Are the spider spray products safe for children and pets?

Yes. Once the spray dries (usually 30-60 minutes), it bonds to the surface and is safe. Keep pets away until the technician confirms it is dry.

Why do I have spiders on my 20th-floor condo balcony?

Baby spiders travel by 'ballooning' on the wind. They land on high balconies, and if your balcony light attracts flying insects, they stay to build webs.

Spider Control in Mississauga

If you live in Mississauga especially south of the QEW or near the Credit River you don’t need us to tell you how bad the spiders get in the summer.

Lake Ontario and the Credit River system produce billions of midges (often called “lake flies” or “blind mosquitoes”) from May through September. Spiders follow this massive food source. They build massive, sticky webs over the exterior of waterfront and river-adjacent homes, completely covering windows, doorways, security cameras, and patio furniture.

Inside, older basements in Port Credit and Streetsville provide the damp, dark environments that Cellar Spiders love, while newer homes in Churchill Meadows deal with House Spiders building cobwebs in the upper corners of main-floor living spaces.

Pestisect provides comprehensive spider control for Mississauga properties. We don’t just spray; we clear the webbing first, then apply professional residual treatments to keep your home clean and spider-free.

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Common spiders

The Common Spiders in Toronto

The Dock Spider (Fishing Spider)

Very large, fast spiders found near the lake and river. They do not spin webs; they hunt near the water’s edge. They are intimidating but harmless.

The Cellar Spider

Found indoors. Very long, thin legs. They build messy, tangled webs in basements, crawlspaces, and garages.

The House Spider

The spider responsible for the classic “cobweb.” They build webs in the upper corners of rooms and behind furniture.

The Yellow Sac Spider

A pale yellow indoor/outdoor hunting spider. They build small silk “sacs” in the corner of the ceiling to sleep in during the day. Their bite is painful (similar to a bee sting) but not medically significant.

Note: There are no dangerously venomous spiders native to Mississauga. Black Widows and Brown Recluses do not have established populations here

Spiders

Why Mississauga Has Such High Spider Pressure

The Lake Effect

Lake Ontario is a breeding ground for midges. During massive midge hatches in early summer, the exterior walls of homes in Port Credit and Lakeview are swarmed. Spiders build webs directly on the siding and windows to catch them.

The Credit River Corridor

Slow-moving water breeds flying insects. Homes backing onto the Credit River, Etobicoke Creek, or Cooksville Creek face constant exterior spider pressure from spring through fall.

High Humidity

Waterfront proximity keeps the ambient humidity high in southern Mississauga. Spiders thrive in humid environments.

Spider control

Our Spider Control Process

We tackle spider problems using a two-pronged approach: physical removal and residual prevention.

Exterior Perimeter Treatment (Spring & Summer)

Exterior spiders are the primary complaint in Mississauga. First, we use an extending web-sweeper brush to physically remove all webs, egg sacs, and live spiders from your eaves, window frames, door frames, and porch ceilings.

Next, we apply a professional-grade residual spray around the perimeter of your home. This includes the foundation line, window frames, and under the eaves. This product is micro-encapsulated — when a new spider attempts to attach a web to the treated surface, it absorbs the product and dies. The treatment lasts for 60 to 90 days.

Interior Treatment (Year-Round)

For interior infestations, we focus on the basement and main floor perimeters. We sweep down existing webs and apply a targeted crack-and-crevice spray along the baseboards, in corners, and behind heavy storage racks.

We also use discrete glueboard monitors in corners to catch hunting spiders (like Yellow Sac spiders) that don't stay in webs.

spider pattern

Mississauga Neighbourhood Spider Patterns

Port Credit, Lakeview, Clarkson: Extreme exterior spider pressure due to Lake Ontario midges. The exterior of the home can be covered in webs in a matter of days during a midge hatch. Regular exterior perimeter sprays are highly recommended.

Streetsville, Erindale: High exterior pressure from the Credit River corridor. Large Dock Spiders are commonly seen in yards backing onto the river.

Erin Mills, Churchill Meadows: Standard suburban spider pressure. The primary issues here are usually House Spiders building cobwebs indoors and orb-weavers building webs across walkways in the garden.

Preventative Tips for Mississauga Homeowners

Switch to Yellow “Bug Lights”: Bright white exterior lights attract midges and flies off the lake. Switch your porch and soffit lights to yellow bug bulbs. Yellow light is less visible to insects, meaning fewer bugs, which means fewer spiders.

Run a Dehumidifier: Keep your basement humidity below 50%. Cellar spiders and the smaller insects they eat thrive in damp environments.

Seal Cracks: Ensure the weatherstripping around your doors and windows is tight to prevent spiders from migrating indoors when the weather cools in October.

Frequently Asked Questions

Are the products you use safe for my children and pets?

Yes. Once the residual spray dries on the surface (usually within 30 to 60 minutes), it bonds tightly and is completely safe for children and pets to be around. We ask that you keep pets out of the treated area until the technician confirms it is dry.

Will one spray keep spiders away all year in Mississauga?

No. Spiders are a natural part of the outdoor environment. An exterior perimeter spray provides excellent control for 2 to 3 months. For homes south of the QEW or near the river, we strongly recommend two exterior treatments per season (one in May, one in late July) to keep the exterior clean all summer.

I live in a condo near Square One. Why do I have spiders on the 20th floor?

Spiders migrate using a technique called “ballooning.” Baby spiders release a strand of silk that catches the wind and carries them high into the air, often landing on condo balconies. If your balcony lights attract flies, the spider will stay and build a web.

Do I have to leave the house during the treatment?

For exterior treatments, you do not need to leave the house, but we ask that you keep windows closed and pets indoors. For interior treatments, you and your pets will need to vacate the premises during the application and for 2–4 hours afterward to allow the products to dry completely.

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