Why your garage is a magnet for spiders-If you’re noticing webs in corners, spiders near the garage door, or the occasional “surprise” spider on stored items, you’re not alone. Garages are one of the most common places homeowners see spider activity—and it’s not because spiders prefer your car. It’s because garages provide the perfect combination of entry access, shelter, and food.
In this guide, we’ll break down why spiders love garages, what attracts them, which areas to check first, and the most effective prevention steps to keep spider problems under control year-round.
Quick Answer: Why are there so many spiders in my garage?
Your garage attracts spiders because it usually has:
- Easy entry points (gaps under doors, cracks, vents)
- Lots of hiding places (boxes, clutter, storage corners)
- A steady food supply (flies, moths, mosquitoes, and other insects)
- Low disturbance (quiet, dark areas spiders can build webs)
- Humidity and temperature stability compared to outdoors
Spiders go where their prey goes—so if your garage is attracting insects, spiders will follow.
1) Garages have more entry points than most rooms
Even well-built garages tend to be “leakier” than the rest of the home. Common spider entry routes include:
- Gaps beneath the garage door and side seals
- Cracks where the slab meets the wall
- Openings around utility lines, pipes, and conduits
- Torn window screens or poorly sealed windows
- Vents and gaps near eaves or soffits (attached garages)
- Door thresholds between the garage and the house
2) Garages are packed with spider-friendly hiding spots
Spiders thrive in undisturbed, protected areas. Garages often have:
- Cardboard boxes and paper storage (great harborage)
- Stacked items with “tunnels” and voids between them
- Dark corners behind cabinets, shelves, or water heaters
- Items stored directly on the floor (easy for pests to access)
The more clutter and storage you have, the more likely spiders can establish a “base” and stay hidden until you notice webs or egg sacs.
Tip: Plastic bins with tight lids are far less inviting than cardboard.
3) Lights attract insects—then spiders move in
Many garages have bright bulbs near doors or within the garage itself. Lights attract flying insects at night, especially if:
- Exterior lights are left on consistently
- Lights are near gaps, windows, or partially open doors
- The garage door is opened frequently after dark
That bug activity becomes a dependable food source, which encourages spiders to settle in and build webs near:
- Light fixtures
- Upper corners of garage door frames
- Around windows and ceiling edges
Bottom line: Fewer bugs = fewer spiders.
4) Garages provide a “weather buffer” spiders love
Spiders don’t want to battle wind, heavy rain, or extreme conditions if they don’t have to. Garages offer:
- Protection from the elements
- More stable temperatures than outside
- Humidity pockets (especially near leaks, drains, or stored wet items)
This makes garages an ideal transitional zone between outdoor habitats and your home interior.
5) You might be dealing with “garage regulars”
Most spiders you see in garages are not actively “infesting” the way ants or roaches do—they’re setting up shop where conditions are favorable. You’ll often see:
- Web-builders staying in the same corner for weeks
- Spiders moving in shortly after you clean (because the insect supply remains)
- Seasonal spikes when insects surge or when spiders seek shelter
If you remove the web but not the conditions, the spiders (or new ones) typically return.
Where to look: the top spider hot spots in a garage
If you want fast results, inspect and clean these areas first:
- Upper corners (especially near the garage door tracks)
- Behind and under shelves/cabinets
- Around windows, vents, and utility penetrations
- Near exterior doors and thresholds
- Along baseboards and the slab-to-wall seam
- Under stored items—especially cardboard and tarps
How to get rid of spiders in the garage (prevention that actually works)
Here are the most effective steps, in order:
1) Reduce the insect food supply
- Replace white bulbs with warm/yellow “bug” bulbs outdoors
- Keep doors closed as much as possible at night
- Address other pests that attract spiders (flies, moths, crickets)
2) Seal entry points (spider exclusion)
- Install a snug garage door bottom seal and side weatherstripping
- Seal cracks along the foundation with appropriate exterior sealant
- Caulk around pipes, lines, and gaps
- Repair screens and ensure windows close tightly
3) Declutter and improve storage
- Switch to plastic storage bins with lids
- Keep items off the floor (use racks or shelving)
- Avoid stacking materials directly against garage walls
4) Remove webs and egg sacs consistently
- Knock down webs with a broom or vacuum
- Check corners weekly for a few weeks to break the cycle
- Dispose of vacuum contents outdoors immediately
5) Consider professional spider control for recurring issues
If you’re seeing frequent webs, multiple spider sightings weekly, or activity spreading to the house, professional service can help by:
- Treating entry zones and exterior perimeter
- Targeting insect activity that feeds spiders
- Identifying hidden harborages and exclusion needs
- Providing routine prevention so activity stays low long-term
Keep spiders out—without turning your garage into a battleground
Spiders aren’t showing up randomly—your garage is offering them shelter and steady food. The most reliable solution is a layered approach: seal entry points, reduce insects, clean webs, and keep storage organized.
If spider activity keeps coming back, All Solutions Pest Control can help and put a prevention plan in place to keep your garage (and your home) far less inviting to spiders.
