The best way to keep spiders from coming inside, is to control them outside. Some effective methods to keep spiders controlled outside the home and make sure they do not come inside include:

• The use of herbs like cinnamon, peppermint, citrus, citronella, lavender, and tea tree oil, mixed with water.
• Reduce the use of outdoor lights because these lights attract bugs spiders like to eat.
• Clean and repair porches or decks regularly to keep spiders from making homes in the cracks and crevices.
• Fill in cracks and crevices in door frames and window ledges.
• Clean gutters so the blockages do not create a safe place for insects to get in.
• Place sprigs of eucalyptus around the perimeter of the house to repel spiders.
• Vacuum your house at least once a week
• Clean up food scraps and crumbs that can lure insects, which in turn, can attract spiders and other pests.
• Make a homemade spider repellent from water and table salt and spray the mixture around the outdoor landscape elements. Salt is a natural poison to spiders. Mix 1/8 cup of salt into one gallon of warm water. Place the solution in the spray bottle and spray the solution directly onto spiders, webs, or their nests to kill them.

Listed below are products you can purchase that are specifically designed to kill spiders. However, make sure these items do not risk the health of your beloved pets or children.

• Spider Repellents: These are made for indoor and outdoor use and can be sprayed on plants so when spiders come into contact with the plants, they are killed. A natural repellent, such as chestnut extract will not harm the plants, but the spiders will avoid these areas because they do not like it.
• Web Eliminators: This is product that can be sprayed onto brick, metal, paint, and wood to prevent spiders from attaching their webs to the surfaces.
• Aerosol Sprays: This is an effective way to control spiders in garages and basements where most spiders will spin their webs.

Contact Sprays: Using this spray on existing spiders and webs will cause them to die. These sprays may not be effective though, because many spiders make their webs in hidden or secluded areas.