I live near the Cedar River. Are rats just part of living here?

The river and its storm drains will always hold some rats, but that does not mean they have to be under your house. Norway rats get in through gaps at ground level, so sealing vents, pipe openings and skirting a quarter inch and up keeps them outside. Bait stations around the exterior handle the pressure from the riverbank, and follow-up visits confirm nothing is getting back in.

My Highlands house has a dirt crawl space. Is that a pest problem?

It can be. Bare soil puts moisture into the floor joists, which draws carpenter ants, and loose insulation gives rodents a warm nest. Laying a 6-mil vapor barrier, pulling any contaminated insulation and screening the vents fixes both problems at once. We look at it on the first visit and tell you plainly whether it needs work now or can wait.

Why do I get ants every spring even though the house is newer?

Newer homes in places like Benson Hill often have bark mulch and irrigated beds right against the foundation, which is good ant habitat. Most spring kitchen trails are odorous house ants, and spraying them tends to split the colony. We bait them so the colony dies back, then look for the trail's entry point, often a window frame or utility line.

How quickly can you get to Renton?

Someone will be at your door within 48 hours. Renton is 75 min south of Lake Stevens HQ, and you get a text about 30 minutes before the truck arrives. Stinging-insect calls get priority on the schedule.

Is the treatment safe around kids and pets?

Yes. We use products rated for occupied homes and apply them where pests travel, not across your living space. The technician walks you through what goes down and where before anything is treated. If you keep bees, chickens or a vegetable garden, tell us and we work around them.

South King · 75 min south of Lake Stevens HQ

Pest control in
Renton, WA.

Between Boeing, the retail core, and the Cedar River running through town, Renton has a rat problem that's worth taking seriously.

★ 5.0 from 64 Google reviews
WSDA license #112338
Out within 48 hours

Call now (425) 332-6566

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Step 1 of 3

Pest control in Renton, WA

Renton sits where the Cedar River meets the south end of Lake Washington, with May Creek, Honey Creek and Springbrook Creek cutting through the hills and the valley floor. Water that close to so many streets gives rats a highway and gives carpenter ants damp wood to chew. Most of the work here starts low, at the foundation and in the crawl space.

That is what makes pest control in Renton different from the Eastside cities to the north. Much of the housing on the plateaus went up fast in the 1940s and 1950s, a lot of it on crawl spaces that have had decades to settle, sag and open up. The valley side is flatter, wetter and closer to commercial buildings. The same pest can need a different plan depending on which of the two you live on.

Close-up of a brown rat on a concrete ledge outside a home, Renton, WA

Rodent Control in Renton

Norway rats along Renton's Cedar River and creek corridors

The Cedar River, the Lake Washington shoreline and the storm lines that drain toward them give Norway rats cover and water from the Highlands all the way down to downtown. Norway rats burrow. Instead of dropping in from a roofline, they dig along foundations and come up into crawl spaces through torn vent screens, gaps around pipes and cracked skirting. Neighborhoods near the river and the creek ravines tend to feel it first.

Rodent control in Renton starts at ground level. We seal every gap a quarter inch and up with hardware cloth, sheet metal, mortar or copper mesh, then set tamper-resistant bait stations outside and snap traps inside, and come back to check and clear them. Watch for fresh burrow holes beside the foundation, droppings on the vapor barrier, and scratching under the floor at night, especially once fall rains push rats out of the lower ground.

More on our mouse control Guide: Mice or Rats in the Attic? What the Noises Mean and What to Do Next

Close-up of a black ant on splintered, Renton, WA

Ant Control in Renton

Carpenter ants in Renton's older framing and wooded lots

Big conifers and alders line the May Creek and Honey Creek greenbelts, and Kennydale and the Renton Hill slopes have plenty of mature trees too. Carpenter ants nest in stumps and dead limbs, then follow branches and wet siding into the house. Older homes with a leaking window, a soft sill plate or a deck ledger that stays damp give them a second nest right in the wall.

We identify the ant before treating anything. Carpenter ants get the parent nest and the satellite nests treated, which often means one nest in a backyard tree and another in the house. Odorous house ants, the small sugar ants that trail across kitchen counters in spring, get bait, not spray, so the workers carry it back to the colony. Look for large black ants indoors in March and April, and small piles of sawdust-like frass under trim or in a basement corner.

More on our ant control Guide: How to Get Rid of Ants (and Why the Spray Under Your Sink Makes It Worse)

An open crawl space access vent with the door removed at the base of a home, Renton, WA

Crawl Space & Vapor Barrier in Renton

Crawl space repair under Renton's wartime and mid-century homes

The Renton Highlands started as World War II housing for Boeing workers, and a lot of the homes built there and on the surrounding plateau from the 1940s through the 1960s sit on shallow crawl spaces. Many still have the original thin plastic, or none, and insulation that has fallen off the joists. Moisture from the soil rises into the floor system, and rodents nest in what is left of the insulation.

