Kirklees Council in Yorkshire has come out top in a table of local authorities which have installed the most insulation in their housing stock over the past two years.

Kirklees fitted loft and cavity wall insulation to 22.5% of its homes. Runners up were the Isle of Anglesey (18%) and Carmarthenshire (14.6%).

And the council which had the lowest take up of the government’s energy saving scheme was right on Parliament’s doorstep – Westminster, with 0.2%.

Other low performers were all London boroughs: Kensington and Chelsea (0.5%); Tower Hamlets (0.5%); Hammersmith and Fulham (0.7%); Southwark (0.7%).

The survey was carried out by the Energy Saving Trust to find out how much loft and cavity wall insulation was professionally installed in each local authority and parliamentary constituency between 2008 and 2010 as part of the government’s requirement on energy companies to help consumers save energy, the Carbon Emissions Reduction Target.

In June, the government announced that the CERT would be extended to 2012. It is estimated the most energy inefficient homes in the UK could save, on average, around £550 per year by installing insulation measures.