Pure Guard Pest Control PURE GUARD PEST CONTROL

Field notes

Pest control,
explained.

We write these to answer the questions we hear on calls: what's actually crawling around homes in Lake Stevens and the rest of Snohomish County, and what to do about it.

Rodent pictured for a home mouse and rat prevention guide
Rodents September 9, 2026

Keeping Mice Out of Your Garage Before Fall

A practical garage inspection for Snohomish County homeowners: door gaps, stored food, clutter, and the signs that call for a rodent inspection.

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An open crawl space access vent at the base of a house with the cover removed, showing the dark opening underneath where rats get in
Crawl Space August 22, 2026

Signs of Rats in Your Crawl Space (and What Each One Means)

An ammonia smell at a floor register is one of the first signs of rats in crawl space insulation. What to check, and when the vapor barrier has to come out.

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Pure Guard technician servicing a tamper-resistant rodent bait station outside a Snohomish County, WA home
Pest Control July 30, 2026

How Much Does Pest Control Cost in Snohomish County?

What actually moves the price of pest control, why nobody can quote you honestly over the phone without asking questions, and the ranges we see across Lake Stevens, Lynnwood, Edmonds and Woodinville.

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Pure Guard technician treating eaves and a light fixture where wasps and yellow jackets nest in Edmonds, WA
Wasps & Bees July 14, 2026

How to Remove a Wasp Nest (and the Ones You Should Leave Alone)

Timing, which nests are safe to handle yourself, why an old nest in winter is not worth touching, and the one situation where a can of spray makes things considerably worse.

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Pure Guard technician spraying a perimeter barrier along a home's foundation for ant control in Lake Stevens, WA
Ants June 25, 2026

How to Get Rid of Ants (and Why the Spray Under Your Sink Makes It Worse)

Most ant problems in the Pacific Northwest come down to four species, and the fix is different for each. What works, what backfires, and when the trail on your counter means something is wet inside a wall.

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Close-up of a mosquito perched on a leaf
Mosquitoes June 14, 2026

Why You Have Mosquitoes in the Pacific Northwest (and How to Cut Them Down)

We're supposed to be too cool and wet for mosquitoes, so why is your backyard unusable in July? Here's what's breeding them and how to take the yard back.

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A house spider in its web in the corner of a wooden structure
Spiders June 13, 2026

Spiders in Pacific Northwest Homes: Which Ones Actually Matter

Hobo spider, giant house spider, or something harmless? Here's what's really crawling around PNW homes, whether it's dangerous, and how to keep them out.

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Close-up macro photo of a black carpenter ant on weathered wood
Ants June 10, 2026

Carpenter Ants vs. Sugar Ants: How to Tell What's in Your Kitchen

The two ants we get the most calls about in Lake Stevens look similar but mean very different things. Here's how to tell them apart and what each one is really after.

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Paper wasps on an open umbrella-shaped paper nest against a wall
Wasps & Bees June 3, 2026

Yellow Jackets, Paper Wasps, or Honeybees? Know Before You Spray

Not everything buzzing around your eaves should be treated the same way. Here's how to tell wasps from honeybees, and why one of them you should leave alone.

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Macro close-up of a fly resting on a weathered surface
Flies May 28, 2026

Cluster Flies, Fruit Flies, Drain Flies: Why They Keep Coming Back

Three completely different flies, three completely different fixes. Here's how to tell which one you've got and why swatting them never solves it.

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Close-up of a wild brown rat (Norway rat) foraging on the ground
Rodents May 20, 2026

Why Rats Get Into Snohomish County Homes Every Fall

When the weather turns, rats start looking for somewhere warm and dry. Here's how they get into Lake Stevens homes, and how to close the door before they do.

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Empty commercial kitchen with stainless steel surfaces and subway tile
Commercial May 12, 2026

What Health Inspectors Look For: Pest Control for PNW Restaurants

In food service, a pest sighting isn't just embarrassing, it's a health-code problem. Here's what inspectors check and what a real commercial pest program covers.

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Got something you can't identify?

Send us a photo and we'll tell you what it is and whether it's worth treating. If it is, we'll have someone out within 48 hours.

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(425) 332-6566

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