England: housing insulation from 2008 to 2021, by measure

All measures of improving the energy efficiency of dwellings saw an increase over the period. The most common measure throughout these years was full double glazing, increasing from 70.8 percent of houses in 2008 to 87.5 percent of houses having full double glazing in 2021. Use of cavity or solid wall insulation also increased during this time period, reaching a share of 49.3 percent of dwellings in 2021. Finally, loft insulation usage saw the largest increase, having risen from 21.1 percent of dwellings in 2008 to 39 percent of dwellings in 2021. There were around 24 million houses in England in 2021.