"Terence" wrote in message
...
I have a 7 year old small semi-detached house.

Is there an (easy) way of telling if I have cavity wall insulation?

The original builders are no longer in existence, and the two previous
owners are not contactable.

Remove a brick on each external wall ;-). If this doesn't sound inviting,
you could always ask a neighbour (original purchasers if possible) what the
build spec was.

HTH

John