complex technologies having declined in perceived effectiveness over the period.