Spider Control & Extermination Services

Q: Why do I get so many spiders on my front porch?

Porch lights attract flying insects at night. Spiders build their webs near the light source because it guarantees them abundant food. Changing to yellow LED bulbs can reduce this attraction.

Q: Are spiders dangerous to my pets?

The common spiders found in Ontario are not medically dangerous to cats, dogs, or humans. Bites usually result only in mild, temporary redness.

Q: Can you spray my dock to stop the giant spiders?

Yes. We use specialized, aquatic-safe botanical barrier treatments around boathouses, docks, and decks to repel the large spiders without harming the local fish and lake ecosystem.

While spiders are generally beneficial to the environment by controlling other insect populations, no one wants them establishing massive cobweb networks in their basement, trailing from their porch lights, or surprising them in the bathroom sink.

Pestisect offers thorough spider control treatments for residential homes, basements, boathouses, and commercial properties across the GTA.

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Common spider

Common Nuisance Spiders in Ontario

Thankfully, Ontario is not home to established populations of lethal spiders (like the Brown Recluse or Black Widow). However, several common spiders become massive nuisances, especially in the late summer and fall when they seek shelter indoors.

House Spiders

Responsible for the classic nuisance cobwebs found in the upper corners of your rooms and basements.

Cellar Spiders (Daddy Longlegs)

Pale grey, extremely long-legged spiders commonly found vibrating in loose, messy webs in dark, damp basements and crawlspaces.

Wolf Spiders

Large, hairy, brown hunters. Unlike web-builders, wolf spiders hunt on foot. They are fast, often seen running across floors at night, and while intimidating, their bite is similar to a mild bee sting.

Dock Spiders

The largest spiders in Canada. Often terrifying for cottage owners and marina operators in areas branching off Lake Ontario or northern GTA cottage country. They build massive webs near water margins and docks.

What is a Hunting Spider? A hunting spider is a species, like the Wolf Spider, that does not spin webs to catch its prey. Instead, it actively roams across the ground to hunt down insects using its excellent eyesight and speed.

Industry Fast Facts:

A single female spider can produce an egg sac containing up to 250 spiderlings
Spiders only build webs in areas where there is an active airflow carrying flying insects
Spiders are arachnids, meaning they have 8 legs, 2 body segments, and lack the antennae that typical insects possess.

Spider Spray

The Problem with Consumer Spider Sprays

Spiders are notoriously difficult to kill with basic hardware-store “bug spray” for one biological reason: they keep their bodies off the ground.

While ants and roaches drag their bellies across sprayed surfaces on the floor, absorbing the pesticide, a spider walks high up on the tips of its legs. Their bodies rarely touch the treated surface. Furthermore, because web-building spiders rarely leave their webs, spraying the floor does absolutely nothing to them.

Spider removal Process

The Pestisect Spider Treatment Protocol

We bypass the biological limits of consumer sprays by targeting spiders directly where they live and hunt.

Step 1: Web Sweeping & Web-Out Treatments

Our primary goal is to destroy their infrastructure. We use extension poles to aggressively knock down all cobwebs around your porch, eaves, basement joists, and garages. We often treat these areas with natural botanical deterrents that discourage spiders from reattaching new web anchor pins.

Step 2: Crack & Crevice Dusting

Because hunting spiders hide in tight crevices during the day, we inject insecticidal dust deep into the gaps along baseboards, window tracks, and unfinished basement stone walls.

Step 3: Food Source Elimination (The Secret to Success)

Spiders only live where there is an abundant food source. If your house is full of spiders, it likely means you have a hidden population of other insects (flies, moths, gnats, ants) that they are feeding on. Our comprehensive exterior barrier sprays reduce the overall insect and prey population, inadvertently starving out the spider population.

Service Areas for Spider Control

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Spider Control Toronto

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Spider Control Brampton

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Spider Control Mississauga

Frequently Asked Questions About Spiders

Are spiders dangerous to my pets?

The spiders indigenous to the Great Toronto Area are not considered medically significant to dogs, cats, or humans. While a wolf spider can bite if trapped against the skin, the venom is very weak, usually only resulting in mild swelling and redness.

Why do I get so many spiders on my front porch?

Spiders build webs where food is most abundant. Your bright outdoor porch light or floodlights attract hundreds of nocturnal flying insects (moths, midges, mosquitoes). The spiders simply build their webs directly around the light fixture to guarantee a massive food catch every night. Switching to warm-toned or yellow LED bulbs can reduce insect attraction, which limits spider webs.

Can you spray my dock to stop the giant spiders?

Yes. Dock spiders are incredibly persistent. We use specialized, aquatic-safe botanical barrier treatments around boathouses, docks, and decks to repel the large spiders without harming the local fish and lake ecosystem.

Book Spider Treatment

Don’t let spiders take over your home or business. Contact our expert spider control specialists today for a detailed inspection and a customized treatment plan.