We have a lot(!) of ants suddenly crawling out of the baseboard. So they're coming out of the floor from somewhere.
We think: Either: The ants have always been under the floor and are only coming out now because of the heat from the underfloor heating.
Or: The landscaper damaged the wall during excavation, so the ants found an entrance.
or: a crack or hole was made in the exterior wall during construction, but it wasn't until after the garden was re-cultivated that an ant colony appeared in close proximity to the house, so the ants are only now using that access.
What should we do?