About us

London Warm Zone (LWZ) has carried over energy efficiency improvements in over 50,000 homes in London.

Warm Zones cic, the parent company of LWZ, is a not-for-profit company wholly owned by the charity National Energy Action.

London Warm Zone (LWZ) evolved from the Government’s Newham Warm Zone pilot scheme launched in 2001 and has been highly effective in helping householders improve the energy performance of their homes. The not-for-profit structure means that the LWZ approach is consistently based upon the best solution available, rather than maximising income at the expense of customer satisfaction.

Over the last 10 years, LWZ has worked with 24 London local authorities delivering a comprehensive set of programmes to improve the decency and energy efficiency of people's homes. The programmes include council funded insulation programmes, GLA Decent Homes private sector thermal comfort scheme for vulnerable people and the London-wide RE:NEW programme to provide home energy checks and support with making homes energy efficient. Alongside this, LWZ addresses fuel poverty by increasing household income through a highly successful income maximisation programme which to date has raised more than £8 million.

EDF Energy supports much of the work of LWZ with its Carbon Emissions Reduction Target (CERT) funding for and also finances some of the organisation's core costs. LWZ also uses EDF Energy's substantial CERT funding to offer homeowners, regardless of their income, loft and cavity insulation at substantial discounts. The work is installed by LWZ approved contractors. Click here for details of prices