Eight Legs, Zero Rent: Why Spiders Love Your Home in the Fall
Fall on Vancouver Island brings colourful leaves, cooler temperatures, rainy days, and an increase in spider sightings. Whether you're in Victoria, Duncan, Nanaimo, or another Island community, you've probably noticed more spiders appearing around your home, garage, or outdoor spaces as autumn arrives.
You might spot a large spider running across your living room floor, find webs around your garage door, or discover an eight-legged visitor hiding behind stored boxes. But what attracts spiders to our homes in the fall? What are they eating, and where do they prefer to live?
Understanding spider behaviour can help you make your property less inviting to these unwanted guests.
Why Are Spiders More Noticeable in the Fall?
Late summer and early fall are particularly active times for many spider species on Vancouver Island.
While it's tempting to assume spiders are simply escaping the cold, there's more to the story. For many house spiders, fall is mating season. Male spiders leave their usual hiding spots and travel in search of females. This increased movement makes spiders much more noticeable, especially indoors.
Vancouver Island's damp autumn weather can also make sheltered locations around buildings appealing. Garages, sheds, basements, and crawl spaces offer protection from heavy rain and changing temperatures.
Interestingly, some spiders found indoors have been living there all year. You may simply be noticing them more because they're moving around.
What Do Spiders Eat?
Spiders are natural predators that play an important role in controlling insect populations.
Unlike pests that are attracted to crumbs, pantry food, or garbage, spiders are primarily interested in catching other small creatures.
Common Foods for Vancouver Island Spiders
Depending on their species and size, spiders may feed on:
Flies: Houseflies, fruit flies, and other small flying insects.
Mosquitoes: Common prey for web-building spiders.
Moths: Frequently caught in webs near exterior lights.
Ants: Some hunting spiders capture ants and other crawling insects.
Earwigs: Occasionally eaten by larger spiders.
Small beetles: Another potential food source.
Other spiders: Some species will even prey on fellow spiders.
Spiders use different hunting methods. Orb-weaving spiders construct intricate circular webs to catch flying insects, while house spiders often use funnel-shaped webs to trap prey.
Other species actively hunt instead of waiting in a web.
Why Spider Food Matters Around Your Home
Here's something many homeowners overlook: where there are insects, spiders may follow.
If your garage regularly attracts flies, moths, or other insects, spiders have a reliable food source.
Exterior lighting can also contribute to the problem. Bright lights attract flying insects after dark, creating ideal hunting locations around doorways, windows, and garage entrances. Reducing insect activity around your property is one of the most effective ways to discourage spiders from settling in.
Where Do Spiders Like to Live in the Fall?
Spiders prefer locations where they can find food, shelter, and minimal disturbance.
During Vancouver Island's wet autumn months, certain places around your property become particularly appealing.
1. Garages and Storage Areas
Garages are prime spider territory.
They often contain everything spiders appreciate: dark corners, stored belongings, insects, and plenty of undisturbed hiding places.
You may find spiders:
Behind shelving and cabinets
Inside cardboard boxes
Around garage door tracks and frames
Beneath workbenches
Behind bicycles, tools, and seasonal equipment
Garages can also have small gaps around doors that make access easy.
2. Basements and Crawl Spaces
Dark, quiet basements and crawl spaces provide excellent shelter for house spiders.
These areas often experience little activity, allowing spiders to establish webs without interruption. Giant house spiders and cellar spiders are among the species you may encounter in these spaces.
3. Woodpiles, Sheds, and Outdoor Storage
Stacked firewood, garden supplies, and outdoor equipment provide protected spaces for spiders.
On Vancouver Island, wet leaves and accumulated yard debris can also create hiding spots for insects, which in turn provide food for spiders.
4. Windows, Doorways, and Exterior Lighting
Have you noticed spider webs around your porch lights or garage entrance?
That's no coincidence.
