The short version
Around Spokane Valley, queens start nests in May, and colonies peak in late summer. Small, low paper wasp nests can be handled at dusk. Leave wall, ground and high nests to a pro.
- Treat nests at dusk, when wasps are home.
- Never seal a hole wasps are using.
- Ground and wall nests are best left to a pro.
- Knock down small nests early in spring.
- Call 911 for breathing trouble after a sting.
Homeowners and renters in Spokane Valley with a nest near a door, deck or play area.
What to look for
Late-summer colonies are big and quick to sting. Near a door or deck, stings will happen. Wasps defend the area around their nest.
- 1Wasps flying straight lines to and from one spot.
- 2Wasps disappearing into a hole in the lawn or a wall.
- 3Buzzing audible through a ceiling or wall on warm afternoons.
- 4Grey, papery football-shaped nest hanging in a tree or eave.
- 5Multiple stings on one person during a single outdoor task.
- 6Wasps entering an attic vent, dryer vent or weep hole.
Why it’s worth acting soon
- Nests grow all summer.
- Ground nests get disturbed by mowing.
- Wall nests can chew through into rooms.
- Stings are dangerous for anyone allergic.
Treatment options and typical costs
Inspection and Nest Identification
$75–$200
Nest location drives everything else in Spokane Valley: height, whether it sits in a void, and how close it is to doors or play areas. The inspection should end with a plan and a price.
- Time
- 45–75 minutes
- Best for
- Every job; species and nest location decide the method
Preventive Spring Treatment and Follow-Up
$150–$400
Follow-up matters after any treatment around a property. A second look two weeks later catches missed nests.
- Time
- 45–90 minutes
- Best for
- Sting allergies or repeat nest spots
Ground and Wall-Void Nest Treatment
$150–$500
Yellowjackets nesting in Spokane Valley lawns, retaining walls and old rodent burrows are treated by applying insecticidal dust directly into the entrance hole. Dust carries deep into the chambers as workers walk through it.
- Time
- 30–60 minutes plus a return visit
- Best for
- Yellowjackets in lawns, retaining walls, soffits and wall voids
Sealing Up After the Nest Is Dead
$150–$450
Sealing work targets the places wasps favor in Spokane Valley: soffit seams, attic and dryer vents, gaps around utility lines and loose fascia boards. Vent screens and sealant handle most of it.
- Time
- 1–2 hours
- Best for
- Closing soffits, vents and gaps once a void nest is dead
Prices are typical published ranges. Ask what’s included before you compare quotes.
In cold-winter areas, old nests are empty by now. It's a good time to fix vent covers and siding gaps before queens go looking in spring.Which wasps live around Spokane Valley.
They cause most stings. Bald-faced hornets build big gray nests in trees and eaves. Mud daubers build tube-shaped mud nests. They rarely sting. Paper wasps are the most common around Spokane Valley. They build open, umbrella-shaped combs under eaves and railings. Western yellowjackets nest in the ground and in wall voids.
Local wasps conditions in Spokane Valley.
An inspection in Spokane Valley usually starts outside and works inward, checking the foundation, gaps around doors and windows, and any moisture or clutter near the structure first. Knowing Spokane Valley'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 Spokane Valley 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. Spokane Valley sits in a warm summer continental climate, and that sets the pace for wasp activity here: mid-summer through fall (July-October). For Spokane Valley homes, the area is mostly suburban, so wasps 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.
Yellowjackets sometimes nest in attics and wall voids, getting in through a torn vent screen or a gap in the soffit. Buzzing in a ceiling is worth a look.When they’re most active.
Nests die back after the first hard freeze in fall. Early spring is the easiest time to remove small starts.
Where they nest around houses here.
Watch for traffic in and out of gaps. A ground nest looks like wasps streaming from one hole. Homes from Spokane Valley out to Spokane share the same favorite nest spots. Many houses around Spokane Valley have crawl spaces, and vents and access doors invite nests. Check eaves, porch ceilings and the crawl vents.
