I’ve had various cellulose fibre insulation quotes, should I go for the cheapest?

The cellulose fibre insulation is a vital component of your home, and to be effective both the quality of the material and the workmanship during the installation process is paramount. It needs to be installed at an extremely high density and checked carefully throughout the process to ensure that the fill is consistent and without gaps or less compact areas. If it is poorly installed, the density throughout the walls will be substantially less, and equally the insulation will be les efficient, and so likely to cause cold areas within the wall space, dramatically undermining the performance of the house.

Do Insist on a density figure during quotation phase – and make sure it is at or above 60kg/m3