I've had mine done, twice.
The first time My folks had just move in and so being pensioners they had the offer of loft insulation. os we had it installed and the chaps who did it said it was their last job of the week and asked if we wanted the remaining rolls of insulation from their van. So we put some away in the basement for later.
A few years later we has a letter asking about anyone on benefits or pension and offering insulation again. So we said yes and had a second layer put in. The chaps then said we were their last job of the week and would we like the remaining rolls form their van!

OK, so now we have an awful lot of insulation rolls in the basement for use later.
The Land lord next door then insulated his house and gave use the left over insulation batts.


We have a lot of spare insulation, in rolls and batts, for use later!
I should start insulating under the floors as I have already used a load internally insulating the walls.
