Protect Vinyl Siding, Trim & Boat Hulls
Noticed tiny, stubborn black or dark-brown specks clustered along your white vinyl siding, window trim, boat hulls, or porch ceilings? Learn what causes spider droppings, how to clean them safely, and why exterior barrier spraying is the only permanent solution.
Those small, tar-like dark dots clustered beneath roof peaks, outdoor lights, and window frames are spider droppings (feces and uric acid waste). Because spiders feed on liquefied insect prey, their waste contains thick pigments and digestive enzymes that bond aggressively to vinyl siding, painted wood, composite decking, and boat gelcoats.
Spider droppings smear when scrubbed with warm water and soap and cluster directly below webs and outdoor light fixtures.
Use warm water, mild dish soap, or oxygen bleach solutions. Avoid harsh abrasive scrubbers that scratch vinyl UV coatings.
Scrubbing clean siding is temporary—if active spiders remain on your eaves, new droppings will appear within 48 hours.
Preventing spider feces requires eliminating the spiders roosting above your clean siding. Spider Squad's professional barrier program stops the cycle:
Premium Protection
Choose the protection barrier your property needs. Simple, professional, and guaranteed.
Our flagship exterior structural barrier targets the full perimeter of your home — foundations, soffits, window frames, eaves, and all entry points. Repels and eliminates spiders, ants, and crawling insects before they enter.
A comprehensive yard-level barrier applied to shaded vegetation, ornamental shrubs, deck skirting, and property borders. Reduces adult mosquito and tick populations around your outdoor living space.
SpiderShield™ perimeter barrier
SpiderShield™ creates an invisible exterior barrier that prevents more than just spiders — blocking ants, earwigs, crickets, and other seasonal crawlers from entering your home.
Wherever You Need Us
From the shores of Lake Erie to cottage-country docks — if bugs are a problem, we’re already on the way.
Genuinely Local Exterminators
Spider Squad is a family business — not a franchise, not a call centre. Our team lives in the communities we serve, which means faster scheduling, real accountability, and treatments designed for the pest pressures specific to this part of Ontario.
Don’t Wait
Same-week service available in most communities. Get a free assessment — no obligation.
Don’t Let Spiders Take Over
Tell us about your property and we’ll respond within hours to book your service. No obligation, no pressure.
