Spider control
Spider Control in Edmonton
Webs in every basement corner, spiders on the deck and in window frames? We reduce spider numbers inside and around your home by removing webs, treating where they hide and cutting off the insects they feed on.
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Why are there so many spiders in my Edmonton home?
Spiders move into homes where there are insects to eat and quiet places to hide. In Edmonton, sightings climb in late summer and fall, when males wander to find mates and cooler nights push spiders toward basements, garages and window wells.
The spiders Edmonton homeowners see most are house spiders and cellar spiders in basement corners, wolf spiders running across floors near patio doors, and orb weavers spinning big webs on decks, eaves and outdoor lights. Homes next to ravines, the river valley and green belts often see more, for example in Riverbend, Terwillegar and Laurier Heights or near Mill Creek Ravine. So do acreages.
The good news: most spiders here are harmless and actually help by eating other insects. Spider control is about keeping numbers down to a level you're comfortable with, especially in living spaces.
Common spiders in Edmonton homes
The spiders Edmonton homeowners find most are house spiders, cellar spiders, wolf spiders, orb weavers and jumping spiders. Nearly all of them are harmless, and each prefers different parts of the home.
| Spider | Where you'll find it | Notes |
|---|---|---|
| House spiders | Basement corners, under furniture, window frames | Build tangled cobwebs; the most common indoor spider |
| Cellar spiders | Basements, crawlspaces, laundry rooms | Very long thin legs; loose messy webs in ceiling corners |
| Wolf spiders | Floors near patio doors, garages, window wells | Large, fast hunters without webs; more common in fall |
| Orb weavers | Decks, eaves, outdoor lights, gardens | Large wheel-shaped webs; peak in late summer |
| Jumping spiders | Sunny windowsills, siding, fences | Small and compact; jump rather than build webs |
Spiders in garages, decks and window wells
Most of the spiders that end up inside start outside. Window wells collect leaves and insects and act as a funnel into basements. Garages with gaps under the door give wolf spiders an easy route in. Decks with lights left on at night attract the moths and flies orb weavers feed on. Treating these outdoor hot spots usually reduces indoor sightings more than treating inside alone.
How we control spiders
Effective spider control combines removing webs and egg sacs, treating the cracks and corners where spiders hide, reducing the insects they eat, and sealing gaps around windows and doors.
- InspectionWe look at basement corners, window wells, garages, eaves, deck undersides and outdoor lighting to see where spiders and their insect food are concentrated.
- Web and egg sac removalWe clear webs and egg sacs from eaves, windows and accessible corners to reset the population.
- Targeted treatmentWe treat harbourage areas such as window frames, foundation cracks, door thresholds and garage edges using products registered with Health Canada's PMRA, applied according to the label.
- Prevention adviceWe'll show you how to cut insect activity around the house, from outdoor lighting to vegetation against the walls, and where to add weather-stripping or caulk.
How much does spider control cost in Edmonton?
Typical market prices for a one-time spider treatment on an Edmonton home range from about $150 to $350. Seasonal programs that also cover ants and wasps are often better value if you see spiders every summer.
Wasps are often nesting on the same eaves. If so, see our wasp nest removal service, and ask about combining visits. For typical prices see Edmonton pest control pricing, or call (780) 262-3335 for an exact quote.
Do lots of spiders mean I have another pest problem?
Often, yes. Spiders go where their food is, so a basement or garage full of spiders usually means there are plenty of insects such as flies, ants, silverfish or moths to eat.
If you clear the webs and they're back within days, look at what's feeding them. Window wells full of leaves, damp basement corners with silverfish, ants coming in each spring, and outdoor lights that draw clouds of moths all feed a large spider population. Treating those underlying insects, and sealing the gaps they use, is often what finally brings spider numbers down. During an inspection we look at the whole picture, not just the webs.
How to keep spiders out
Spiders are kept out mostly by removing what attracts them: insects, clutter and easy entry points. These steps help most.
- Switch outdoor lights to warm or yellow bulbs, or put them on motion sensors, to attract fewer insects
- Keep storage boxes off basement and garage floors, and use sealed plastic bins instead of cardboard
- Vacuum webs and egg sacs regularly in corners, window frames and behind furniture
- Trim plants and grass away from the foundation and window wells
- Repair window screens and weather-stripping, and caulk gaps around frames
- Deal with other insects too. Fewer ants means fewer spiders.
We provide spider control across Edmonton and nearby communities such as St. Albert and Sherwood Park.
Where we offer spider control
We cover all of Edmonton and these nearby communities: spider control in St. Albert · spider control in Sherwood Park · spider control in Spruce Grove · spider control in Stony Plain · spider control in Leduc · spider control in Beaumont · spider control in Fort Saskatchewan.
Want to read up first? See our guide: House centipedes, carpet beetles and other house bugs.
Written and reviewed by the Alberta Pest Services team in Edmonton · Last updated October 2026
Frequently asked questions
Are spiders in Edmonton dangerous?
Most spiders found in Edmonton homes, such as house spiders, cellar spiders, wolf spiders and orb weavers, are harmless to people and rarely bite. Venomous species of concern are uncommon in the Edmonton area. If someone has a severe reaction to any bite, seek medical attention.
Why are there so many spiders in my house in the fall?
In late summer and fall, male spiders wander looking for mates, and many spiders move toward sheltered spots as Edmonton nights cool down. Basements, garages and window wells with plenty of insects become prime territory, so spider sightings indoors often jump in August and September.
How much does spider control cost in Edmonton?
Typical market prices for a one-time spider treatment on an Edmonton house range from about $150 to $350, depending on the size of the home and whether the exterior, garage and deck are included. Seasonal programs often bundle spiders with ants and wasps. Call (780) 262-3335 for an exact quote.
What attracts spiders to my house?
Spiders follow food. Outdoor lights that attract insects, clutter in basements and garages, gaps around windows and doors, and vegetation touching the house all bring in more spiders. Reducing insects and hiding spots is the most effective long-term spider control.
Will removing webs get rid of spiders?
Removing webs and egg sacs helps, especially in corners, window frames and under decks, but spiders rebuild quickly. Lasting control combines web and egg sac removal, targeted treatment of harbourage areas and sealing the gaps spiders and their insect prey use to get inside.
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