u/worm_empire

So, my boyfriend and I just moved into this new home. All good until we noticed our first any trail. No biggie, we had liquid bait from our last home. We put it down and the trail was gone. Then we realized that there's trails that appear almost from any crevice on the down stairs. Then we noticed them upstairs too. I found a bunch of them on the outside of our house, climbing from the upstairs to a dead bug on the porch. Is it possible for them to have a nest in the walls? The bait seems to not be doing anything. Do you think it might be at a level that needs professional help? Or could this be solved from just something we can do?

Attached is a photo of a trail from the ants in question.