Breeding site removal
Draining, covering or removing the water mosquitoes breed in. This is the most durable step and often the cheapest. Small changes, such as clearing a gutter, can cut numbers on a whole property.
Serving King County
Mosquito Control in Seattle
Yard mosquito work focused on standing water and shady resting places, handled as a nuisance problem and not an alarm.
- Phones answered 24/7
- Damp wood and crawl-space pests
- Price confirmed before treatment
Get a fast quote
Fastest: call (855) 974-4733. Or send this and we call you back.
Mosquito Control
Mosquito Control: what it covers
Quick answer
Mosquito control in Seattle starts with the places mosquitoes breed, any standing water, and the shady vegetation where adults rest. Treatment is aimed at those spots. Washington's Department of Health listed no West Nile positive mosquito samples for King County in 2025, so this is nuisance work. Seattle Pest Control connects King County callers with an independent local company.
Mosquitoes in the Puget Sound area are mostly a summer nuisance, and this page treats them that way. The Washington State Department of Health's 2025 West Nile virus summary, as we read it, listed no positive mosquito samples for King County, against 48 statewide, 42 of them in Yakima County. It also listed one King County detection in a horse or other mammal and one human case, the human case likely exposed outside the state. Surveillance is limited, so zero means none reported and not none present. Nothing here suggests an alarm, and nothing here says there is no risk.
What most callers want is simpler: an evening on the deck without being bitten. Mosquitoes need standing water to breed and shade to rest, and a yard with a clogged gutter, a saucer under a planter or a neglected birdbath may be supplying both. Seattle Pest Control is a call line, answered 24/7, that connects you with an independent local pest-control company, and a same-day visit is offered only when a technician is free. No Seattle-area mosquito district is cited on this page.
- Service area
- Seattle & King County
- Availability
- Phones answered 24/7
- Phone
- (855) 974-4733
Is West Nile virus a concern in Seattle?
The Washington Department of Health's 2025 table listed no West Nile positive mosquito samples for King County, with most positives in Yakima County, though surveillance is limited. One King County horse or other mammal detection and one probable out-of-state human exposure were listed. Take sensible precautions, and do not treat this as an alarm.
Washington's cases cluster east of the Cascades, based on the table we read, and that is a pattern from one year. Zero positives means none reported; it does not prove there is no risk, and the picture can change from year to year.
If you have symptoms such as a high fever or a severe headache after mosquito exposure, contact a doctor. The state health department is the place for current information.
Where do mosquitoes breed around a house?
In any standing water that lasts several days: clogged gutters, buckets, saucers under planters, birdbaths, tarps, tires and low spots in a lawn. A bottle cap of water can be enough. Emptying, flipping or covering containers weekly is the most reliable control, because it breaks the cycle before adults emerge.
Walk the property after a rain and look for anything holding water. Roof gutters that sag or are packed with leaves are a leading culprit, because they hold water for weeks.
Rain barrels should have a tight screen. Ponds can hold fish that eat larvae. If you are unsure whether a feature is a problem, ask the technician.
- Clear gutters and downspouts
- Empty saucers and buckets weekly
- Change birdbath water often
- Screen rain barrels
- Fill or drain low spots
Do foggers and citronella work?
Backyard foggers give a short break, and citronella candles reduce bites only nearby and briefly. Removing standing water and treating resting areas have longer effects. Fans on a deck can help too, because mosquitoes are weak fliers. No source here supports a single product as a dependable fix.
Beware of devices with big claims. The core of mosquito control is simple and low-tech: no water, no larvae.
For personal protection, repellents used according to their label and long sleeves at dusk work better than yard gadgets.
When is mosquito season in the Seattle area?
There is no sourced local calendar. Most people notice mosquitoes in the warm months, and a wet spring followed by warm weather often means more. Treat that as general experience. The best habit is to check for standing water whenever it rains and the temperature rises.
Summers in the area are comparatively dry, which tends to limit breeding in open ground but not in gutters, containers and shaded corners. Irrigation and leaks add water in dry months.
If mosquitoes are biting in cool weather, look for a nearby sheltered source such as a basement sump or a crawl space with standing water.
Warning signs
Signs you need mosquito control
Use repellents and any yard products according to their labels, keep children and pets out of treated areas until dry or for the time the technician states, and never pour pesticides into water that drains to a stream or storm drain. Seek medical care for a high fever or severe headache after bites.
- Mosquitoes biting at dusk or dawn on a deck, patio or path
- Mosquitoes rising from shrubs, ivy or tall grass when disturbed
- Water that stays in a gutter, a bucket, a tarp, a tire, a planter saucer or a low spot for more than a few days
- Wriggling larvae visible in standing water, often small and moving in a jerking way
- Bites indoors in a room with open windows or a torn screen
- A damp, shaded corner of the yard with thick vegetation
- Increased mosquito activity after a spell of rain followed by warm weather
- Neighbors reporting mosquitoes on the same street, which can mean a shared breeding site
Our process
How our mosquito control visit works
Describe when and where
Say what time of day the mosquitoes are worst, which part of the yard and whether neighbors have them. A same-day visit is offered only when a technician is free, and no arrival time is promised.
