[Mick]

Tell here to get some "Nippon" it comes in small tubes its like a clear syrup all you do is put a few drops on a bit of slate or something and put it down where they are coming in to the flat or if you cant find where that is find a main path they are taking the ants will think its sugar and take it back to the queen it only takes a few days add a few drops each day .
no more ants costs a few pounds and well worth it.
I think Wilkinsons sell it but if you cant find it let me know as i still have a tube of it you can have as i say it only takes a few drops and no more ants