The short version
Most wasp nests in Portland cost about $100–$400 to treat and remove. Nests inside walls or high up cost more.
- Most wasp nests in Portland cost about $100–$400.
- Wall, ground and high nests cost more.
- Ask whether nest removal is included.
- Small spring nests are cheap to deal with.
- Compare what each quote covers.
Anyone in Portland dealing with wasps, hornets or yellowjackets at home.
What to look for
Wasps defend the area around their nest. Near a door or deck, stings will happen. Around Portland, queens start nests in May, and colonies peak in late summer. Late-summer colonies are big and quick to sting.
- 1Grey, papery football-shaped nest hanging in a tree or eave.
- 2Wasps disappearing into a hole in the lawn or a wall.
- 3Wasps flying straight lines to and from one spot.
- 4Wasps clustered at a hummingbird feeder or ripe grapes.
- 5Chewed, scarred wood on fences, decks or cedar siding.
- 6Yellowjackets crowding trash cans, soda cans and pet food.
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.
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Estimate wasp removal cost in Portland
Adjust for your situation to see a ballpark range.
Estimated range
A rough guide only. Wall, ground and high nests cost more.
Treatment options and typical costs
Inspection and Nest Identification
$75–$200
Expect a pro to check eaves, vents, sheds and the ground. Multiple nests are common late in the season.
- Time
- 45–75 minutes
- Best for
- Every job; species and nest location decide the method
Ground and Wall-Void Nest Treatment
$150–$500
Foam and sprays rarely reach the back of a deep void. Pros use dust for hidden nests and sprays for open combs.
- Time
- 30–60 minutes plus a return visit
- Best for
- Yellowjackets in lawns, retaining walls, soffits and wall voids
Preventive Spring Treatment and Follow-Up
$150–$400
In early spring, overwintered queens in Portland scout eaves and sheltered corners for a place to start a colony. A residual treatment on those surfaces discourages early nest building.
- Time
- 45–90 minutes
- Best for
- Homes with repeat nests or a sting allergy in the household
Sealing Up After the Nest Is Dead
$150–$450
Sealing is priced by the number and size of openings. One gap is quick; a row of open vents takes longer.
- 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.What wasp removal costs in Portland.
- Sealing Up After the Nest Is Dead: $150–$450 - Preventive Spring Treatment and Follow-Up: $150–$400 - Ground and Wall-Void Nest Treatment: $150–$500 - Inspection and Nest Identification: $75–$200 - A typical home in Portland is worth around $535k, and most wasp jobs are a one-time cost. Late-summer nests are bigger, so book early if you can.
Local wasps conditions in Portland.
Portland sits in a mediterranean climate, and that sets the pace for wasp activity here: mid-summer through fall (July-October). In Portland, the area is mostly urban, 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. An inspection in Portland usually starts outside and works inward, checking the foundation, gaps around doors and windows, and any moisture or clutter near the structure first. Knowing Portland'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 Portland and Oregon 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.
An unscreened foundation vent is an easy way in for a yellowjacket queen. Wasps flying in and out of a vent all day are a sign of a nest inside.Which wasps live around Portland.
Paper wasps are the most common around Portland. They build open, umbrella-shaped combs under eaves and railings. Western yellowjackets nest in the ground and in wall voids. 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.
When they’re most active.
Nests die back with the first hard freeze, around November. Early spring is the easiest time to remove small starts.
Where they nest around houses here.
Many houses around Portland have crawl spaces, and vents and access doors invite nests. Check eaves, porch ceilings and the crawl vents. Watch for traffic in and out of gaps. A ground nest looks like wasps streaming from one hole. Homes from Portland out to Lake Oswego and Tigard share the same favorite nest spots.
A year of wasps in Portland.
- Winter: lows near 36°F in Portland. Nests die; only queens survive. - Late summer: peak season. Workers hunt sweets near people. - Summer: highs near 81°F in Portland help colonies grow fast. - Spring: queens start new nests around May. Knock down small starts.
Wasp, hornet or bee?
- Honey bee: fuzzy and golden. about relocation. - Mud dauber: thin waist, mud tube nests. Rarely stings. - Hornet: larger, with a big closed paper nest. - Yellowjacket: bright yellow and black, nests in the ground. - Paper wasp: slim, long legs, open comb.
If you get stung.
If someone carries an epinephrine pen, use it. 911 for trouble breathing or a swollen face or throat. An antihistamine can ease itching and swelling. Wash the sting and use a cold pack. Move away from the nest first.
Keeping wasps away from the patio.
- Gaps: seal gaps after a nest is gone. - Spring checks: knock down small nests early. - Fruit: pick up fallen fruit. - Trash: keep lids tight and bins away from doors. - Food: cover plates and drinks outdoors.
Ground nests: what to do.
Pros treat ground nests at night, when the colony is home. Don't pour gasoline or water in. Don't mow over it. Keep kids and pets away. Mark the hole with a flag.
A nest, or just visitors?
Follow the line back to an eave, vent, shrub or hole. Watch at dusk, when they fly home. A nest shows steady traffic to one spot. Wasps on flowers or trash cans may come from far away.
