New build projects nowadays whether timber framed or masonry built, all have to have certain insulation fitted where necessary to comply with the current building regulations.

Renovation work or private work is different, but if the work being carried out takes the renovation back to the shell of the building, floors up or ceilings down, it is always good practise to fit insulation where it should be and or can be fitted. This will help keep the building warm in the colder months and cooler in the warmer months. It will also help to keep running costs lower.