A year of wasps in Spokane Valley.
- Summer: highs near 84°F in Spokane Valley help colonies grow fast. - Late summer: peak season. Workers hunt sweets near people. - Winter: lows near 23°F in Spokane Valley. Nests die; only queens survive. - Spring: queens start new nests around May. Knock down small starts.
Wasp, hornet or bee?
- Yellowjacket: bright yellow and black, nests in the ground. - Hornet: larger, with a big closed paper nest. - Mud dauber: thin waist, mud tube nests. Rarely stings. - Honey bee: fuzzy and golden. about relocation. - Paper wasp: slim, long legs, open comb.
If you get stung.
An antihistamine can ease itching and swelling. 911 for trouble breathing or a swollen face or throat. If someone carries an epinephrine pen, use it. Move away from the nest first. Wash the sting and use a cold pack.
Keeping wasps away from the patio.
- Trash: keep lids tight and bins away from doors. - Fruit: pick up fallen fruit. - Spring checks: knock down small nests early. - Gaps: seal gaps after a nest is gone. - Food: cover plates and drinks outdoors.
Ground nests: what to do.
Don't mow over it. Don't pour gasoline or water in. Pros treat ground nests at night, when the colony is home. Mark the hole with a flag. Keep kids and pets away.
A nest, or just visitors?
Watch at dusk, when they fly home. Follow the line back to an eave, vent, shrub or hole. Wasps on flowers or trash cans may come from far away. A nest shows steady traffic to one spot.
Treating a small nest yourself, safely.
- Never if anyone in the house is allergic. - Wait until dusk, when wasps are home and slow. - Wear long sleeves, pants and gloves. - Use a jet wasp spray from several feet away. - Never spray from a ladder. - Leave it overnight, then bag the nest. - Only if it’s small, low and out in the open.
Wasps and pets.
your vet if the throat swells or breathing changes. Keep pet food and water bowls indoors in late summer. Dogs often snap at wasps and get stung on the face. Most stings just swell a little.
Kids and wasps.
Check play sets, slides and playhouses for nests each spring. Use cups with lids for sweet drinks outside. Teach kids to walk away calmly. Swatting makes a sting more likely.
After the nest is gone.
Check nearby eaves for new starts. Knock down small new nests early next spring. Wasps don't reuse old nests. Seal the gap a wall nest used once it's quiet.
Wasps at picnics and barbecues.
- Food: keep it covered until you eat. - Trash: bag scraps and close the bin. - Calm: don’t swat; slowly move away. - Kids: teach them to walk away calmly. - Drinks: use cups with lids or straws.
Ground nests in the lawn.
Watch for wasps flying in and out of the grass. Mark it, and keep mowers and kids away until it's treated. Yellowjackets often nest in old rodent holes.
Questions to ask before you sign.
- How will you treat a nest inside the wall? - Is removal of the dead nest included? - Is a return visit included? - What kind of wasp is it?
What affects the price
- Preventive spring treatment bundled with removal.
- Exposed comb versus enclosed nest inside a wall or soffit.
- Return visit to confirm a void nest is dead.
- Sting allergy in the home requiring extra precautions.
- Sealing gaps after the nest is dead.
- Whether nest removal is included after treatment.
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What's your biggest concern about wasps?
When to call for help
They'll find another way in. Don't seal a hole wasps are using. right away if anyone in the house is allergic. Call for nests in walls, attics, the ground, or anywhere high.
What you can do yourself
A small, reachable paper wasp nest is a fair DIY job. Spray it at dusk with a wasp aerosol. Knock it down the next day. Big, high or hidden nests are a job for a pro.
Wasps in Spokane Valley
Spokane Valley only gets about 17 inches of rain a year, so local wasps often gather at pools, fountains and dripping taps. Winter lows near 23°F in Spokane Valley end the season; only new queens survive, tucked into sheltered spots. In Spokane Valley's neighborhoods, eaves, decks, play sets and shrubs are favorite nest sites.
