Remove overripe fruit, food scraps, and dirty dishes immediately
Take out trash and recycling daily
Clean drains with boiling water, baking soda and vinegar, or a drain cleaner
Empty and scrub sink, trash can, and compost bins
Let soil dry out between waterings for houseplants
Remove standing water from trays, sinks, and pet bowls
Use sticky traps near windows, plants, and drains
Set out apple cider vinegar traps with a drop of dish soap
Vacuum up visible gnats
Wipe counters, floors, and spills thoroughly
Store fruit and vegetables in the refrigerator
Replace or clean garbage disposal and drain covers
Check for damp towels, mops, and rags and dry them
Inspect houseplants for fungus gnats and treat the soil
Use a fan to keep gnats from settling
Seal cracks around windows and doors
Keep lights off near open windows at night
Repeat cleaning and trapping daily until they are gone