The short version
Most spiders in Orem are harmless. Black widows live here, as in every lower-48 state. Orem is outside the brown recluse range, so most 'recluses' here are look-alikes. Identify first, then treat.
- Most house spiders are harmless.
- Black widows live in every lower-48 state.
- Brown recluses don’t live here.
- Skip foggers; they don’t reach hiding spots.
- Yellow bug lights and door sweeps help a lot.
Anyone in Orem who's spotted a spider and wants to know if it matters.
What to look for
Most are harmless and even helpful. Webs and egg sacs keep the cycle going. Spiders follow their food. More insects means more spiders.
- 1Small flying insects gathering under exterior lights.
- 2Messy, funnel-shaped webs in shrubs and grass.
- 3Round or teardrop egg sacs in eaves and frames.
- 4Spiders wandering across walls at night.
- 5A pale spider in a silk retreat high on a wall.
- 6Webs across doorways or gates each morning.
Why it’s worth acting soon
- Egg sacs hatch hundreds of spiderlings.
- Webs build up in eaves, corners and garages.
- Widows nest under outdoor furniture and grills.
Treatment options and typical costs
Inspection and Species Identification
$75–$200
A pro in Orem starts by walking the exterior, garage, basement and eaves with a flashlight, noting webs and where insects gather. The goal is to name the species before deciding anything.
- Time
- 45–90 minutes
- Best for
- Every job; the species decides how much to do
Monitoring and Follow-Up
$50–$150 per visit
Trap counts give an honest read. If numbers keep falling, the plan is working. If not, a good pro changes approach.
- Time
- 20–45 minutes
- Best for
- Confirming results; recluse or widow properties
Sealing Gaps, Lighting and Prey Reduction
$150–$450
Sealing gaps also cuts their food supply. Indoor spiders eat flies, silverfish and pantry pests. Fixing those problems starves the spiders.
- Time
- 1–4 hours
- Best for
- Long-term reduction; homes near woods, water or fields
Exterior Perimeter Treatment and Void Dusting
$150–$350
Sprays alone do a mediocre job on spiders, which is why Orem pros pair them with dusting. A light dust goes into weep holes, voids and behind fixtures.
- Time
- 45–120 minutes
- Best for
- Heavy exterior activity, widows or recluses confirmed
Prices are typical published ranges. Ask what’s included before you compare quotes.
Crawl spaces and their vents are worth a look with a flashlight, especially if a widow has turned up outside.Which spiders live around Orem.
Despite their reputation, they aren't considered dangerous. Most spiders in Orem homes are house spiders, cellar spiders, jumping spiders and wolf spiders. All are harmless to people. Around Orem, they're western black widows, usually hiding under decks, grills and meter covers. Brown recluses don't live around Orem. Most suspects turn out to be harmless look-alikes. Hobo spiders are common in the Northwest.
Local spiders conditions in Orem.
A provider who works Orem and Utah every day can point out the specific conditions that matter most here, and getting the scope, price, and follow-up terms in writing makes it easier to compare options. Orem sits in a semi-arid continental climate, and that sets the pace for spider activity here: late summer through fall (August-October). Across Orem, the area is mostly urban, so spiders pressure can differ from one block to the next depending on how tight the entry points are and how much food, water, or shelter is close by. An inspection in Orem usually starts outside and works inward, checking the foundation, gaps around doors and windows, and any moisture or clutter near the structure first. Knowing Orem's seasonal timing lets you schedule treatment before the busy stretch rather than after it, which usually means faster service and a more accurate quote.
Leaf piles against the foundation are prime fall shelter for spiders looking for a way inside.When you’ll see more of them.
Clear egg sacs in winter. You'll see the most in late summer and fall. That's when males wander. Winter lows around 22°F in Orem slow spiders outside, but house spiders carry on indoors. Spring brings a new hatch.
Where they hide in houses here.
Clutter gives them endless hiding spots. Plenty of homes in Orem have basements, and basements are spider central. Check window wells, storage areas and the sill plate.
A year of spiders in Orem.
- Spring: new spiderlings hatch. Vacuum webs and egg sacs. - Summer: highs near 92°F in Orem bring more insects, and more spiders. - Fall: males wander indoors. Peak spider season. - Winter: with lows near 22°F in Orem, a good time to clear clutter and seal gaps.
Harmless or worth a closer look?
- Black widow: shiny black, red hourglass underneath. Leave it alone. - Brown recluse: tan, violin mark on its back, plain legs. - Wolf spider: big, hairy and fast. Harmless. - Cellar spider: tiny body, very long legs. Harmless. - Jumping spider: small, fuzzy, hops. Harmless. - Orb weaver: big round web outside. Harmless.
If you think you’ve been bitten.
Use a cool compress. Raise the area if you can. See a doctor for severe pain, cramping or spreading redness. If you can, safely catch the spider for identification. Wash the bite with soap and water.
Fewer spiders, the easy way.
- Lights: yellow bug lights draw fewer insects. - Gaps: add door sweeps and repair screens. - Clutter: store things in sealed plastic bins, not cardboard. - Webs: vacuum webs and egg sacs every few weeks. - Shoes and gloves: shake them out before use. - Beds: keep them a few inches from the wall.
Webs outside: leave some, clear some.
- Garden orb weavers: leave them. They catch flies and mosquitoes. - Doorways and porch lights: brush webs away weekly. - Eaves and window frames: a long-handled brush works well. - Woodpiles: keep them off the ground and away from the house. - Gloves: wear them when moving firewood, pots or patio cushions.
Spider myths.
