The short version
Around San Antonio, queens start nests in March, 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.
Anyone in San Antonio 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. Late-summer colonies are big and quick to sting.
- 1A soft or discolored patch of drywall with faint buzzing.
- 2Buzzing audible through a ceiling or wall on warm afternoons.
- 3Large wasps circling porch lights after dark.
- 4Yellowjackets streaming from the ground after mowing or trimming.
- 5Steady wasp traffic in and out of one soffit gap.
- 6Dead wasps collecting on interior windowsills in late summer.
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 San Antonio 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
Exposed paper wasp and hornet nests under eaves, in trees or on porch ceilings in San Antonio are treated with a fast-acting aerosol or dust, then removed once the colony is dead. Most are handled in a single visit.
- 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 San Antonio 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 San Antonio.
Bald-faced hornets build big gray nests in trees and eaves. In mild winters around San Antonio, some yellowjacket nests survive and grow huge. Leave those to a pro. Mud daubers build tube-shaped mud nests. They rarely sting. Paper wasps are the most common around San Antonio. 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 San Antonio.
An inspection in San Antonio usually starts outside and works inward, checking the foundation, gaps around doors and windows, and any moisture or clutter near the structure first. Knowing San Antonio'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 San Antonio and Texas 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. San Antonio sits in a local climate, and that sets the pace for wasp activity here: the warmer months. The area is mostly residential, 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 with the first hard freeze, around November. Early spring is the easiest time to remove small starts.
Where they nest around houses here.
Watch for wasps flying in and out of a gap. A ground nest looks like wasps streaming from one hole. Many homes in San Antonio sit on slabs, so check eaves, the garage and patio covers first. Look under railings, play sets and grills.
A year of wasps in San Antonio.
- Late summer: peak season. Workers hunt sweets near people. - Summer: highs near 96°F in San Antonio help colonies grow fast. - Spring: queens start new nests around March. Knock down small starts. - Winter: lows near 41°F in San Antonio. Some nests keep going.
Wasp, hornet or bee?
- 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. - Honey bee: fuzzy and golden. about relocation.
If you get stung.
An antihistamine can ease itching and swelling. Wash the sting and use a cold pack. Move away from the nest first. If someone carries an epinephrine pen, use it. 911 for trouble breathing or a swollen face or throat.
Keeping wasps away from the patio.
- 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. - Gaps: seal gaps after a nest is gone.
Ground nests: what to do.
Don't mow over it. Keep kids and pets away. Mark the hole with a flag. Pros treat ground nests at night, when the colony is home. Don't pour gasoline or water in.
A nest, or just visitors?
A nest shows steady traffic to one spot. Wasps on flowers or trash cans may come from far away. Follow the line back to an eave, vent, shrub or hole. Watch at dusk, when they fly home.
Treating a small nest yourself, safely.
- 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. - Leave it overnight, then bag the nest.
Wasps and pets.
Most stings just swell a little. Dogs often snap at wasps and get stung on the face. Keep pet food and water bowls indoors in late summer. your vet if the throat swells or breathing changes.
Kids and wasps.
Swatting makes a sting more likely. Teach kids to walk away calmly. Use cups with lids for sweet drinks outside. Check play sets, slides and playhouses for nests each spring.
After the nest is gone.
Seal the gap a wall nest used once it's quiet. Wasps don't reuse old nests. Knock down small new nests early next spring. Check nearby eaves for new starts.
Wasps at picnics and barbecues.
- 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. - Kids: teach them to walk away calmly.
Ground nests in the lawn.
Watch for wasps flying in and out of the grass. Yellowjackets often nest in old rodent holes. Mark it, and keep mowers and kids away until it's treated.
Questions to ask before you sign.
- Is removal of the dead nest included? - How will you treat a nest inside the wall? - What kind of wasp is it? - Is a return visit included?
What affects the price
- Local labor rates and seasonal demand.
- Sealing gaps after the nest is dead.
- After-hours, weekend or emergency scheduling.
- Species: paper wasps cost least, hornets and yellowjackets more.
- Ground nest with multiple entrances or deep burrows.
- Colony size, which climbs sharply from June to September.
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What's your biggest concern about wasps?
When to call for help
Don't seal a hole wasps are using. They'll find another way in. Call for nests in walls, attics, the ground, or anywhere high. right away if anyone in the house is allergic.
What you can do yourself
Big, high or hidden nests are a job for a pro. Knock it down the next day. Spray it at dusk with a wasp aerosol. A small, reachable paper wasp nest is a fair DIY job.
Wasps in San Antonio
In denser parts of San Antonio, nests turn up in eaves, balconies, signs and wall gaps. Winter lows near 41°F in San Antonio are mild, so some yellowjacket nests survive the winter and keep growing. With summer highs near 96°F in San Antonio, colonies grow fast and are biggest by August.
Local research
Wasps in San Antonio, TX: what the public record shows
Before you compare quotes, it helps to know which wasps actually live in Texas, when they are busiest around San Antonio, and what the state figures look like. Everything below links to the agency or university page it came from.
Perennial southern yellowjacket nest size reported in Texas and other southern states
Multi-year colonies in wall voids or ground are a professional-only removal.
Texas A&M AgriLife ExtensionCicada killer body length (Texas A&M)
The huge summer wasp digging in lawns is nearly harmless and is not a hornet.
Texas A&M AgriLife ExtensionWasp species recorded in Texas
- 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…
- Southern yellowjacket (Vespula squamosa) — Texas A&M: 'Colonies can contain up to 4,000 workers', 'In Texas, some colonies can survive for several years and continue to grow', and southern colonies '6 ft across' have bee…
- 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…
- 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 San Antonio
Texas A&M: 'In Texas, some colonies can survive for several years and continue to grow'; reproductive cells are built 'Late in the summer'. Cicada killers are 'One of the signs of summer in Texas'.
Southern yellowjacket nests 'are most often underground, but occasionally are found in wall voids and indoors' (Texas A&M). Eastern yellowjacket is 'generally found in eastern Texas'.
Rules that apply in Texas
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: Southern Yellowjackets - Field Guide to Common Texas Insects; Texas A&M AgriLife Extension; CDC MMWR; Yellowjackets and Hornets, Vespula and Dolichovespula spp. (Insecta: Hymenoptera: Vespidae); Baldfaced Hornet; Yellowjackets and Other Social Wasps (Pest Notes). 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.
- Inspect grills, mailboxes and light fixtures before use.
- Fill gaps in retaining walls and stacked stone.
- Note where nests appeared and inspect there early next year.
- Move hummingbird feeders away from doors and patios.
- Store pet food indoors and clean bowls after meals.
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
Some paper wasps can tell their nestmates apart by their faces
Questions people ask
Are wasps dangerous to my pets?
your vet if swelling spreads or breathing changes. Dogs often get stung on the face. They can be.
Can I seal the hole wasps are using?
Treat first, then seal once activity stops. They may chew into your house. Sealing traps them inside. No.
Will wasps come back to the same nest next year?
They don't reuse old nests. New queens often pick the same sheltered spots, though.
Can wasps damage my house?
Carpenter bees do more wood damage. Yellowjackets in walls can chew through drywall. Rarely by much.
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.
What's the usual way to get rid of a nest?
For San Antonio homes, a dust or spray into the nest opening at dusk, then removal once activity stops.
What stops people from dealing with wasp nests?
For San Antonio homes, fear of stings, nests that are hard to reach, and not noticing them until they're big.
Are hornets common in San Antonio?
Bald-faced hornets are, in trees and on eaves. Most stings come from yellowjackets, though.
Nearby cities
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Sources (3)
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