The short version
Around Altoona, 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 Altoona with a nest near a door, deck or play area.
What to look for
Wasps defend the area around their nest. Near a door or deck, stings will happen. Late-summer colonies are big and quick to sting.
- 1Buzzing audible through a ceiling or wall on warm afternoons.
- 2Wasps flying straight lines to and from one spot.
- 3Wasps entering an attic vent, dryer vent or weep hole.
- 4Wasps clustered at a hummingbird feeder or ripe grapes.
- 5Wasps hovering at a mulch bed or retaining wall gap.
- 6Grey, papery football-shaped nest hanging in a tree or eave.
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
The inspection also flags anyone in the Altoona household with a sting allergy, which changes how and when the work gets done. Ask for photos of what was found.
- Time
- 45–75 minutes
- Best for
- Every job; species and nest location decide the method
Aerial Nest Treatment and Removal
$100–$400
Bald-faced hornet nests, the grey football-shaped ones, defend aggressively and are best left to an Altoona professional with a bee suit and a long-reach applicator. Small paper wasp combs are a simpler job.
- Time
- 30–90 minutes
- Best for
- Exposed paper wasp, hornet and bald-faced hornet nests
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
- Sealing soffits, vents and gaps after a wall nest has died
Ground and Wall-Void Nest Treatment
$150–$500
Expect a return visit for void nests around Altoona homes, because dust works over several days rather than minutes. The follow-up confirms the colony is finished before sealing.
- Time
- 30–60 minutes plus a return visit
- Best for
- Yellowjackets in lawns, retaining walls, soffits and wall voids
Prices are typical published ranges. Ask what’s included before you compare quotes.
Yellowjackets often nest in old rodent holes and gaps in garden walls. Watch for wasps flying low and steady into one spot.Which wasps live around Altoona.
Bald-faced hornets build big gray nests in trees and eaves. European hornets live in Pennsylvania too. They're large, fly at night, and nest in hollow trees. Mud daubers build tube-shaped mud nests. They rarely sting. Paper wasps are the most common around Altoona. They build open, umbrella-shaped combs under eaves and railings. Eastern yellowjackets nest in the ground and in wall voids. They cause most stings.
Local wasps conditions in Altoona.
An inspection in Altoona usually starts outside and works inward, checking the foundation, gaps around doors and windows, and any moisture or clutter near the structure first. Knowing Altoona'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 Altoona and Pennsylvania 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. Altoona sits in a humid continental climate, and that sets the pace for wasp activity here: mid-summer through fall (July-October). For Altoona 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 Altoona out to State College share the same favorite nest spots. Plenty of homes in Altoona have basements, but most nests are higher up. Check eaves, attic vents and window frames.
A year of wasps in Altoona.
- Summer: highs near 82°F in Altoona help colonies grow fast. - Late summer: peak season. Workers hunt sweets near people. - Winter: lows near 21°F in Altoona. 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
- Return visit to confirm a void nest is dead.
- Local labor rates and seasonal demand.
- Sealing gaps after the nest is dead.
- Exposed comb versus enclosed nest inside a wall or soffit.
- Preventive spring treatment bundled with removal.
- Dense siding, brick or stone that limits dust access.
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What's your biggest concern about wasps?
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
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 Altoona
With summer highs near 82°F in Altoona, colonies grow fast and are biggest by August. Winter lows near 21°F in Altoona end the season; only new queens survive, tucked into sheltered spots. In Altoona's neighborhoods, eaves, decks, play sets and shrubs are favorite nest sites.
Local research
Wasps in Altoona, PA: what the public record shows
Before you compare quotes, it helps to know which wasps actually live in Pennsylvania, when they are busiest around Altoona, and what the state figures look like. Everything below links to the agency or university page it came from.
Bald-faced hornet colony size in Pennsylvania (Penn State)
The gray football nest in a shrub can hold hundreds of defensive workers.
Penn State ExtensionEuropean hornet peak nest size (Penn State)
Large nests may reach 1,000 workers; they are active at night and drawn to porch lights.
Penn State ExtensionPaper wasp colony size (Penn State)
Eave nests are small but multiply around a single house.
Penn State ExtensionWasp species recorded in Pennsylvania
- 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…
- Eastern yellowjacket (Vespula maculifrons) — UF/IFAS lists it with the southern yellowjacket as Florida's two yellowjackets; OSU lists it for Ohio; Texas A&M notes it is 'generally found in eastern Texas'. Ground nests 9.5…
- 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 hornet (Vespa crabro) — Penn State: 'first detected in the 1840s', 'well established in the eastern United States', 'first reported from Arkansas in 1999'; workers 'up to an inch (25 mm) long', nests '…
When wasps are busiest around Altoona
Paper wasp queens 'establish nests in May' and colonies are essentially gone 'By the end of September'; European hornet nests peak in mid-September and die at the first hard frosts (Penn State).
Penn State: European hornet is 'well established in the eastern United States, including all of Pennsylvania' and is the 'only nocturnal wasp in Pennsylvania'. Yellowjacket colonies 'range in size from only a few hundred individuals to thousands of members'.
Rules that apply in Pennsylvania
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: Baldfaced Hornet; European Hornet; Penn State Extension; CDC MMWR; Yellowjackets and Other Social Wasps (Pest Notes); Yellowjackets and Hornets, Vespula and Dolichovespula spp. (Insecta: Hymenoptera: Vespidae). Figures are quoted as the source prints them. How we check our sources
Simple ways to keep wasps away
- Hang wasp traps at the yard edge, not the patio.
- Store pet food indoors and clean bowls after meals.
- Note where nests appeared and inspect there early next year.
- Fill old rodent burrows and mulch-bed holes in spring.
- Repair torn window screens and door sweeps.
Jot down where nests turned up this year. Queens often pick the same eaves and gaps, so you'll know where to look first next spring.Did you know?
Fig wasps pollinate figs and are smaller than a rice grain
European hornets hunt at night and are drawn to porch lights
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.
Do wasp traps work?
They catch some yellowjackets, but rarely fix a nest problem. Place them away from where people sit.
Can I seal the hole wasps are using?
No. Sealing traps them inside. They may chew into your house. Treat first, then seal once activity stops.
Can wasps damage my house?
Rarely by much. Yellowjackets in walls can chew through drywall. Carpenter bees do more wood damage.
How do I know if I have wasps, hornets or yellowjackets?
Paper wasps build open, umbrella-shaped combs. Yellowjackets nest in the ground or walls. Hornets build big, gray, closed nests.
Are wasps considered an under-controlled pest?
Often, yes. For Altoona homes, many nests go unnoticed until late summer, when colonies are biggest and most defensive.
When is wasp season in Altoona?
Around Altoona, queens start nests in May, and colonies peak in late summer. Nests die back after the first hard freeze in fall.
Are hornets common in Altoona?
Bald-faced hornets are, in trees and on eaves.
Nearby cities
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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