The short version
Most rodent jobs in Seattle cost a few hundred dollars up to about $1,500. That usually covers inspection, trapping and sealing. Attic cleanup is extra.
- Most rodent jobs in Seattle cost a few hundred dollars to about $1,500.
- Inspections usually cost $75–$250.
- Sealing the gaps is what keeps rodents out.
- Attic cleanup is usually priced separately.
- Compare what each quote seals, not just the total.
Anyone in Seattle dealing with mice or rats, or hoping to keep them out.
What to look for
Rodents are mostly unseen. You hear them at night and find droppings by morning. A mouse fits through a gap the size of a dime. In Seattle, mice usually start moving indoors in September and October, as nights get colder. Seeing one in daylight usually means there are more.
- 1Shredded paper, fabric, or insulation gathered into a nest.
- 2A musky or ammonia-like smell in closed rooms.
- 3Tracks or tail drag marks in dust or flour.
- 4Live sighting, especially during the day.
- 5Pipe gaps stuffed with debris or looking chewed wider.
- 6Scratching or scurrying sounds in walls or ceilings at night.
Why it’s worth acting soon
- Mice breed fast, every few weeks.
- Droppings and urine contaminate food and insulation.
- Gnawed wiring can be a fire risk.
- Nests and odor get harder to clean the longer they stay.
- Deer mice can carry hantavirus.
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Estimate rodent control cost in Seattle
Adjust for your situation to see a ballpark range.
Estimated range
A rough guide only. Your quote depends on your house and what the inspection finds.
Treatment options and typical costs
Inspection and Entry-Point Mapping
$75–$250
Skipping this step is why so many homeowners buy traps twice. A proper Seattle inspection finds the gap you cannot see from the ground, usually up high or under the deck.
- Time
- 60–90 minutes
- Best for
- Every job; nothing else works without it
Attic and Crawlspace Cleanup and Sanitation
$500–$3,000, higher if insulation is replaced
After the rodents are gone, what they left behind still matters. Cleanup in Seattle attics means removing droppings, nesting material, and urine-soaked insulation, then disinfecting the surfaces underneath.
- Time
- Half day to two days
- Best for
- Heavy contamination; odor, urine-soaked insulation, nesting
Tamper-Resistant Exterior Bait Stations
$100–$300 setup, $40–$80 per service visit
Rodenticides are regulated, and some products are restricted to licensed applicators. Ask which product they use. Ask how they protect pets and wildlife.
- Time
- 30–45 minutes per visit, ongoing
- Best for
- Outdoor rat pressure; ongoing perimeter protection
Follow-Up Monitoring
$50–$150 per visit, or included in a plan
A good follow-up visit is short but thorough. The pro walks the Seattle home's sealed points, checks any exterior stations, and updates you on what they found.
- Time
- 20–40 minutes per visit
- Best for
- Confirming the house stays clear after treatment
Prices are typical published ranges. Ask what’s included before you compare quotes.
Rats can travel plumbing, so a sink or floor drain with a missing strainer is worth fixing; a tight strainer or grate keeps them out.What rodent control costs in Seattle.
- Follow-Up Monitoring: $50–$150 per visit, or included in a plan - Tamper-Resistant Exterior Bait Stations: $100–$300 setup, $40–$80 per service visit - Attic and Crawlspace Cleanup and Sanitation: $500–$3,000, higher if insulation is replaced - Inspection and Entry-Point Mapping: $75–$250 - A typical home in Seattle is worth around $850k. Sealing the gaps protects that, and it's the part that lasts. Crawl-space homes need vents and doors sealed too.
Which rodents live around Seattle.
House mice are the most common rodent in Seattle homes. They're small, curious and breed quickly. Norway rats are the other usual suspect. They burrow along foundations and enter low. Roof rats turn up in parts of Washington. They climb and come in high, through attics and rooflines. Deer mice live around Seattle too, mostly near open land and in sheds or cabins. They can carry hantavirus, so clean up their droppings carefully.
This is what a proper seal looks like: metal mesh fastened with screws and sealed at the edges. Foam or caulk on its own gets chewed through.When they move in.
Small problems grow fast. Spring is breeding season. Check for gaps before then.
How they get into houses here.
