The answer to 'how did mosquito control get in my house' is that mosquitoes can enter your home through small cracks and openings, such as gaps around windows and doors, or through vents and chimneys. Mosquitoes are attracted to standing water, so any areas in your home with stagnant water, like clogged gutters or pet bowls, can also draw them inside.
To prevent mosquitoes from getting into your home, make sure to seal any cracks or openings, remove standing water sources, and use screens on windows and doors. If you're still having issues with mosquitoes indoors, it's best to call a professional pest control company to identify and address the root cause of the problem.