The short version
Around Charleston, mosquito season runs from about May through September. Start by dumping standing water every week. A barrier spray every few weeks adds steady relief.
- Dump standing water every week.
- Daytime biters are usually tiger mosquitoes.
- Barrier sprays last about three to four weeks.
- Larvicide handles water you can’t drain.
- Use repellent with DEET, picaridin or IR3535.
Homeowners and renters in Charleston who want their yard back.
What to look for
In summer heat, eggs become biting adults in about a week. Mosquitoes breed in standing water, even a bottle cap's worth. Often the source is a neighbor's yard or a storm drain.
- 1Welts on ankles and calves after yardwork.
- 2Being bitten in full daylight, not just evening.
- 3Ornamental pond with no fish or pump.
- 4Wriggling larvae in birdbaths, buckets, or saucers.
- 5Swarms rising from shrubs when you brush past.
- 6Tarps, toys, or tires holding rainwater.
Why it’s worth acting soon
- Each new generation is bigger than the last.
- Bites can spread West Nile virus.
- Itchy welts, especially for kids.
- Heartworm risk for dogs.
bite, to get protein for their eggsOnly female mosquitoesUS CDC in standing water, from a bottle cap to a pondMosquitoes breedUS EPA West Nile virus is the most common mosquito-borne disease in the U.S.Mosquito diseasesUS CDC Treatment options and typical costs
Property Inspection for Breeding Sites
$0–$150 (often bundled with a first treatment)
A good job starts with a walk of the whole yard. The tech looks for water that sits for days. Gutters, plant saucers, tarps, and low spots get checked first.
- Time
- 30–60 minutes
- Best for
- Every yard; finds where mosquitoes actually breed
Barrier (Residual) Yard Treatment
$75–$200 per visit; $350–$900 per season
Barrier spray is the workhorse of mosquito control in Charleston, but it is only as good as the coverage of vegetation. Open lawns hold few adults; hedges and ivy hold thousands.
- Time
- 20–45 minutes per visit, repeated every 3–4 weeks
- Best for
- Shaded yards with shrubs, ivy, and dense landscaping
Source Reduction and Larviciding
$75–$150 per visit
This visit often doubles as homeowner coaching, since most breeding sites on a Charleston lot can be eliminated by hand. A pro points them out so they stay gone.
- Time
- 45–90 minutes
- Best for
- Yards with standing water, clogged gutters, ponds, or drains
Monitoring and Seasonal Plans
$50–$150 per follow-up visit; $350–$900 per season bundled
Between visits in Charleston, a good pro uses traps or landing counts to check the treatment is still working. Numbers climbing early means a missed breeding site.
- Time
- 15–30 minutes per check; season runs spring through first frost
- Best for
- Anyone who wants the yard usable all summer
Prices are typical published ranges. Ask what’s included before you compare quotes.
Leaf-clogged gutters and downspouts hold water out of sight. Clearing them in fall means fewer places to breed in spring.Which mosquitoes bite around Charleston.
They're the main West Nile carriers. They breed in storm drains. House mosquitoes (Culex) bite from dusk into the night. They breed in small containers. They're black-and-white and bite by day. Asian tiger mosquitoes are common around Charleston.
Local mosquitoes conditions in Charleston.
An inspection in Charleston usually starts outside and works inward, checking the foundation, gaps around doors and windows, and any moisture or clutter near the structure first. Around Charleston, the area is mostly urban, so mosquitoes 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. Charleston sits in a humid subtropical climate, and that sets the pace for mosquito activity here: late spring through early fall; year-round in the deep south. A provider who works Charleston and West Virginia 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. Knowing Charleston'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.
Mosquitoes that bite indoors usually slip in through gaps around doors or torn window screens.Mosquito season in Charleston.
Numbers usually peak in July and August. West Nile cases usually peak in late summer.
A year of mosquitoes in Charleston.
- Spring: dump water and clean gutters before May. - Winter: fix drainage and store containers upside down. - Fall: activity fades with cooler nights. - Summer: peak season in Charleston, especially July and August.
The weekly water walk.
- Saucers and pots: empty them or add sand. - Gutters: clear leaves so water drains. - Tree holes: fill them with sand. - AC drip lines and downspouts: make sure water drains away. - Pet bowls: refresh daily. - Birdbaths: change the water twice a week. - Tarps and covers: pull them tight so water runs off. - Toys and buckets: store them upside down.
Avoiding bites.
- Clothing: long sleeves and pants help at dusk. - Repellent: DEET, picaridin, IR3535 or oil of lemon eucalyptus. - Timing: tiger mosquitoes bite by day; house mosquitoes at dusk. - Screens: repair holes in window and door screens. - Fans: a patio fan keeps weak-flying mosquitoes away.
Low-cost ways to cut mosquitoes.
- Mosquito fish: they eat larvae in ornamental ponds. - Mosquito dunks: Bti tablets kill larvae in rain barrels and ponds. - Lights: yellow bug lights attract fewer insects to the porch. - Trimming: thin out dense shrubs and tall grass. - Pumps and fountains: moving water breeds far fewer mosquitoes.
Mosquito or look-alike?
- Non-biting midges: swarm near water at dusk. Harmless, just annoying. - Crane flies: look like giant mosquitoes. They don’t bite. - Mosquitoes: slim, long legs, and a needle-like mouth. - No-see-ums: tiny biting gnats near marshes. Screens need a finer mesh.
When a bite needs a doctor.
