Hobo spiders are common in basements, crawl spaces, and sheds throughout the Pacific Northwest. While bites are rare, they can cause irritation and health concerns. Protect your home with Classic Pest Control & Insulation, your local experts in safe spider identification and removal.

Hobo spiders, also known as aggressive house spiders, are a common home invader throughout Whatcom, Island, Skagit, and Snohomish Counties. Of the three local species, the largest can reach 1 to 2 inches or more, with brown bodies, grayish markings, and fast, hairy movements that can be alarming to homeowners. Only one species, Tegenaria agrestis, is prone to biting, and while its bite can resemble that of a Brown Recluse, it is less potent. In many cases across Western Washington, bites attributed to Brown Recluse spiders are actually caused by hobo spiders, making identification and professional control important for local residents.

While these house spiders do spin webs, they are usually noticed near the ground floor because they are not the best climbers. It’s very rare that you’ll see one on the ceiling or high up on the wall. They can be found anywhere debris is, often being under boxes or stored items in homes as well as any other type of debris, indoors or outdoors. Almost any location that is dry is a possibility.

In the fall across Western Washington, male hobo spiders leave their webs in search of a mate, often wandering into homes in Whatcom, Island, Skagit, and Snohomish Counties. Homeowners may suddenly notice multiple spiders indoors, which can be unsettling and a sign that professional inspection and control are needed. Classic Pest Control & Insulation offers expert removal and prevention to keep your home safe and spider-free.

If left untreated in homes across Whatcom, Island, Skagit, and Snohomish Counties, hobo spider populations can grow unchecked, increasing the chance that people or pets may be bitten. While structural damage is minimal, bites can lead to medical expenses and discomfort, making early professional control by Classic Pest Control & Insulation essential to keep your home safe.

Homeowners in Western Washington can reduce spider activity by removing debris, firewood, and other stored materials from around their property, eliminating potential hiding spots. Keeping gutters, eaves, and vents clean and well-maintained also helps prevent spiders from entering your home. Scheduling professional exterior spider treatments each spring and fall can significantly lower spider populations, providing year-round protection. For expert guidance and reliable spider control throughout Whatcom, Island, Skagit, and Snohomish Counties, trust Classic Pest Control & Insulation.