Walk the yard for breeding water
The technician looks for anything that holds water: gutters, buckets, saucers, tarps, birdbaths, clogged drains and low spots. Removing or draining these is the first step, and many cost nothing.
Find the resting places
Adult mosquitoes rest in shaded vegetation, under decks and along fences. These spots are noted for targeted treatment.
Explain the options
You hear what can be done: dumping water, treating water that cannot be drained, treating resting areas, and fixing screens. You can accept some and decline others.
Agree the price, then treat
The price is confirmed before work. Products are used according to their labels, away from edible plants and water features where required, and you are told when children and pets can return to the yard.
Plan for the season
Mosquito pressure rises and falls with weather. The technician may recommend repeat visits through the warm months, or just the single visit, depending on the yard and the nuisance.
Options
Types and options for mosquito control
Larvicide for water that stays
For ponds, rain barrels or low spots that cannot be drained, a labelled larvicide may be used according to its directions. The technician explains what is safe near fish, birds and plants.
Adult mosquito treatment
A targeted application to shaded resting places, applied to vegetation rather than open air, reduces biting for a period. Weather and wind affect results, and no length of effect is promised.
Screens and entry points
Torn window screens, gaps around doors and open vents let mosquitoes inside. Repairing them is a low-cost fix. See general pest control for a whole-property look.
Cost
How much does mosquito control cost in Seattle?
No outside price for mosquito control is printed here. These are the factors that move a quote.
| Job | Typical range | What it includes |
|---|---|---|
| Size of the yard | Scales with the space | A small townhome patio and a lakeside lot with dense planting are different jobs |
| Amount of standing water | Varies | Draining and dumping take time but cost little; water that cannot be drained may need treatment |
| Dense vegetation and shade | Affects time | More resting places mean more to treat |
| Number of visits | One or several | Recurring visits are an option through warm months and are priced when you book |
| Property features | Quoted separately | Ponds, fountains and vegetable gardens may limit what can be used |
Your exact price is confirmed on site before work starts. For how quotes are built, see the Seattle cost guide.
Need mosquito control today?
Call any hour and explain what is going on. You get a clear price before any work starts.
King County
Why mosquito control is different in Puget Sound
Lakes and wet ground shape the local picture. Properties along Lake Washington, Lake Sammamish, the Sammamish River and creek ravines in Kenmore, Redmond, Woodinville and Bothell sit near water and shade, which suits mosquitoes at rest. A yard that backs a wetland or a greenbelt may see more mosquitoes than one on an open street.
Dry summers help but do not remove the problem. After the wet season ends, standing water shrinks, yet a clogged gutter, a saucer or a sump can stay wet. In Seattle and Bellevue, balconies and rooftop planters in apartments can hold small pools of water as well.
Across Puget Sound, Kitsap County's wooded shoreline homes have shade and moisture. We cite no mosquito abatement district for the area, so ask your city or county if you want to know about public programs.
Related
Related services
General Pest Control
One visit to name the pest and find the way in, planned around Puget Sound's wet season and its spring ant swarms.
Yellowjacket and Wasp Removal
Late-summer nests in the ground, walls and eaves are removed by a technician, after the wasp is identified.
Wet Wood and Moisture Pest Prevention
A visit that maps leaks, ventilation and wood-to-soil contact so ants and termites lose the damp wood they look for.
Where we work
Mosquito Control across King County
- Mosquito Control in Seattle
- Mosquito Control in Medina
- Mosquito Control in Mercer Island
- Mosquito Control in Bellevue
- Mosquito Control in Kirkland
- Mosquito Control in Kenmore
- Mosquito Control in Renton
- Mosquito Control in Redmond
- Mosquito Control in Mountlake Terrace
- Mosquito Control in Sammamish
- Mosquito Control in Bothell
- Mosquito Control in Edmonds
- Mosquito Control in Woodinville
- Mosquito Control in Shoreline
- Mosquito Control in Lake Forest Park
- Mosquito Control in Burien
- Mosquito Control in SeaTac
- Mosquito Control in Tukwila
- Mosquito Control in Des Moines
- Mosquito Control in Lynnwood
Not sure if you're covered? Check your ZIP code.
Guides
Read before you book
Yellowjackets and Wasps in the Seattle Area: Why Late Summer Is the Risky Window
Yellowjacket colonies start from one spring queen and peak near the end of summer; WSU says August to September is when they are most troublesome, and German yellowjacket colonies are largest from October to early November.
FAQ
Mosquito Control FAQs
Will you remove all mosquitoes?
No. Mosquitoes fly in from neighboring properties. Treatment and water control reduce numbers, but no outcome is promised.
Are treatments safe for my vegetable garden?
The technician follows label restrictions near edible plants and tells you what to avoid. Mention the garden, bees and pets when you book.
Should I worry about West Nile virus?
Washington's 2025 table listed no positive mosquito samples for King County, but surveillance is limited. Take ordinary precautions and see a doctor for concerning symptoms.
Why are mosquitoes worse near my deck?
Shaded corners, dense planting and damp ground attract resting adults. A fan, trimming vegetation and treating the resting places can help.
Can I do most of this myself?
Yes. Dumping water, clearing gutters and fixing screens are within reach. A technician helps with persistent problems and resting-place treatment.
Do bats or fish help?
Some pond fish eat larvae. We cite no source for bats being a dependable control.