Here we have an example of fire ant colony moving from the yard into the house through a weep hole. Weep holes are gaps in the wall that are designed between the bricks to let moisture out. The ants can detect that moist air exiting the building and they go in. I broke the middle away so you can see the ants marching up into the wall. They build a nest up all the way to wall to preserve the moisture of their colony. They'll even move their egg sacs and all their entire colony back in the wall putting pressure on your kitchens and bathrooms.
Bulwark Exterminating Ant Control and Fire Ant specialists show how fire ants get in the house. Fire ants move from your yard to the base of your house and crawl into your home through weep holes. Bulwark Exterminating gets rid of ants the right way! They are the educated professionals of pest control that will give you the relief that you need from bugs. -Bulwark Exterminagting Houston, Texas Pest Control