Cottage & Waterfront Pest Control
Giant dock spiders (Dolomedes) taking over your cottage dock or boathouse? Learn how Spider Squad's specialized waterfront barrier sprays eliminate them.
To get rid of giant dock spiders (fishing spiders) on cottage docks and boathouses, sweep down active egg sacs and apply a waterfront-safe micro-encapsulated barrier spray to dock framing, joists, boat slip headers, and boathouse siding, adhering strictly to Ontario lake buffer zone regulations.
Dock spiders (also known as fishing spiders) can grow up to 3 inches in leg span. They thrive in dark, humid environments beneath wooden docks, boat lifts, and boathouse rafters, hunting aquatic insects and small minnows.
Because they carry large egg sacs containing hundreds of spiderlings, mechanical sweeping combined with targeted residual spraying is required to prevent explosive spring hatches.
Treating boathouse ceilings, wall corners, and window tracks where dock spiders retreat during daylight.
Targeting dock underside runners, cleats, and ladder mounting brackets with rain-fast residual spray.
Precision application that protects shoreline structures without contaminating open lake water.
While giant dock spiders look intimidating, their venom is not medically dangerous to humans. However, their bite can feel like a wasp sting if trapped in a lifejacket or boat cover, making regular seasonal treatments essential for peace of mind.
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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.
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Spider Squad is an owner-operated family business — not a national franchise or outsourced call centre. Our certified technicians live in the communities we serve, ensuring rapid dispatch, personal accountability, and treatments engineered for Southern Ontario's pest pressures.
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