- Swallowing spiders in your sleep: no evidence it happens. - Daddy longlegs are deadly: no. They’re harmless. - Spiders move in for winter: most house spiders never leave. - Every blister is a recluse bite: most aren’t spider bites.
Spiders and pets.
A widow bite can sicken a dog or cat. your vet. Some sprays are risky for cats. Ask the company which products are cat-safe. Most spiders are no threat to pets.
What a spider visit looks like.
The tech walks the outside first. They knock down webs and egg sacs around eaves and windows. They treat cracks, gaps and hiding spots, not open lawn. Inside, they focus on corners, closets and the garage. Most visits take about an hour.
Sticky traps tell you a lot.
Set sticky traps along baseboards, behind furniture and in the garage. Check them after a week. They show which spiders you have and where they travel.
Outdoor lights and spiders.
Porch lights draw insects, and insects draw spiders. Yellow bulbs attract fewer bugs. Motion-sensor lights help too.
Cellar spiders in the basement.
Long-legged cellar spiders hang in basement corners. They're harmless and even eat other spiders. A dehumidifier and a broom keep them in check.
Spiders in the garage.
Garages collect webs, boxes and insects. Store things in sealed bins off the floor. A door sweep and a sticky trap by the door help.
Questions to ask before you sign.
- Which spiders did you find? - Where will you treat, inside and out? - Is web and egg-sac removal included? - Will you seal gaps or add door sweeps? - What happens if they come back? - When can kids and pets go back in?
What affects the price
- Local labor rates and travel distance.
- Season and how heavy current activity is.
- Inclusion of web and egg-sac removal.
- Home size and number of stories.
- Wooded, wet or open-field surroundings.
- One-time visit versus recurring plan.
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What's your biggest concern about spiders?
When to call for help
if spiders keep coming back after cleaning. High eaves and attics are worth leaving to a pro. Call if a black widow is near where kids play.
What you can do yourself
Skip foggers. They don't reach hiding spots. A pro adds targeted treatment in cracks and voids. Start simple. Switch to yellow bug lights. Add door sweeps and store things in sealed bins.
Spiders in Orem
Across Orem, most of the housing is urban, so the usual entry points, moisture spots, and sheltered areas near the structure are what an inspection checks first. Across Orem, take a minute to note where you have seen activity and when it appears, so the inspection is faster and the quote more accurate. A local provider who knows Orem and Utah can point out the specific conditions that matter most here before you commit to a plan. Orem only gets about 16 inches of rain a year, so spiders gather where insects find water: garages, sprinkler zones and shaded walls. In denser parts of Orem, spiders favor stairwells, garages, basements and window frames. Orem has a semi-arid continental climate, and spiders activity here tends to pick up late summer through fall (August-October).
Local research
Spiders in Orem, UT: what the public record shows
Before you compare quotes, it helps to know which spiders actually live in Utah, when they are busiest around Orem, and what the state figures look like. Everything below links to the agency or university page it came from.
Hobo spider detection in Pacific Northwest
An introduced European species that has since spread across the Intermountain West.
Utah State University ExtensionSpider species recorded in Utah
- Hobo spider (Eratigena agrestis) — European funnel weaver 'detected in the Pacific Northwest in 1936', now 'throughout northern Utah' and 'throughout Washington'. Current extension/health stance: not medically si…
When spiders are busiest around Orem
'They are frequently found in Utah homes from August through October' as males seek mates (USU).
'This species is now distributed throughout northern Utah.' 'No significant scientific evidence suggests that hobo spiders have a necrotic (flesh-eating) bite' (USU).
For context, nationally
- Throughout North America, but are most common in the southern and western United States — Black widow distribution. CDC/NIOSH
- In the midwestern and southern United States — Brown recluse distribution. CDC/NIOSH
Sources: Hobo Spider; CDC/NIOSH. Figures are quoted as the source prints them. How we check our sources
Simple ways to keep spiders away
- Put exterior lights on motion sensors.
- Install door sweeps on every exterior door.
- Close windows at night or use tight screens.
- Stack firewood well away from the house.
- Control flies, gnats and other indoor insects.
- Shake out shoes and clothing left on floors.
Monitors along baseboards show whether spider numbers are actually falling after treatment.Did you know?
Male black widows are tiny, patterned and harmless
Jumping spiders see in color and plan their route before they pounce
Questions people ask
Why do spiders keep coming back after I clean?
Usually because the insects they eat are still around. Egg sacs and gaps around doors also keep them coming.
Is spider treatment safe for pets and children?
Keep kids and pets away until treated areas dry. Ask what product they'll use. Applied by the label, yes.
Is a spider bite what I think it is?
Many 'spider bites' are really other insects or skin infections. See a doctor if a bite spreads, blisters or hurts badly. Often not.
What attracts spiders to a house?
Spiders follow insects to porch lights, damp spots and clutter. Cut the insects and spiders follow. Food, mostly.
Why are there suddenly so many spiders in fall?
Many end up indoors by accident. It usually settles down in a few weeks. Males wander in late summer and fall looking for mates.
What does a spider spray cost?
Between $200 and $500 is Local quotes vary; ask for a written estimate.
What does a severe spider infestation cost to treat?
Across Orem, between $300 and $1,000 is Local quotes vary; ask for a written estimate.
Are there dangerous spiders in Orem?
Black widows, yes, as almost everywhere. Most other spiders here are harmless.
When are spiders worst in Orem?
Late summer and fall, when males wander.
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Sources (12)
The facts in this article come from the public sources listed above. Every home is different, so ask the company you talk to about pricing and what’s included. Published by Spider Exterminator · Updated September 11, 2026 · How we write these guides