wrote:
Hi,
A friend of mine is having cavity wall insulation done. She had a
company come in to get an estimate and she was told that as she had an
open fire she would have to pay an extra £60 for the installation of a
core vent. When she questioned this she was told that it was the law.
Could someone tell us if this is the case or if the guy was just trying
to get the most out of her.
Thank you for your help.

=================

If your friend's floor is floorboards (not concrete) and there is an air
brick on an external wall ventilating the under floor space then she could
ask if a floor vent can be fitted instead of having a 4 inch diameter hole
bored through the wall. As far as I am aware the regulations still permit
this.