Seal cracks and gaps in walls, floors, windows, and around pipes
Install door sweeps and weather stripping
Remove clutter, cardboard, and stored debris
Vacuum regularly, especially corners, baseboards, and ceiling edges
Reduce moisture with a dehumidifier and fix leaks
Keep basement lights off when not needed
Store items in sealed plastic bins instead of cardboard boxes
Remove spider webs, egg sacs, and visible spiders with a vacuum or broom
Control insects in the basement to reduce spider food sources
Use sticky traps along walls and in corners
Trim vegetation away from the foundation and exterior entry points
Keep outdoor lights away from basement entrances if possible
Apply residual insecticide labeled for spiders around entry points if needed
Call a pest control professional for severe or recurring infestations