We haul out the old barrier and any contaminated insulation, rodent-proof the vents and gaps, and lay a new 6-mil vapor barrier across the ground. That cuts the damp that draws carpenter ants and makes it much easier to spot new rodent activity on the next check. If your floors feel cold, a musty smell comes up through the heat registers, or you see droppings when you open the access hatch, the crawl space is due.

More on our vapor barrier replacement Guide: Why Rats Get Into Snohomish County Homes Every Fall

From the call to the follow-up

Hiring a Renton exterminator

When you call us as your Renton exterminator, we set a visit inside 48 hours and text you about 30 minutes before the truck pulls up. The first stop is usually outside: the foundation line, the vents, the downspouts and wherever the yard runs toward a creek or greenbelt. Then we go into the crawl space or attic and show you what we found. Treatment and sealing happen the same day when we can, and if the problem comes back inside the warranty, the re-treatment costs you nothing.

Rating: 5.0 stars, 64 Google reviews
Licensed: WSDA Commercial Applicator #112338
Response: Someone out within 48 hours
Warranty: Re-treatments at no charge

What changes the job here

Renton homes, from Highlands ramblers to Benson Hill subdivisions

The housing stock splits into a few clear eras. The Highlands and parts of Renton Hill are full of small 1940s and 1950s homes, many rebuilt or added onto, almost all on crawl spaces. Kennydale mixes older lakeside houses with newer infill on steep lots, and many have daylight basements where the hill drops toward the lake. Benson Hill and Talbot Hill lean toward 1960s through 1990s subdivisions with attached garages and bark-mulch beds against the siding.

Each era changes the visit. Older crawl-space homes need the exclusion work done from underneath. Daylight basements open a second ground-level wall that needs sealing. Newer subdivisions tend to have tighter framing, but the mulch beds, sprinkler lines and shared fences give ants an easy path from one yard to the next. Townhomes and apartments near The Landing and downtown usually call for work on the whole building rather than a single unit.

Across Renton

Renton neighborhoods and what they deal with

Renton Highlands: Wartime and mid-century homes on aging crawl spaces, with the Honey Creek ravine close by, make rodent exclusion and crawl space repair the main jobs here.
Kennydale: Steep lots above Lake Washington and the May Creek greenbelt bring carpenter ants from the trees and rats up from the shoreline.
Downtown and the Cedar River: Older homes and businesses packed along the river and its trail give Norway rats cover, water and food within a few blocks.
Talbot Hill: The wooded slope above the valley puts older homes next to tree cover, so carpenter ants and spiders are the usual calls.
Benson Hill: Newer subdivisions with bark beds and sprinkler-fed lawns see odorous house ants in spring and yellowjackets in the ground by late summer.

Through the year

The Renton pest year, season by season

Spring: Carpenter ant swarmers come out of damp framing near the creek greenbelts in March and April, and sugar ants start trailing into kitchens once the rain lets up.
Summer: Yellowjackets build in eaves and lawn holes on the hills, and the wetter valley ground near Springbrook Creek keeps mosquitoes around into August.
Fall: When the Cedar River rises with the first heavy rains, Norway rats leave the lower ground and start working into crawl spaces.
Winter: This is the right time to replace a failed crawl space barrier and seal vents, before rodents settle in for the rest of the wet season.

Questions, answered

Pest control in Renton, the common questions.

I live near the Cedar River. Are rats just part of living here?: The river and its storm drains will always hold some rats, but that does not mean they have to be under your house. Norway rats get in through gaps at ground level, so sealing vents, pipe openings and skirting a quarter inch and up keeps them outside. Bait stations around the exterior handle the pressure from the riverbank, and follow-up visits confirm nothing is getting back in.
My Highlands house has a dirt crawl space. Is that a pest problem?: It can be. Bare soil puts moisture into the floor joists, which draws carpenter ants, and loose insulation gives rodents a warm nest. Laying a 6-mil vapor barrier, pulling any contaminated insulation and screening the vents fixes both problems at once. We look at it on the first visit and tell you plainly whether it needs work now or can wait.
Why do I get ants every spring even though the house is newer?: Newer homes in places like Benson Hill often have bark mulch and irrigated beds right against the foundation, which is good ant habitat. Most spring kitchen trails are odorous house ants, and spraying them tends to split the colony. We bait them so the colony dies back, then look for the trail's entry point, often a window frame or utility line.
How quickly can you get to Renton?: Someone will be at your door within 48 hours. Renton is 75 min south of Lake Stevens HQ, and you get a text about 30 minutes before the truck arrives. Stinging-insect calls get priority on the schedule.
Is the treatment safe around kids and pets?: Yes. We use products rated for occupied homes and apply them where pests travel, not across your living space. The technician walks you through what goes down and where before anything is treated. If you keep bees, chickens or a vegetable garden, tell us and we work around them.

Everything else we handle in Renton

wasp nest removal spider treatment backyard mosquito treatment German cockroach treatment commercial pest control

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Our core markets each have a dedicated page: Lake Stevens exterminator , rodent control in Lynnwood , Edmonds pest control , pest control in Woodinville , and Everett exterminator .

Renton, WA

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Pest control in Renton, WA.