Frequently Asked Questions

Huron Spider Control Inc.
Are spiders in and around my Ontario home dangerous?
Most spiders found indoors and outdoors in Ontario are not dangerous and rarely bite. When bites do occur, reactions are usually mild and resolve quickly. However, certain species such as black widows can pose a higher risk if disturbed, particularly in outdoor areas like woodpiles, sheds, and garages. The key is accurate identification. If you are seeing large or unfamiliar spiders inside or outside, take it seriously and have them assessed so you clearly understand the actual level of risk.

Why am I suddenly seeing so many spiders in and around my home?
A sudden increase in spiders means your property has become a reliable food source. Spiders follow insects, not people. In Ontario, this commonly happens in late summer and fall when spiders move indoors from outdoor environments. It also occurs when insect activity increases around your exterior walls, lighting, decks, and landscaping, or when indoor areas like basements and storage spaces remain undisturbed.

How are spiders getting into my home from outside?
Spiders move from outdoor harbourage areas into your home through small openings around the exterior. Common entry points include foundation cracks, gaps around windows and doors, vents, soffits, and utility line openings. Homes across Huron and Bruce counties naturally develop these gaps over time due to settling and seasonal changes. Even very small openings are enough for spiders to transition from outside to inside.

Is this a spider infestation or just a few spiders?
Seeing the occasional spider indoors or outdoors is normal. A problem exists when activity becomes frequent and consistent. If you are seeing spiders daily, noticing webs along exterior siding, eaves, decks, or in multiple indoor rooms, or finding egg sacs, the issue has moved beyond normal levels and requires proper control.

How does Huron Spider Control get rid of spiders indoors and outdoors?
Effective spider control starts with identifying where spiders live and how they enter your home. Webs and harbourage areas are removed from exterior structures to eliminate active populations. Targeted treatments are applied around the exterior foundation, soffits, entry points, and problem areas. Insect populations are reduced outside to remove the spiders’ primary food source. A protective barrier is then established to stop spiders from entering. This approach breaks the cycle instead of providing a temporary reduction.

Will spiders come back after treatment?
Spiders return when outdoor populations and entry points are not controlled. One-time treatments reduce activity temporarily but do not stop reinfestation from outside. Long-term control depends on maintaining a strong exterior barrier and reducing insect activity around your home. Seasonal treatments in spring, summer, and fall provide the most reliable results in Ontario.

Is your spider treatment safe for kids and pets?
All treatments used are federally approved for use in Ontario and applied in a controlled, targeted manner. You’ll receive clear instructions before and after treatment, including when it is safe to re-enter treated areas or allow pets outside. In most cases, surfaces are safe once they are dry.

How much does spider control cost in Ontario?
The cost depends on your home size, the level of spider activity indoors and outdoors, and the type of service required.
One-time treatments cost less upfront but do not provide lasting results. Seasonal treatments offer better long-term value by preventing recurring outdoor-to-indoor problems. The most accurate pricing comes from evaluating your specific property.

Can I get rid of spiders myself indoors and outdoors?
DIY methods can reduce visible spiders but do not solve the root problem. Most store-bought products only affect spiders you can see and do not target outdoor harbourage areas, egg sacs, or entry points. Without addressing these factors professionally, spiders will continue moving from outside to inside.

How do I keep spiders from coming back?
Long-term spider control depends on reducing both access and attraction across your entire property, inside and out.
Seal cracks, gaps, and entry points to stop spiders from moving indoors. Reduce exterior lighting or switch to less attractive bulbs to limit insect activity around your home. Keep outdoor areas such as siding, decks, eaves, and window frames free of webs and debris to remove active harbourage zones. Maintain clean, organized indoor spaces to eliminate hiding spots. Remove webs regularly both inside and outside to disrupt spider activity before it builds. A professionally applied exterior barrier provides consistent, ongoing protection by stopping spiders before they enter.

When is spider season in Ontario?
Spider activity starts increasing in the spring as temperatures rise and insects become more active around your home’s exterior. Populations build through the summer, mostly outdoors, where spiders feed and grow. The biggest spike happens in late summer and fall. This is when spiders mature, reproduce, and begin moving indoors in search of warmth and shelter as temperatures drop. That’s when you’ll notice more webs outside and more spiders inside. Activity slows in winter, but spiders that made it indoors can remain active in basements, garages, and storage areas. The most effective control comes from treating in spring to reduce buildup and again in late summer or early fall to stop spiders before they move inside.

How quickly can you get rid of spiders?
You will typically see a noticeable reduction in spider activity shortly after your first treatment, especially in outdoor areas where populations are highest. Long-term results depend on consistent prevention, as maintaining a strong exterior barrier keeps spider activity under control and prevents populations from rebuilding.

How do I get started with spider control?
If you are seeing spiders outside regularly, the problem will continue without intervention. Acting early reduces severity and cost. Call us now (519) 903-9889 or complete our “Request a Quote” form on our homepage at huronspidercontrol.com to receive a clear plan, straightforward pricing, and reliable results tailored to your property.

© 2026 Huron Spider Control Inc.
 TermsCareers ⋅ ArticlesFAQ