Eliminate breeding sources by removing garbage, rotting food, pet waste, and standing water
Keep food covered and store it in sealed containers
Clean drains, trash cans, and kitchen surfaces regularly
Use fly screens on windows and doors
Set up sticky fly traps or fly paper
Use UV light traps designed for flies
Use a vacuum to remove flies indoors
Use a fly swatter to kill individual flies
Use insecticide labeled for flies, following the product instructions exactly
Contact a licensed pest control professional for severe infestations