Revisions log for Answer #88

Remove the baseboard and see exactly where they come out.

Then go to a hardware store and buy ant powder. Take some powder, dissolve it in water and pour some of it directly into the hole where the ants are coming out. A few drops are enough. I do the same thing outside between the stones. After that you won't see any more ants. After that you can cover the hole with a small amount of Band-Aid and that's it.

And I don't immediately understand why people assume there is a construction defect here. Eventually you will find a lot more insects in or around your house. That's nature's way. It tries to give back what people have deprived it of.

We also find spiders in the house every year, especially when fall approaches. We don't care. We leave them alone, and in return they leave us alone.