Our work

Insulation & heating

We have around 60 projects on the go at any one time, each helping us meet our charitable goals of finding solutions to the threat of climate change and the misery of cold homes. Unless you're viewing this page on a mobile device, our projects below are organised by our work areas (home energy, local energy, research and policy analysis) and by topic.

External solid wall insulation has the added benefit of improving the house's appearance, as shown on the left-hand property.

Householder experiences of solid wall insulation

A solid-walled house in Somerset receives external insulation. The disruption is relatively minimal and the finished surface is attractive and ready for painting

Somerset West Home Energy

Bristol City Council leader Barbara Janke (holding the card) shows she's fully behind the Green Volunteers initiative along with CSE's Verity Saunders (third from right)

Draught-busting Saturday

33 into 1 doesn't go. A typical loft needs 25-35 rolls of insulation. Even the biggest cars would have to make several trips to the DIY store to pick this lot up

Free DIY loft insulation for Bristol householders

Preparing a cavity-walled home for insulation

Bristol Energy Efficiency Scheme (BEES)

How can Bath make its buildings fit for the 21st century whilst retaining its unique character and heritage?

PlanLoCaL: Low Carbon Bath

Policy analysis

After the exterior wall insulation this house felt warmer and was cheaper to heat. It also looked much smarter. Click on the thumbnails for 'during' and 'before' shots of the same house and a similarly improved property

Somerset West hard-to-treat homes

Housing Energy and Fuel Poverty Assessment Tool (HEAT)

Housing Energy and Fuel Poverty Assessment Tool (HEAT)

Policy analysis

The finished article – the property following the completion of its solid wall insulation work

Freedom from Fuel Poverty

Warm Streets Communities supports a range of grassroots organisations

Warm Streets Communities

Warm Streets will increase the number of adequately insulated homes in Somerset

Do urban communities in Wales experience higher levels of fuel poverty than rural communities?

Targeting energy efficiency resources in Wales

Policy analysis

What's the best way to tackle older solid-walled properties such as these in Bristol?

Tackling hard-to-treat Homes in South Bristol

Residents of a 'park home' in South Gloucestershire whose home was insulated with Sempatap Thermal 10mm latex foam

Park Homes Insulation Project

The insulation roll-out in Somerset continues

Somerset Warm & Well

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