The short version
Most spiders in Redmond are harmless. Black widows live here, as in every lower-48 state. Redmond 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.
Homeowners and renters in Redmond who'd like fewer spiders, and peace of mind about the dangerous ones.
What to look for
Webs and egg sacs keep the cycle going. Most are harmless and even helpful. More insects means more spiders. Spiders follow their food.
- 1Shed spider skins on windowsills and baseboards.
- 2Spiders in stored boxes, shoes or seldom-worn clothing.
- 3A shiny black spider with a red hourglass underneath.
- 4Tan spider with a violin mark and six eyes.
- 5Fresh cobwebs in corners days after cleaning them.
- 6Spiders wandering across walls at night.
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
What turns up in Redmond homes is mostly harmless: house spiders, cellar spiders and orb weavers. A careful look in Redmond separates those from a black widow or, where they occur, a brown recluse.
- Time
- 45–90 minutes
- Best for
- Every job; the species decides how much to do
Web and Egg-Sac Removal
$100–$250
A good pro in Redmond works high and low: gable vents, light fixtures, deck undersides and the gap behind shutters. Those spots stay webbed because nobody looks there.
- Time
- 30–90 minutes
- Best for
- Visible webbing on eaves, porches, sheds and basements
Monitoring and Follow-Up
$50–$150 per visit
Ask for a note of what the follow-up turned up. Tracking traps shows whether the plan works.
- Time
- 20–45 minutes
- Best for
- Confirming results; recluse or widow properties
Exterior Perimeter Treatment and Void Dusting
$150–$350
Confirmed widows or recluses mean treating their hiding spots. Think crawl spaces, boxes, woodpiles and outdoor furniture.
- 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.
Basements stay dark, damp and quiet, which is everything a spider wants.Which spiders live around Redmond.
Hobo spiders are common in the Northwest. Despite their reputation, they aren't considered dangerous. Most spiders in Redmond homes are house spiders, cellar spiders, jumping spiders and wolf spiders. All are harmless to people. Around Redmond, they're western black widows, usually hiding under decks, grills and meter covers. Brown recluses don't live around Redmond. Most suspects turn out to be harmless look-alikes.
Local spiders conditions in Redmond.
Knowing Redmond'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. A provider who works Redmond and Washington 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. Redmond sits in a marine west coast climate, and that sets the pace for spider activity here: late summer through fall (August-October). In Redmond, 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 Redmond usually starts outside and works inward, checking the foundation, gaps around doors and windows, and any moisture or clutter near the structure first.
The gap under a door is one of the easiest ways in, for spiders and for the insects they follow.When you’ll see more of them.
Spring brings a new hatch. Clear egg sacs in winter. You'll see the most in late summer and fall. That's when males wander. Winter lows around 36°F in Redmond slow spiders outside, but house spiders carry on indoors.
Where they hide in houses here.
Check crawl vents, the crawl door and the undersides of porches. Inside, check closets and corners. Many houses around Redmond have crawl spaces, and cellar spiders and widows love them.
A year of spiders in Redmond.
- Summer: highs near 76°F in Redmond bring more insects, and more spiders. - Fall: males wander indoors. Peak spider season. - Winter: with lows near 36°F in Redmond, a good time to clear clutter and seal gaps. - Spring: new spiderlings hatch. Vacuum webs and egg sacs.
Harmless or worth a closer look?
- 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. - Black widow: shiny black, red hourglass underneath. Leave it alone.
If you think you’ve been bitten.
Wash the bite with soap and water. 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.
Fewer spiders, the easy way.
- 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. - Lights: yellow bug lights draw fewer insects.
Webs outside: leave some, clear some.
- 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. - Garden orb weavers: leave them. They catch flies and mosquitoes.
Spider myths.
- 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. - Swallowing spiders in your sleep: no evidence it happens.
Spiders and pets.
Most spiders are no threat to 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.
What a spider visit looks like.
Most visits take about an hour. 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.
Sticky traps tell you a lot.
They show which spiders you have and where they travel. Set sticky traps along baseboards, behind furniture and in the garage. Check them after a week.
Outdoor lights and spiders.
Motion-sensor lights help too. Porch lights draw insects, and insects draw spiders. Yellow bulbs attract fewer bugs.
Cellar spiders in the basement.
