Remove webs, egg sacs, and debris regularly
Keep outdoor lights off when not needed
Switch to yellow or sodium-vapor bulbs
Reduce clutter near walls, doors, and windows
Trim shrubs, bushes, and tree branches away from the house
Keep grass short and landscaping tidy
Move firewood, mulch, and compost away from the home
Seal cracks and gaps around doors, windows, vents, and siding
Install or repair screens on windows and vents
Use a hose to knock spiders and webs down from exterior surfaces
Apply outdoor residual insecticide around entry points if needed
Use diatomaceous earth in dry, protected areas if appropriate
Remove other insects that attract spiders
Fix leaks and reduce moisture around the home
Store outdoor items in sealed containers
Clean under eaves, porches, and decks regularly
Use sticky traps in sheltered outdoor areas if appropriate
Call a pest control professional for heavy infestations