East Herts Council offer home insulation grants and information on loft and cavity wall insulation
How green is your home – Section of Green Our Herts with energy saving tips
The Passivhaus Trust is an independent, non-profit organisation that provides leadership in the UK for the adoption of the Passivhaus standard and methodology. Passivhaus is the leading international low energy, design standard
BREEAM is the world’s leading sustainability assessment method for masterplanning projects, infrastructure and buildings
Open Eco Homes run by Cambridge Carbon Footprint gives free advice from local householders with open days each year
Warm houses – where does the energy go and what you can do about it – (Leaflet from Cambridge Carbon Footprint)