Spreading swelling or an infected-looking bite needs a check too. See a doctor for high fever, stiff neck or confusion. About one in five get a fever, headache or body aches. Most people infected with West Nile virus never feel sick. Most bites just itch for a few days.
Protecting your pets.
Talk to your vet about year-round prevention. Heartworm reaches dogs through mosquito bites, and cats can get it as well; in Charleston the main exposure runs July through September. Refresh pet water bowls daily, dump saucers after Charleston's summer storms, and keep animals inside until a yard treatment dries.
What a treatment visit looks like.
They dump or treat standing water. The tech walks the yard first. A visit usually takes 20 to 45 minutes. Most plans repeat every three to four weeks. Then they spray shady shrubs, where adults rest. Larvicide goes in water you can't drain.
Rain barrels and ponds.
- Ponds: fish and moving water keep larvae down. - Barrels: cover openings with fine mesh. - Pool covers: drain standing water after rain. - Tarps: shake out any that hold rainwater. - Gutters: clear them so water drains away. - Bird baths: change the water every few days.
Questions to ask before you sign.
- How often will you come? - What product will you spray? - When can kids and pets go back outside? - How do you protect bees and flowers? - What happens if bites come back between visits? - Do you treat standing water too?
What affects the price
- Number of visits the local season needs.
- Standing water requiring larvicide.
- Gutter cleaning or drainage fixes bundled in.
- One-time visit versus a seasonal plan.
- Local labor rates and licensing costs.
- Amount of shade and dense vegetation.
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What's your biggest concern about mosquitoes?
When to call for help
early in the season, before the first big wave. Ponds, drains and dense shrubs are hard to handle yourself. Call if bites still keep you indoors. Dumping water should come first.
What you can do yourself
The biggest win is free: dump standing water every week. Use repellent and run a fan on the patio. A pro adds larvicide for water you can't drain. They also spray where adults rest, every few weeks.
Mosquitoes in Charleston
Charleston has a humid subtropical climate, and mosquitoes activity here tends to pick up late spring through early fall; year-round in the deep south. Around Charleston, most of the housing is urban, so the usual entry points, moisture spots, and sheltered areas near the structure are what an inspection checks first. Around Charleston, take a minute to note where you have seen activity and when it appears, so the inspection is faster and the quote more accurate. A local provider who knows Charleston and West Virginia can point out the specific conditions that matter most here before you commit to a plan. Charleston gets about 45 inches of rain a year, so containers and low spots refill constantly through the season. Summer highs around 86°F in Charleston speed up the life cycle, and average humidity near 70% keeps adults active. In denser parts of Charleston, storm drains, catch basins and gutters are big breeding spots.
Local research
Mosquitoes in Charleston, WV: what the public record shows
Before you compare quotes, it helps to know which mosquitoes actually live in West Virginia, when they are busiest around Charleston, and what the state figures look like. Everything below links to the agency or university page it came from.
West Nile neuroinvasive disease cases, 2024
Neuroinvasive counts are the most reliable state comparison because nearly all severe cases are diagnosed and reported.
CDCWhen mosquitoes are busiest around Charleston
CDC: West Nile transmission June through October, peaking late August to early September. Illinois found its first positive mosquito batch of 2025 on May 9, so larval control should start in May.
For context, nationally
- 1,808 — West Nile virus disease cases reported, 2024. CDC
- 1,347 (75% of cases); 173 deaths — West Nile neuroinvasive disease cases, 2024. CDC
Sources: CDC. Figures are quoted as the source prints them. How we check our sources
Simple ways to keep mosquitoes away
- Add fish or a pump to ornamental ponds.
- Flush tree holes or fill them with sand.
- Dump and scrub birdbaths every week.
- Store buckets, wheelbarrows, and toys upside down.
- Replace corrugated downspout extensions with smooth pipe.
- Run a fan on the patio at dusk.
When you compare quotes, look at the season total, how many visits it covers and what happens if the bites come back.Did you know?
Some species' eggs survive dry for months
Tiger mosquitoes arrived in used tires in the 1980s
Questions people ask
Is mosquito spraying safe for pets, kids, and bees?
Keep kids and pets inside until it dries. Ask them to avoid flowers. Applied by the label, it's considered low risk once dry.
Will mosquito treatment kill bees and butterflies?
Ask them to skip blooming plants. Spraying when bees rest helps too. It can if spray hits flowers.
When should mosquito treatments start each year?
Before the first big wave. Around Charleston, the season runs from about May through September, so start a few weeks before.
What are In2Care stations and do they work?
Mosquitoes visit, then carry larvicide to other water. They work best against container breeders like tiger mosquitoes. They're small water traps.
Can I get rid of mosquitoes permanently?
They fly in from nearby. Removing water and spraying resting spots cuts them down a lot. Not completely.
How often does mosquito treatment need to be redone?
Around Charleston, mosquito control works by removing standing water, treating the water that cannot be drained, and applying barrier treatments where adults rest. Around Charleston, because they keep breeding through the season, an ongoing plan usually works best.
When is mosquito season in Charleston?
It runs from about May through September. Daytime biters are tiger mosquitoes; evening biters are usually house mosquitoes.
Do mosquitoes in Charleston carry West Nile?
Cases usually peak in late summer. Repellent and dumping standing water are your best protection. They can. West Nile is found in every lower-48 state, West Virginia included.
Nearby cities
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Sources (11)
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 Mosquito Exterminator · Updated September 11, 2026 · How we write these guides