The answer to 'how did fire ant get in my house' is that fire ants can enter homes through small cracks and openings in the foundation, walls, or around utility pipes. They are attracted to food sources and moisture, and may build nests inside walls, under floors, or in other hidden areas of the home. Fire ants are aggressive and can deliver painful stings, so it's important to address any fire ant infestations promptly.
To prevent fire ants from getting into your home, seal any cracks or openings, eliminate sources of food and moisture, and consider using bait traps or other pest control methods around the exterior of your home. If you have a significant fire ant problem inside your home, it's best to contact a professional pest control technician who can safely and effectively eliminate the infestation.