Outdoor lighting attracts insects, making these areas convenient feeding grounds for web-building spiders. Window frames, siding, eaves, and covered entryways also offer sheltered places to build webs.
5. Gardens, Shrubs, and Vegetation
Spiders naturally thrive in gardens, where insects are plentiful.
Shrubs, climbing plants, and vegetation growing against your house can provide shelter and create pathways close to potential entry points.
Although spiders are beneficial outdoors, it's understandable that homeowners would rather keep them out of living spaces.
Common Fall Spiders on Vancouver Island
Several types of spiders are frequently seen around Vancouver Island homes.
Giant House Spiders: These large, fast-moving spiders are often spotted in garages, basements, and houses during fall mating season. Their size can be startling, but they generally avoid people.
Cross Orbweavers: Recognized by their impressive circular webs, these spiders are common around gardens, decks, fences, and exterior lights.
Cellar Spiders: Known for their extremely long, thin legs, cellar spiders favour quiet corners, garages, basements, and storage rooms.
Cobweb Spiders: These spiders construct irregular, tangled webs in sheltered and undisturbed areas.
Most spiders encountered in Vancouver Island homes pose little danger to people. However, frequent sightings and excessive webbing can still become frustrating.
How to Prevent Spiders From Entering Your Home and Garage
You don't have to wait until spiders are appearing throughout your property to take action.
A few practical prevention measures can make your home considerably less attractive to them.
Seal Cracks and Entry Points
Inspect your house and garage for openings around windows, foundations, siding, pipes, and doorframes. Install weather stripping and door sweeps, particularly along garage doors where gaps are common.
Repair damaged window screens and seal accessible cracks to help prevent spiders and other pests from getting inside.
Keep Your Garage Organized
Spiders love clutter because it provides countless hiding places.
Reduce their opportunities by:
Replacing cardboard boxes with sealed plastic storage bins
Keeping stored items off the floor
Regularly sweeping behind shelves and equipment
Removing unnecessary clutter
Vacuuming corners and removing webs
A well-organized garage also makes spider activity easier to spot.
Reduce Insects Around Your Property
Remember, spiders are searching for food.
Addressing fly, ant, moth, and other insect problems can discourage spiders from establishing themselves nearby. Keep garbage containers closed, maintain screens, and clean up anything that attracts insects.
Rethink Your Outdoor Lighting
Consider using warm-coloured outdoor bulbs that attract fewer insects.
Turn off unnecessary exterior lights when possible, or position lighting away from entrances.
Fewer insects gathering near your doors can mean fewer spiders building webs there.
Maintain Your Yard
Keep firewood and yard debris away from your foundation when practical.
Trim shrubs and vegetation that touch your house, and regularly remove webs around exterior doors, windows, and garage openings.
These simple steps help reduce sheltered spaces immediately beside your home.
When Should You Call a Pest Control Professional?
Seeing the occasional spider doesn't necessarily indicate a pest problem.
However, if spiders are appearing frequently, you're finding excessive webbing, or your garage and storage spaces are becoming overrun, professional assistance may be beneficial.
Recurring spider activity can also indicate that other insects are thriving around your property.
A pest control professional can help identify problem areas, assess potential entry points, and recommend appropriate treatment and prevention strategies.
Keep Spiders Out This Fall With Sentry Pest Control
Spiders serve an important purpose outdoors, but that doesn't mean you want them taking over your garage, basement, or home.
At Sentry Pest Control, we understand the seasonal pest challenges that Vancouver Island homeowners face.
Our professional pest control services can help address unwanted spider activity, identify conditions attracting pests, and provide practical recommendations to reduce future problems.
Whether you're dealing with giant house spiders in your garage, webs around your windows, or recurring spider sightings inside your home, Sentry is here to help.
Don't let spiders become unwanted houseguests this fall!
Contact Sentry Pest Control today to learn more about our pest control services and how we can help keep your Vancouver Island home and garage comfortable throughout the season.
Visit www.sentrypestcontrol.ca to get in touch with our team.
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