Local research
Wasps in Spokane Valley, WA: what the public record shows
Before you compare quotes, it helps to know which wasps actually live in Washington, when they are busiest around Spokane Valley, and what the state figures look like. Everything below links to the agency or university page it came from.
Northern giant hornet nests eradicated in Washington (USDA APHIS)
The hornet is declared eradicated; report any suspected sighting to WSDA.
USDA APHISShare of confirmed northern giant hornet detections that came from public reports
Public reporting remains the backbone of WSDA's hornet surveillance.
USDA APHISWasp species recorded in Washington
- Western yellowjacket (Vespula pensylvanica) — UC IPM: 'the most commonly encountered species and is sometimes called the "meat bee"' in California and the Western states; ground and wall-void nester and aggressive scavenger…
- German yellowjacket (Vespula germanica) — UC IPM: 'becoming more common in many urban areas of California, where it frequently nests in houses.' Named among Ohio's three main species (German, Eastern, Common yellowjacke…
- Bald-faced hornet (Dolichovespula maculata) — Penn State: 'found in most of the 48 contiguous states and D.C., throughout Canada and in Alaska'; actually an aerial yellowjacket that builds the football-shaped gray paper nes…
- European paper wasp (Polistes dominula) — Penn State: 'first reported in 1978 around Boston', now 'coast to coast ... although they are apparently less common in the Southeast and Great Plains'; nests in 'eaves of struc…
When wasps are busiest around Spokane Valley
Western yellowjacket queens start nests each spring, colonies grow through summer and scavenge aggressively in fall before dying off; only fertilized queens overwinter (USU).
APHIS: the northern giant hornet 'first captured national attention in late 2019 when it was detected near Blaine, Washington' and 'has been eradicated from Washington State and the United States'. WSDA maintains hornet identification and sighting-report pages.
Rules that apply in Washington
For context, nationally
- 788 — Deaths from hornet, wasp, and bee stings, 2011–2021 (US). CDC MMWR
- 72 deaths per year — Average annual sting deaths, 2011–2021 (US). CDC MMWR
Sources: USDA APHIS; CDC MMWR; Yellowjackets and Other Social Wasps (Pest Notes); Baldfaced Hornet; European Paper Wasp. Figures are quoted as the source prints them. How we check our sources
Simple ways to keep wasps away
- Cap hollow fence posts, railings and play-set tubes.
- Store pet food indoors and clean bowls after meals.
- Walk the eaves in April and knock down starter nests.
- Caulk around cable, gas and conduit entry points.
- Fill old rodent burrows and mulch-bed holes in spring.
A good wasp quote names the species, where the nest is, how it will be treated and whether taking it down or sealing the gap is included.Did you know?
European hornets hunt at night and are drawn to porch lights
Only newly mated queens survive the winter
Questions people ask
Why are there suddenly so many wasps in late summer?
Colonies are at their biggest by late summer. Food gets scarce, so workers hunt sweets and protein near people.
What time of day should a wasp nest be treated?
At dusk or after dark, when they're home and calm.
How long does wasp nest removal take?
Usually under an hour. Hidden nests may need a second visit a few days later.
Can I just leave the nest alone until winter?
If it's out of the way, often yes. Around Spokane Valley, nests die back after the first hard freeze in fall.
Wasp or bee: does it matter?
Wasps are smooth and narrow-waisted. Bees are fuzzy and rounder. It matters because honey bees can often be relocated.
How often should you check your property for wasp nests?
Every week or two from spring through late summer. For Spokane Valley homes, look under eaves, decks, sheds and play equipment, where small nests are easy to deal with.
How seriously do people take wasp problems?
For Spokane Valley homes, most people act once a nest is near a door, deck or play area, where stings are most likely.
Are hornets common in Spokane Valley?
Bald-faced hornets are, in trees and on eaves. Most stings come from yellowjackets, though.
Nearby cities
Related guides
Sources (9)
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 Wasp Exterminator · Updated September 11, 2026 · How we write these guides