A dehumidifier and a broom keep them in check. Long-legged cellar spiders hang in basement corners. They're harmless and even eat other spiders.
Spiders in the garage.
A door sweep and a sticky trap by the door help. Garages collect webs, boxes and insects. Store things in sealed bins off the floor.
Questions to ask before you sign.
- 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? - Which spiders did you find?
What affects the price
- Bundling with an existing general pest plan.
- Door sweeps, screens and sealing work.
- One-time visit versus recurring plan.
- Whether a widow or recluse is confirmed.
- Lighting changes recommended or performed.
- Exterior siding type and number of gaps.
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What's your biggest concern about spiders?
When to call for help
High eaves and attics are worth leaving to a pro. Call if a black widow is near where kids play. if spiders keep coming back after cleaning.
What you can do yourself
Start simple. Switch to yellow bug lights. Add door sweeps and store things in sealed bins. Skip foggers. They don't reach hiding spots. A pro adds targeted treatment in cracks and voids.
Spiders in Redmond
Redmond has a marine west coast climate, and spiders activity here tends to follow late summer through fall (August-October). An inspection in Redmond that starts outside and works inward usually finds the entry points, moisture, and shelter that matter most before anyone treats. With about 37 inches of rain a year and humidity near 73%, Redmond supports plenty of insects, and spiders follow them. In denser parts of Redmond, spiders favor stairwells, garages, basements and window frames.
Local research
Spiders in Redmond, WA: what the public record shows
Before you compare quotes, it helps to know which spiders actually live in Washington, when they are busiest around Redmond, and what the state figures look like. Everything below links to the agency or university page it came from.
Spider species recorded in Washington
- Western black widow (Latrodectus hesperus) — 'The black widow spider, Latrodectus hesperus, is the most common harmful spider in California' and 'occur in most parts of California' (UC IPM); 'common in Colorado' (CSU); Lat…
- 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…
- Yellow sac spider (Cheiracanthium spp.) — 'Can be seen running on walls and ceilings at night'; bites happen when 'trapped against a person's skin in clothing or bedding' (UC IPM). One of two spiders of medical signific…
When spiders are busiest around Redmond
'When temperatures start to cool, spiders may migrate into garages and homes in search of warmth and shelter' (WA DOH).
'There are two spiders in Washington of medical significance: the black widow spider' and the yellow sac spider; 'Hobo spiders (Eratigena agrestis) are not considered dangerous as previously thought' and 'can be found throughout Washington' (WA DOH). Black widows 'common to eastern Washington'; yellow sac spiders 'in eastern Washington and in the Seattle area'.
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: CDC/NIOSH; Pest Notes: Spiders (PN 7442); Hobo Spider. Figures are quoted as the source prints them. How we check our sources
Simple ways to keep spiders away
- Move fixtures away from doors where possible.
- Install door sweeps on every exterior door.
- Inspect items brought in from sheds and garages.
- Reduce clutter in closets and storage rooms.
- Fix leaks and standing water in crawl spaces.
- Seal gaps around pipes, cables and vents.
Spiders found in a bathtub or vanity usually wandered in from a gap behind the plumbing, not up the drain.Did you know?
Some spiders can survive months without a meal
Jumping spiders see in color and plan their route before they pounce
Questions people ask
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.
Do brown recluses live in my area?
Probably not. Washington is outside the brown recluse range.
How do I choose a spider control company?
Ask them to identify the spiders before treating. Ask what's included and what happens if they come back. Check that they're licensed in Washington.
What does a professional spider treatment involve?
Then they remove webs and egg sacs and seal gaps. Last comes a targeted treatment in cracks and voids. An inspection to identify the spiders first.
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 monthly spider control worth it?
In Redmond, monthly visits roughly double the annual cost of quarterly ones, based on Local quotes vary; ask for a written estimate. Local quotes vary. Only for heavy or persistent activity.
Was it really a spider bite?
In Redmond, in Suchard's study of 182 patients presenting with suspected spider bites at a single California emergency department from January 2006 to November 2007, published in 2011, only 3.8% were diagnosed as spider bites, while most were infections. A good pro in Redmond can explain why their plan matches what they found at your place. Probably not.
Are there dangerous spiders in Redmond?
Black widows, yes, as almost everywhere. Most other spiders here are harmless.
When are spiders worst in Redmond?
Late summer and fall, when males wander.
Nearby cities
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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