Spider Control Experts
Expert Spider Control in the Bay Area
ATCO reduces spider populations and removes webs — professionally.
Common Bay Area Spiders
Cellar Spider
Yellow Sac Spider
VenomousBlack Widow
Wolf Spider
Garden Spider
Black Widows Hide in Plain Sight.
California's black widow and brown widow spiders favor garages, sheds, and low-traffic corners. ATCO's web removal and residual treatment targets harborage areas where they nest.
- Web removal included
- Crack & crevice treatment
- Child and pet-safe formulations
Call us: (415) 742-2826 · Or use the coupon to schedule online.
General Pest Control Service
- Min. $350 required
- 1-Year pest protection plan required
- Termite services excluded
ATCO Pest Control — Bay Area
Diamond Certified
Since 2009
Prepare for Your Appointment
Clear Cobwebs From Corners & Ceilings
Sweep away existing cobwebs so your technician can identify active spider areas versus abandoned webs.
Move Furniture Slightly Away From Walls
Pull furniture a few inches from walls. Spiders hide in gaps behind furniture, and access helps treatment.
Reduce Clutter in Closets & Storage
Organize closets, storage rooms, and garages. Spiders thrive in undisturbed, cluttered spaces.
Clear Debris From Around Foundation
Remove leaf litter, woodpiles, and garden debris from around your foundation. These hide spiders and their prey.
Switch Porch Lights to Yellow Bulbs
White lights attract insects, which attract spiders. Yellow bulbs reduce this cycle significantly.
Note Where You've Seen Spider Activity
List rooms where you've spotted spiders or fresh webs. This helps your technician focus on active zones.
What to Know About Spiders
Tap a card to learn what it means for your home — and what ATCO does about it.
Black widow venom is 15× more potent per gram than rattlesnake venom — though they rarely inject a lethal dose, bites still require urgent medical care.
Schedule ConsultationA single black widow can live 3 years indoors, producing multiple egg sacs each season if left untreated — one becomes hundreds.
Schedule ConsultationAny gap a pencil fits through is wide enough for a spider. Sealing every entry point is step 1 — professional treatment is step 2.
Schedule ConsultationMost spiders are beneficial hunters. ATCO identifies the dangerous species and removes what's unsafe — not your whole ecosystem.
Schedule ConsultationMuscle cramps, sweating, and sharp pain within minutes. If you suspect a bite, go to urgent care immediately — don't wait to see if it gets worse.
Schedule ConsultationOne visit covers treatment, web removal, and entry point ID. We seal and treat so they don't return next season.
Schedule ConsultationDid You Know?
Signs of Spider Activity
Look for webs in corners, window frames, and ceiling joints. Egg sacs (small white or tan silk balls) near webs indicate an active population that will grow quickly.
What Attracts Them
Spiders follow their food source — other insects. Clutter, bright outdoor lights, and gaps around doors and windows attract the bugs that draw spiders inside your home.
When to Worry
Black widows (shiny black with a red hourglass) are venomous and common in the Bay Area. If you spot one, do not attempt removal — call a professional immediately.
Where They Hide
Garages, basements, crawl spaces, and woodpiles are prime spider habitats. They also hide behind stored boxes, in closets, and under furniture that isn't moved often.
Seasonal Behavior
Spiders move indoors in fall seeking warmth and mates. Late summer through early winter is when you'll notice the most spider activity inside your home.
Reducing Spider Habitat
Declutter storage areas, switch exterior lights to yellow bulbs, and trim vegetation away from your foundation. Reducing insects around your home means fewer spiders will follow.
What You Can Do
Remove Webs Regularly
Use a broom or vacuum to clear webs from corners, eaves, and doorways. Regular removal discourages rebuilding.
Switch Outdoor Lights
Replace bright white porch lights with yellow bulbs. Fewer insects attracted means fewer spiders hunting near doors.
Seal Entry Points
Caulk gaps around windows, doors, and foundation cracks. Repair door sweeps and screens to keep spiders out.
Reduce Clutter
Clear storage areas, garages, and basements. Spiders love undisturbed, cluttered spaces for building webs.
Use Natural Repellents
Spiders dislike peppermint, eucalyptus, and citrus oils. Spray diluted around windows and doorframes.
Keep Firewood Away
Store woodpiles and garden debris at least 20 feet from your home. These are prime spider hiding spots.
What to Avoid
Don't Handle Black Widows
Never attempt to catch or remove a black widow yourself. Their venomous bite requires medical attention — call a professional.
Don't Over-Spray Pesticides
Broad-spectrum sprays kill beneficial spiders too, and expose your family and pets to unnecessary chemicals.
Don't Kill Garden Spiders
Garden orb weavers eat mosquitoes, flies, and other pests. They're your allies — leave them be.
Don't Ignore Dark Spaces
Black widows favor undisturbed garages, attics, and crawl spaces. Check these areas regularly.
Our Spider Services
Spider Inspection
Identify species and locate nesting areas.
Web Removal
Professional web clearing from entries and living spaces.
Population Reduction
Targeted treatments to reduce spider populations.
Our Balanced Approach
Common Sense Methods
Gentle on your family and pets.
APM Strategies
Long-term Assessment-Based Pest Management.
Ongoing Protection
Regular maintenance keeps populations in check.
Our Philosophy
We reduce populations and remove webs while preserving spiders' role as natural pest controllers.