As the weather cools down in Pittsburgh, you might start noticing more spiders showing up around your home — in the corners, basements, or even near windows. But before you panic, there’s a simple reason: spiders are following their instincts.

When temperatures drop and outdoor food sources become scarce, spiders migrate indoors to find warmth and steady shelter. Fall is their busy season — and your home is the perfect spot to ride out the cold months ahead.

Why Spiders Move Indoors in Fall

1. Temperature Changes:
As Pittsburgh nights get colder, spiders search for consistent warmth. Homes, garages, and sheds provide stable environments that protect them from freezing temperatures.

2. Food Supply:
Spiders go where the food is — and that often means following other pests like flies, gnats, and ants indoors. If you’ve got insects sneaking in, you’re likely to see spiders not far behind.

3. Breeding Season:
Many spider species in Pennsylvania mate during the fall months. Males wander more often this time of year in search of females, which explains those unexpected sightings across your floors or walls.

Simple Ways to Control Spiders in Your Home

1. Seal Cracks and Gaps:
Inspect around windows, doors, vents, and your home’s foundation. Caulk small openings and replace damaged weather stripping to keep spiders (and other bugs) out.

2. Eliminate Clutter:
Spiders love undisturbed areas like basements, storage boxes, and garages. Keeping these spaces organized makes them less inviting.

3. Keep It Clean:
Vacuum regularly, especially corners and ceilings, to remove webs and egg sacs. Wipe down window sills and dust under furniture to prevent hiding spots.

4. Reduce Outdoor Attraction:
Turn off outdoor lights when not needed — they attract insects, which in turn attract spiders. Trim shrubs and remove wood piles close to the house.

5. Call for Professional Pest Control:
If spiders keep returning or you’re seeing multiple types (like wolf or house spiders), a fall pest inspection can identify entry points and help reduce overall pest activity before winter.

Don’t Let Spiders Overstay Their Welcome

While most Pittsburgh spiders are harmless and even help control other bugs, that doesn’t mean you have to share your space with them. A few simple preventive steps now can save you from unwanted guests all season long.

Call us today for expert pest control solutions in Pittsburgh — and keep your home spider-free this fall and winter.