A lot of houses around Seattle have crawl spaces, and crawl vents and access doors are the usual way in. Check that vent screens are intact. Make sure the crawl door closes tight. Look for gaps where pipes and wires pass through the floor. Homes from Seattle out to Bellevue and Kirkland share the same weak spots, so the checklist below works across the area. For roof rats, check soffit vents, gable vents and eaves. Trim branches back from the roof.
A year of rodents in Seattle.
- Summer: with highs around 76°F in Seattle, rodents look for water. Fix drips and leaks. - Spring: breeding season. Act on any sign quickly. - Winter: with lows near 37°F in Seattle, check the attic, garage and pantry for droppings. - Fall: mice move indoors as nights cool. Seal gaps in September.
Mice or rats?
- Rub marks: rats leave greasy smudges along walls and beams. - Behavior: mice are curious about new traps. Rats avoid them for days. - Sounds: mice sound light and quick. Rats sound heavier. - Holes: mice chew dime-sized holes. Rats chew holes closer to quarter-sized. - Droppings: mouse droppings are rice-sized. Rat droppings are two or three times bigger.
Sealing small gaps yourself.
- Check your work: daylight through a gap means it isn’t sealed. - Expanding foam: fine on top of mesh, useless on its own. - Door sweeps: close the gap under garage and exterior doors. - Hardware cloth: use quarter-inch mesh over vents and larger holes. - Sealant or mortar: cover the mesh so it stays put. - Steel wool or copper mesh: pack it into small gaps first.
Cleaning up droppings safely.
- Wash your gloved hands, then your hands. - Don’t sweep or vacuum droppings dry. It stirs up dust. - Wipe up with paper towels and bag them. - Spray droppings with a bleach solution, then wait five minutes. - Wear rubber or plastic gloves. - Air the room out for 30 minutes first.
What happens at an inspection.
Photos help. You should come away with a list of entry points. They'll also check the crawl space. Inside, they check the kitchen, garage and attic. They check the foundation, vents, rooflines and utility gaps. The inspector walks the outside first. Most inspections take about an hour.
Rodents in the car.
Clear birdseed and pet food from the garage. Check the air filter box for nesting. Park in a closed garage when you can. Mice and rats nest in engine bays and chew wiring.
Bird feeders and rodents.
Store seed in a metal can with a tight lid. If rodents show up, bring feeders in at night. Use a seed tray and sweep up spills. Spilled seed feeds mice and rats.
Questions to ask before you sign.
- Will you use poison inside? (Ask them not to.) - Is cleanup included, or extra? - What happens if they come back? - How many trap visits are included? - Which gaps will you seal, and with what? - Where are they getting in?
Ways to keep the cost down.
- Compare what each quote seals, not just the price. - Act early, before rodents spread to the attic. - Store food and pet food in sealed bins. - Clear clutter so gaps are easy to reach.
Rodents by the numbers.
National surveys set rough expectations but cannot diagnose one house. In Seattle, what actually matters is a walk-through: where the droppings are, how the rodents are getting in, and how large the colony is. In Seattle, those three findings — species, entry points, and scale — are what a quote should be built on, not a regional average. In Seattle, ask any provider to show you the entry points and the plan before you compare numbers.
What affects the price
- Outdoor pressure from creeks, alleys, or restaurants nearby.
- Sewer line inspection if rats are entering underground.
- Whether sheds, garages or other outbuildings are included.
- Number of entry points found during inspection.
- Local labor rates and licensing costs.
- Emergency or short-notice scheduling.
- Whether insulation must be removed and replaced.
- Age of the home and condition of the foundation.
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What's your biggest concern about rodent control costs?
When to call for help
Attic cleanup is hard to do safely without training. They take a longer, more careful approach. Call right away if you see rats. So is a dead-rodent smell. Droppings in several rooms are another sign. Call if you hear them in the attic or walls.
What you can do yourself
That's where a pro's sealing work pays off. Rooflines, vents and attics are harder. Seal small gaps with steel wool and sealant. Store food in sealed bins. Bait them with peanut butter. Start tonight with snap traps along the walls.
