M25 protesters warned insulating Britain's 'leaky homes' will cost £17.9billion

However, experts at Insulation4less have crunched the numbers to determine the cost of insulating Britain’s “leaky” homes is almost twice the estimate put forward by Insulate Britain.

According to Johnpaul Manning, MD of Insulation4less, the Government could look at spending nearly £18billion on the effort.

The average size UK attic is estimated to be about 581 square feet (54 square metres).

The company then factored in the cost of glass mineral wool and estimated labour costs to be about £692.14 per attic.

And with some 26 million UK homes in need of new insulation, the costs skyrocket to £17,995,640,000.

source: express.co.uk