Things are not what they used to be,
Cavity walls can be used by rats to
move around the building. This photograph
shows gnaw marks and holes made
through the air vent from inside the
cavity wall.

The damage caused by rats chewing
through cables and pipes can be
substantial (and you probably will
not be covered by insurance), A flood was
caused by this washing machine pipe being
chewed.

Things are getting worse, standard baits
no longer work in many parts of Birmingham.
In the left of this photo, a standard block
bait was completely ignored by mice. The
block was in a card box which is supposed
to make it more attractive to mice. To the
right is a plastic bait tray using a self
prepared poison plus a special ingredient
which the mice were found to like.
In the foreground is the proof of the pudding.