There a few things you can do to get rid of house flies, first and foremost you should keep your entry ways closed and check all screens on your windows or doors for holes so they can’t get in in the first place. Next you need to make sure your environment is clean. Flies love filth. The outside of your home should be kept clean as well and you’ll have less of them ready to barge through your entry. Pick up any trash or pet droppings in your yard as these attract flies by the tons. Unfortunately there’s no way to get rid of all of those pesky houseflies but these tips should help lesson there appearance.