"Jim" wrote in message

The house is fully double glazed, so the walls may be the cold spots.
Could
this be caused by condensation? particulary as it directly adjoins the
kitchen. What would be the recommended methods to resolve this? Would a
dehumidifier be useful in these circumstances. Any other suggestions?




Are the wall/s adjoining walls or are they gable end walls?

When you say "come and go" have you noticed any particular instance of them
reappearing? ie they appear when it rains,they appear when your're cooking
or after?
Usually the problem can be narrowed down if you notice the conditions the
damp appears.
For instance a blocked chimney after a downfall some of the rain could be
getting down it and settling in/on the blockage then seep through the
brickwork,if you don't have a cowling on the chimney stack? then fit one,Im
not saying this is the likely cause but no one can give a definate answer to
the problem without actually seeing it when it occurs.