Hi all. Have spotted two or three ants, two or three times, in our front room the past couple of weeks and today we came down in the morning to find a little pile of dark kind of grit at the bottom of a corner join in a skirting board, which has a crack in it. Cleaned it up. Went out for the day and returned this evening to find another. Anyone else had this? What did you do? What does it mean? Only two ants have emerged from the gap in skirting board since we got back a couple of hours ago. Are these normal ants or carpenter ants? Eugh! And thanks so much! Nb previously if ants have come in front door or somewhere I’ve put talc down and never see them again but I have never found a little pile of grit like dark sand before - so am worried!