Things You'll Need
Instructions
Go around the house with a vacuum looking for spiders as well as their webs. Vacuum both up. Consider making this a weekly habit, or part of your house-cleaning routine. Pay special attention to corners, cracks, dark places and unused areas, as some spiders, such as the brown recluse, hide in these areas during the day and only come out at night.
Reduce clutter around the house, which often makes ideal hiding spots for spiders.
Reduce clutter around the outside of the house as well. This includes firewood and similar materials that are often piled against the outside of a house. Similarly, shrubs and trees should be trimmed and well maintained. Spiders like to live in this kind of clutter, and their proximity to the house makes it more likely that they will eventually move inside.
Seal up any cracks in baseboards, between floorboards, around windows or anywhere else that a spider might get in. Use caulking glue or a similar product. You will want to prevent new spiders from getting in, and sealing up access points is one good way to do it.
Use insecticides, particularly around any cracks or crevices where spiders might be hiding. Duct insecticides are a good option, in part because they will last a long time in a dry place. Consider also using insecticides around the outside of the house, to discourage spiders from coming inside.
Lay down glue boards in likely places for spiders to be found, around cracks and crevices. Glue boards will help trap spiders, and can also be a good way to gauge how successful your spider removal campaign has been. If the glue boards do not trap any spiders then it's unlikely there are many spiders in the house.
Install yellow or sodium vapor lights in outside light sockets, which will not attract as many flying insects, which in turn attract spiders.