Get AssessmentHeat rises, and in an uninsulated home, a quarter of heat is lost through the roof. Insulating your loft, attic or flat roof is a simple and effective way to reduce heat loss and reduce your heating bills.

Loft insulation is effective for at least 42 years and it should pay for itself many times over.

How much you can save

loft insulation table

Estimates based on insulating a gas-heated home with either a totally uninsulated loft, or topping up existing insulation from 120mm to 270mm.
(The recommended depth for mineral wool insulation is 270mm but other materials need different depths).
*Average unsubsidised professional installation costs, although these will vary.