nextGenergy energy assesses homes in Scotland, producing Energy Performance Certificates listing recommended energy-saving improvement measures.

Red specialise in recycling buildings to meet the highest standards, reusing what we can to make them fit for the future.

Parity Projects are award winning experts in reducing the energy and CO2 emissions of existing homes.

GSD Architecture is a Nottingham architect’s practice specialising in environmentally responsible domestic retrofit, extensions and new-build.

Ecomorph is the energy efficiency advice service set up by SuperHomer Sue Roberts to help householders reduce their bills and carbon emissions. The company can arrange domestic energy surveys with Energy Performance Certificates. The service dovetails with the refurbishment of Glebe House, where ideas were tested. For more information see www.ecomorph.org

EcoHouseNet, founded by Dr Tina Holt, offers consultancy for householders. This includes free and low cost ways to save energy, medium cost measures and grants or cash back schemes, and consultancy on whole house refurbishment or even extensions and new builds.

Eric Fewster is a Certified Passive House Consultant specializing in retrofit work in the UK. Using proven Passive House methodology as well as thermal bridging analysis, he can help homeowners plan exactly what energy efficiency measures to carry out in order to achieve specific energy or carbon reduction targets.

Carbon neutral eco guesthouse (and SuperHome) in heart of Snowdonia and, according to The Guardian, “one of the greenest bolt holes in Europe”.

greentomatoenergy advises clients on how to reduce the energy consumption of their buildings. This helps to reduce utility bills and CO2 emissions and importantly, improves the comfort levels of the property. greentomatoenergy also provides installation services for many of the measures it recommends.

Itteringham Mill in the Norwich area is a guest house with a difference. It is also a SuperHome! This means it is a great place to stay if you want to find out what it feels like to live in a converted mill that has been made over 60% more carbon efficient by a major retrofit and innovative use of renewable energy.