(from St Albans Council, www.stalbans.gov.uk/sustainability)
Herts Sustainability and Climate Change Partnership have now completed production of the Retrofitting your House Guide which is available for download at: https://www.hccsp.org.uk/building-retrofit.aspx.
The guide covers quick wins and demystifies larger measures such as heat pumps and renewable energy, covering all the major housing types in Hertfordshire. It also provides info on how to find contractors.