Spiders, ants & crawling insects
Spider control in Salt Lake City, UT
Black widows in the window wells, fast brown spiders on the basement floor every September. Spider control here is about the spots they live in, not just the ones you see.
Most active
- Spring
- Summer
- Fall
- Winter
Quick answer
Spider control in Salt Lake City focuses on window wells, basement corners, garages and eaves. We remove webs and egg sacs, treat the cracks and voids spiders hide in and cut down the insects they feed on. Black widows are the spider of real medical concern in Utah; hobo spiders are mostly a nuisance that wanders indoors from August through October.
At a glance
- Best for
- Webs that return quickly, black widows near doors, spiders in basements
- Most active
- August through October indoors
- Visit length
- About an hour for most homes
- Follow-up
- Often folded into a quarterly plan with a fall visit
Overview
Treating where spiders live, not just where you see them
Spiders don't come in for the food in your kitchen. They follow the insects that gather around porch lights, window wells and damp basements, and they settle in the quiet spots nobody disturbs: the back of the garage, under the deck, the corners of a storage room.
A spider treatment starts with finding those spots. Window wells get cleared of webs and debris, egg sacs come out of eaves and garage corners, and we treat the cracks along the foundation, the gap under the garage door and the voids where spiders shelter. Inside, basements and storage rooms get the most attention.
Because spiders feed on other insects, the long-term fix is cutting down what they eat. That's why a perimeter treatment and fewer bugs at the porch light often do more than chasing individual spiders.
Your options
Choosing the right spider treatment
| Option | Best for | How it works | Trade-off |
|---|---|---|---|
| Web and egg sac removal | Eaves, garages and window wells | Physical removal before treatment | Needs a treatment behind it to last |
| Targeted spider treatment | Basements and black widows near doors | Crack, crevice and void treatment where spiders shelter | Aimed at spiders, not every pest |
| Quarterly plan | Homes that see spiders every year | Seasonal visits with a fall push before spider season | An ongoing cost |
Cost
What spider control costs
Spider work is usually priced like a general treatment.
Published range
A general exterminator visit typically runs about $100 to $260. Source: angi.com, checked September 2026.
How many window wells
Each well needs clearing and treatment, and older homes can have several.
Basement and storage rooms
Cluttered storage takes longer to treat properly.
Black widow activity
Widows near doors, play areas or wood piles get extra attention.
High eaves
Two-story eaves and gables take ladder work to clear.
One visit or a plan
Spiders often return each fall, which is where a plan pays off.
What it covers
The spider problems we handle most
Black widow removal
Widows in window wells, under decks, in wood piles and in garage corners, removed and treated with care.
Hobo and funnel weaver spiders
The fast brown spiders that run across basement floors in late summer and fall.
Window well webs
Wells cleared of webs, egg sacs and debris, then treated so they stay clear longer.
Eave and garage web removal
Webs and egg sacs brushed down from eaves, porch lights, soffits and garage ceilings.
Do it yourself?
What helps keep spiders down
What you can do today
- Switch porch and garage lights to yellow bulbs, which draw fewer insects.
- Clear leaves out of window wells and add covers.
- Keep firewood and storage off the ground and away from the house.
- Wear gloves when you reach into boxes, wood piles or window wells.
What to leave alone
- Reaching bare-handed into dark corners where widows web.
- Using foggers, which rarely reach the voids spiders shelter in.
- Leaving cardboard boxes stacked against basement walls.
- Leaving egg sacs in place after you clear the webs.
How the visit goes
How a spider treatment goes
Find the hot spots
Window wells, basement corners, garage walls, eaves and the areas you point out.
Remove webs and egg sacs
Physical removal first, so the treatment reaches the surfaces spiders use.
Treat hiding places
Cracks, voids and the foundation line where spiders shelter and travel.
Cut the food supply
A perimeter treatment to reduce the insects spiders hunt.
Plan for fall
Advice on wells, lighting and storage, and a fall visit if spiders return every year.
Before we arrive
Before your spider treatment
- Clear stored boxes a few inches off basement walls.
- Open window well covers or tell us which ones stick.
- Move vehicles out of the garage if you can.
- Keep kids and pets out of treated rooms until dry.
- Point out where you've seen black widows.
- Leave webs in place so we can see where spiders are active.
- Unlock side gates.
- Tell us about any spider bites in the house.
Warning signs
Signs spiders have settled in
Sign 01
Messy webs low in window wells
Tangled, irregular webs near the ground are typical of black widows.
Sign 02
Egg sacs in garage corners
Round, papery sacs mean the next generation is already on the way.
Sign 03
Fast brown spiders on the basement floor
Large brown spiders running along baseboards in late summer are usually hobo spiders or funnel weavers.
Sign 04
Webs back within days
Webs that return right after cleaning point to a population close by.
Sign 05
Lots of insects around lights
More insects at night means more food for spiders.
Salt Lake conditions
Salt Lake's spider season
Hobo spiders are most often found in Utah homes from August through October, when males wander looking for mates, and the species is now found throughout northern Utah. They look alarming, but the CDC does not list them among spiders venomous to people. Black widows are the major spider of medical concern in Utah. They favor window wells, wood piles, meter boxes and garage corners, which is why we treat those spots first and why gloves matter when you reach into them.
Late summer is the right time to treat, before the fall wanderers move in and while widows are still webbing outside.
Sources: extension.usu.edu
For spiders, ants and other crawling insects we choose from product lines like these, matched to the pest and where it hides.
- Demand CS
- Suspend PolyZone
- Temprid
- Tempo
- Alpine WSG
- Advion
- Maxforce
- Gentrol
Timing
How long spider control takes
- Same visitWebs and egg sacs are removed right away and treatment goes onto hiding spots.
- First weekYou may see spiders moving around as they contact treated surfaces.
- Two to four weeksActivity drops as the insects they feed on drop too.
- Next fallWandering spiders come back with the season, so a fall visit keeps them in check.
Spiders follow the insects
Fewer bugs at the porch light and in the window wells means fewer spiders in the basement.
Call (801) 516-0135Window wells and porch lights are where Salt Lake spider problems start.
FAQ
Spider control questions from Salt Lake homeowners
Still unsure? (801) 516-0135 is answered around the clock.
Utah State University Extension names the black widow as the main spider of medical concern in Utah, and the CDC does not list hobo spiders among spiders venomous to people. Hobo spiders are still unwelcome, and we treat them.
Adult females are shiny black with a red hourglass under the abdomen, and they build messy, tangled webs low to the ground. If you're unsure, leave it and let us look.
Male hobo spiders wander looking for mates from August through October, and they end up in basements and window wells.
It cuts them down sharply. Because spiders follow insects and wander in each fall, most homes do better with a fall visit every year.
Treatment goes into cracks, voids and the foundation line. Keep pets off treated surfaces until they dry, and tell us about any reptiles or birds.
Vacuuming webs is fine and helps. Wear gloves around window wells and wood piles in case of widows.
Yes. Egg sacs are removed from eaves, garages and window wells as part of the treatment.
Related services
More from spiders, ants & crawling insects
From the Pest Library: Hobo spider or black widow? Telling Utah house spiders apart
Talk to us
Seeing more spiders as the nights cool?
Call now to get the window wells, basement and garage treated before the fall wanderers move in.
Homes, rentals and businesses across Salt Lake, Davis, Weber, Box Elder, Morgan, Tooele and Utah counties.
