Some spiders like moisture and are found in basements, crawl spaces and other damp parts of buildings. Others like dry, warm areas such as subfloor air vents, upper corners of rooms and attics. They hide in dark areas.
They feed on insects, other spiders and any other prey they are able to subdue.
Spiders commonly enter homes in two primary ways: entering through open, poorly screened windows and doors and through cracks and gaps around door and window frames. Most of the time, spiders come inside the home looking for prey. The other common method of entry is accidentally hitchhiking inside boxes, on outdoor items and numerous other things that are brought inside a home or business.