Treating a small nest yourself, safely.
- Leave it overnight, then bag the nest. - Never spray from a ladder. - Use a jet wasp spray from several feet away. - Wear long sleeves, pants and gloves. - Wait until dusk, when wasps are home and slow. - Never if anyone in the house is allergic. - Only if it’s small, low and out in the open.
Wasps and pets.
Keep pet food and water bowls indoors in late summer. your vet if the throat swells or breathing changes. Most stings just swell a little. Dogs often snap at wasps and get stung on the face.
Kids and wasps.
Use cups with lids for sweet drinks outside. Check play sets, slides and playhouses for nests each spring. Swatting makes a sting more likely. Teach kids to walk away calmly.
After the nest is gone.
Knock down small new nests early next spring. Check nearby eaves for new starts. Seal the gap a wall nest used once it's quiet. Wasps don't reuse old nests.
Wasps at picnics and barbecues.
- Kids: teach them to walk away calmly. - Calm: don’t swat; slowly move away. - Trash: bag scraps and close the bin. - Food: keep it covered until you eat. - Drinks: use cups with lids or straws.
Ground nests in the lawn.
Mark it, and keep mowers and kids away until it's treated. Watch for wasps flying in and out of the grass. Yellowjackets often nest in old rodent holes.
Questions to ask before you sign.
- Is a return visit included? - Is removal of the dead nest included? - How will you treat a nest inside the wall? - What kind of wasp is it?
Ways to keep the cost down.
- Seal gaps once a nest is gone. - Ask if removal is included. - Call early, before nests get big. - Knock down small nests in spring.
What affects the price
- Colony size, which climbs sharply from June to September.
- Species: paper wasps cost least, hornets and yellowjackets more.
- After-hours, weekend or emergency scheduling.
- Nest height and whether a ladder or lift is needed.
- Return visit to confirm a void nest is dead.
- Dense siding, brick or stone that limits dust access.
- Number of nests found on the property.
- Whether nest removal is included after treatment.
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What's your biggest concern about wasp control costs?
When to call for help
Call for nests in walls, attics, the ground, or anywhere high. right away if anyone in the house is allergic. Don't seal a hole wasps are using. They'll find another way in.
What you can do yourself
Knock it down the next day. Big, high or hidden nests are a job for a pro. A small, reachable paper wasp nest is a fair DIY job. Spray it at dusk with a wasp aerosol.
Wasps in Portland
In denser parts of Portland, nests turn up in eaves, balconies, signs and wall gaps. Winter lows near 36°F in Portland end the season; only new queens survive, tucked into sheltered spots. With summer highs near 81°F in Portland, colonies grow fast and are biggest by August.
Local research
Wasps in Portland, OR: what the public record shows
Before you compare quotes, it helps to know which wasps actually live in Oregon, when they are busiest around Portland, and what the state figures look like. Everything below links to the agency or university page it came from.
Wasp species recorded in Oregon
- 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…
- 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…
- Native paper wasps (Polistes spp. (e.g., P. fuscatus, P. apachus, P. exclamans)) — Open umbrella-shaped nests under eaves, porch ceilings and railings. UC IPM: paper wasp colonies 'vary between 15 to 200 individuals'; Penn State: queens 'establish nests in May…
When wasps are busiest around Portland
Western yellowjacket queens start nests each spring, colonies grow through summer and scavenge aggressively in fall before dying off; only fertilized queens overwinter (USU).
Bald-faced hornet range per Penn State covers most of the 48 contiguous states and D.C. Western yellowjacket is the dominant scavenging wasp of the Western states (UC IPM).
Rules that apply in Oregon
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: 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
- Seal soffit seams and fascia gaps before spring.
- Store pet food indoors and clean bowls after meals.
- Cap hollow fence posts, railings and play-set tubes.
- Trim shrubs so nests cannot hide near walkways.
- Keep trash cans lidded and rinse recycling before binning.
For a nest in the ground or a wall, a pro treats the entrance and checks back to make sure the traffic has stopped before anything is sealed.Did you know?
Some paper wasps can tell their nestmates apart by their faces
Yellowjacket nests are never reused a second year
Questions people ask
Is a preventive spring treatment worth the cost?
If you get nests every year, it can be. Otherwise, check eaves in spring and knock down small starts.
Why does a nest inside a wall cost more?
It takes more work to reach and treat. Sometimes it needs a return visit or drywall repair.
What should a good quote include?
Nest type and location, treatment, removal and return visits.
Does homeowners insurance cover wasp removal?
Usually not. Insurers treat it as routine maintenance.
Should I be worried about a nest in the ground?
Mowing over them sets them off. Ground nests are usually yellowjackets. Yes, if it's near a path or play area.
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.
How do I find a good wasp control company?
Check that they're licensed in Oregon. Ask how they treat hidden nests and whether removal is included.
What stops people from dealing with wasp nests?
In Portland, fear of stings, nests that are hard to reach, and not noticing them until they're big.
How often should you check your property for wasp nests?
Every week or two from spring through late summer. In Portland, look under eaves, decks, sheds and play equipment, where small nests are easy to deal with.
Are hornets common in Portland?
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