Understanding Why Spiders Enter Your Home
Spiders do not enter homes for the same reasons most people assume. Unlike ants seeking food or cockroaches attracted to kitchen grease, spiders follow their prey. They venture indoors because insects are already present inside your home, and the warm, undisturbed corners of closets, garages, basements, and attics represent ideal conditions for building webs and hunting. A significant spider infestation is therefore almost always a symptom of an underlying insect problem. Addressing both simultaneously is the only approach that produces lasting results.
Spiders also enter structures seeking shelter during seasonal temperature changes. Many species migrate indoors as outdoor temperatures drop in the fall. Once inside a warm structure, they find the environment suitable for overwintering, feeding on any insects they encounter, and reproducing through the winter months. By spring, a handful of overwintering females can have established dozens of egg sacs, each containing dozens to hundreds of eggs, resulting in a rapid population explosion that surprises homeowners who thought they had managed the problem.
Identifying Medically Significant Spider Species
While the vast majority of spider species found in homes are harmless, two species present genuine medical concerns and warrant immediate professional attention when identified.
- Black Widow (Latrodectus species): Identified by the red hourglass marking on the female's abdomen. Builds messy, irregular webs in low, undisturbed areas including under furniture, in garages and sheds, behind outdoor furniture, and around firewood piles. Bites cause systemic symptoms including severe muscle cramping, sweating, and in vulnerable individuals, serious medical complications requiring hospital treatment.
- Brown Recluse (Loxosceles reclusa): A tan to brown spider with a violin-shaped marking on the back. Lives in dry, undisturbed areas including cardboard boxes in storage, folded clothing, shoes, and under rarely moved furniture. Bites cause necrotic skin lesions that can be slow to heal and may require medical intervention.
- Hobo Spider: Often misidentified as the brown recluse, the hobo spider builds funnel-shaped webs near the ground in dark corners and is found primarily in the western United States. Its bite is moderately concerning and professional identification is important when this species is suspected.
Our Spider Control Process
Species Identification and Risk Assessment
Our technician examines web patterns, captured specimens, and evidence throughout your property to identify the species present, assess the size of the population, and determine whether medically significant species are involved requiring priority attention.
Prey Insect Population Reduction
Since spiders follow their food source, we address the underlying insect population that is sustaining the spiders inside your home. This includes treating entry points, applying perimeter barriers, and treating harborage areas where spider prey species are most active.
Direct Treatment and Web Removal
We apply residual insecticide treatments to corners, ceiling lines, window frames, storage areas, garages, and anywhere spider webs and egg sacs are present. Web removal is performed as part of treatment, as leaving webs in place allows spiders to return and rebuild with reduced chemical contact.
Exclusion and Environmental Modification
We identify and seal entry points spiders use to access your home, address exterior lighting that attracts night-flying insects that attract spiders, recommend storage organization in garages and basements, and advise on vegetation management near the structure that provides spider harborage adjacent to the building.
Frequently Asked Questions
We understand that choosing a pest control service involves important decisions. Below are thorough answers to the questions our clients ask most frequently about spider control.