Rodents in Seattle
A typical home in Seattle is worth around $850k, and chewed wiring or soiled insulation can get expensive. In denser parts of Seattle, rats travel along alleys, fences and utility lines, so neighbors often share the problem. Winter lows average around 37°F in Seattle, and that cold is what sends mice looking for a way in. With about 38 inches of rain a year, Seattle gives rodents plenty of water, so food and shelter are what you control.
Local research
Rodents in Seattle, WA: what the public record shows
Before you compare quotes, it helps to know which rodents actually live in Washington, when they are busiest around Seattle, and what the state figures look like. Everything below links to the agency or university page it came from.
Rat litter size
Old World rats are not regulated; killing is unrestricted.
WDFWRat entry hole
Footprint about 1/2 inch long; incisors grow 5 inches a year.
WDFWRodent species recorded in Washington
- House mouse (Mus musculus) — Enters at 1/4 inch; 5-10 litters per year; eats about 200 small meals a night.
- Norway rat (Rattus norvegicus) — Burrowing rat of basements, sewers and ground floors; tail shorter than head plus body.
- Roof rat (Rattus rattus) — Climber of attics and trees in warm and coastal regions; tail longer than head plus body.
- Deer mouse (Peromyscus maniculatus) — Primary U.S. hantavirus carrier; lives throughout Washington and the interior West.
When rodents are busiest around Seattle
Year-round; roof rats in Puget Sound attics.
Rules that apply in Washington
For context, nationally
- 1/4 inch (the width of a pencil) — Smallest gap a mouse can enter. CDC
- 890; 35% fatal; 94% west of the Mississippi — Hantavirus cases reported since 1993 (through 2023). CDC
Sources: Hantavirus; WDFW; CDC; Pest Notes: House Mouse; Pest Notes: Rats. Figures are quoted as the source prints them. How we check our sources
Simple ways to keep rodents away
- Store pet food and birdseed in sealed metal containers.
- Take bird feeders down or use catch trays for spilled seed.
- Install brush or rubber door sweeps on exterior doors.
- Fix leaking hoses, faucets, and irrigation heads.
- Fill gaps around pipes, cables, and AC lines with copper mesh.
- Check crawlspace doors and vents for chewed openings each fall.
A good rodent quote lists the inspection, the number of trapping visits, each opening to be sealed and the material for it, and any cleanup.Did you know?
Male house mice sing ultrasonic songs that humans can't hear.
In Seattle, a rodent's front teeth never stop growing, so it gnaws constantly to keep them worn down.
Questions people ask
Does home size change the price?
Attics and crawl spaces add time too. Bigger houses have more walls and roofline to seal. Yes.
How much does rodent control cost in Seattle?
Most full jobs in Seattle run a few hundred to about $1,500. Attic cleanup costs extra.
What does a rodent inspection cost?
It's worth asking. Some companies credit it toward the job if you go ahead. Usually $75–$250.
Is a quarterly rodent plan worth it?
For a one-time issue, a single sealing job is often enough. Homes near fields or water benefit most. It can be, after repeat problems.
How do I know if I have mice or rats?
Rats also chew larger holes and sound heavier at night. Mouse droppings are about the size of a rice grain. Check the droppings.
Do I need to replace attic insulation?
Ask the inspector to show you before you agree to replacement. Light activity can often be cleaned up. Only if it's heavily soiled or flattened by nesting.
Can I just seal the holes myself?
Rooflines and vents are harder, and that's where a pro helps. Foam alone won't stop them. Use steel wool or copper mesh, then seal over it. Small gaps, yes.
How many homes have a full rodent infestation?
In Seattle, find out up front how many visits are included and what the company does if the rodents come back. homeowners, 14% reported a multiple-rodent infestation over their lifetime, far fewer than the 37% who recalled a single animal. In the National Pest Management Association's (NPMA) September 2022 Harris Poll of more than 1,300 U.S.
Which parts of the U.S. have the most rodent problems?
Census Bureau's 2019 American Housing Survey (AHS), separates the highest and lowest selected large metros for reported rodent signs. Where you live matters enormously: a 15.8-percentage-point gap, calculated from the published figures of the U.S. Older, denser metros in the Northeast report far more.
Are rodents a problem in Seattle?
They're common here, as almost everywhere. House mice cause most problems.
Nearby cities
Related guides
Sources (10)
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 Rodent Exterminator · Updated September 11, 2026 · How we write these guides