Even though my house is only 16 years old we think that our builder did not insulate the walls and especially the bay windows properly. When it was being built, sheets of polystyrene were placed between the walls but not very carefully.
We were thinking of getting in the beads. Is there a grant for this sort of thing available? How much to get a detached house filled?
My parents got it done in their 3 bed council house in Kerry last year. Beads in walls and insulation put in attic. Think it worked out at about 300 euro or thereabouts. Was originally around 900, but grant brought it well down.