pest-control

How Much Does Pest Control Cost in Portland, OR? (2026)

Pest control in Portland, OR costs $150 to $350 per visit and $40 to $75 a month on a plan. Rat, ant, spider, wasp, and bed bug prices, plus how to pick a company.

How Much Does Pest Control Cost in Portland, OR? (2026)

Rats are the pest Portland pays the most to deal with, and the reason is the city itself. Mature trees, older homes with crawl spaces, backyard chickens, compost bins, and a mild wet climate give Norway rats and roof rats everything they need. A rat program in Portland runs $350 to $800 for the initial visit and $60 to $120 per month for ongoing service, and full exclusion on a 1920s bungalow in Southeast can run $1,500 to $4,000.

Ants are the most frequent call, and the cheapest. Odorous house ants show up in kitchens across the city every spring and fall, and a treatment runs $175 to $325, while spiders, wasps, carpenter ants, and the occasional bed bug problem sit between those two on price. This guide covers what each costs in Portland right now, why the climate changes the price, and how quarterly plans compare with paying per visit.

Rats and Mice in Portland Homes

Roof rats travel along fence lines, tree limbs, and utility wires and enter attics through gaps at the roofline. Norway rats burrow under decks, sheds, and foundations and come in through crawl space vents and gaps around pipes. Both are common from St. Johns to Sellwood, and both are worse near parks, rail lines, and restaurant rows like Division and Alberta.

An initial rat service runs $350 to $800 and includes an inspection, bait stations or traps, and sealing the obvious entry points. Monthly follow-up runs $60 to $120. Most companies recommend at least three months, because a rat population takes time to work through.

Exclusion is the permanent fix and the expensive one. Sealing every gap larger than a half inch, screening crawl space vents with hardware cloth, and closing gaps at the roofline on a Portland bungalow runs $1,500 to $4,000. Homes with brick foundations and multiple additions, common in Irvington and Laurelhurst, sit at the top.

Mice are cheaper. An initial mouse treatment runs $200 to $400 with follow-ups at $75 to $125. Crawl space cleanup after a rodent problem, which involves removing contaminated insulation and vapor barrier, is a separate job at $1,500 to $5,000 depending on the size of the space.

Ants: The Most Common Call in the City

Odorous house ants are the small dark ants that show up in kitchens and bathrooms in March and again in September. They nest in wall voids, under slabs, and in moist soil, and they move colonies when it rains. A treatment runs $175 to $325 and usually involves non-repellent products around the exterior plus baiting inside.

One treatment often holds for a season. Homes near wetlands, creeks, or heavy landscaping, which covers much of Southwest Portland and the West Hills, tend to need two or three visits a year, and most companies push a quarterly plan for that reason.

Carpenter ants are the more serious ant problem. They tunnel into damp wood, and Portland's wet winters keep a lot of sill plates, deck posts, and window frames damp enough to attract them. A carpenter ant treatment runs $250 to $550 and includes locating the nest, which is often in a wall near a leak or in a rotting porch column.

Moisture ants and pavement ants round out the list at $150 to $300 per treatment. The presence of moisture ants is a sign of rotting wood, and the pest bill is usually the smaller cost.

Spiders, Wasps, and Seasonal Pests

Spiders are a constant complaint in Portland, and most of them are harmless. Giant house spiders and hobo spiders show up in basements and garages every fall. Exterior spider treatments run $150 to $300 and include knocking down webs and treating eaves and entry points, and most quarterly plans include spider control.

Wasp and yellow jacket nests peak in August and September. Removal runs $150 to $350 for an accessible nest and $300 to $500 for one inside a wall or soffit. Ground nests of yellow jackets in a Sellwood backyard are the fast, cheap version.

Boxelder bugs and stink bugs gather on sunny sides of homes in fall and squeeze in around windows. Treatment runs $150 to $300, and it works best in September before they get inside.

Fleas are a summer problem in homes with pets and crawl spaces. Interior flea treatment runs $200 to $400 and needs pets treated at the same time or it fails.

Bed Bugs and Cockroaches

Bed bug treatment in Portland runs $500 to $1,000 per room for chemical treatment across two or three visits, or $1,500 to $3,500 per unit for heat treatment done in one day. Portland's rental market and its popularity with travelers keep bed bug companies busy, and apartment buildings in Downtown, the Pearl, and along the MAX lines see the most calls.

Heat is the better choice in multi-unit buildings because it kills eggs and does not depend on tenants doing prep work. Chemical treatment is cheaper for a single-family home where the problem is contained.

Cockroaches are less common in Portland than in warmer cities, but German cockroaches turn up in restaurants and older apartment buildings. Treatment runs $200 to $450 per unit with follow-up at $100 to $150, and a building-wide program is the only thing that works when more than one unit is infested.

Oregon law places responsibility for pest treatment in rentals on the landlord in most cases, and Portland's rental housing code requires landlords to keep units free of infestation. Tenants should report problems in writing.

Quarterly Plans Versus Per-Visit Pricing

Quarterly plans in Portland run $40 to $75 a month for a single-family home, billed at $120 to $225 per visit. Plans cover ants, spiders, wasps, and general exterior treatment, with free re-service between visits. Rodent bait station monitoring is often an add-on at $20 to $40 a month.

A plan makes sense for older homes in tree-heavy neighborhoods with a history of ants and spiders. A 1910 house in Sunnyside with a crawl space and mature landscaping will use every visit, while a newer condo in South Waterfront will not, and paying $200 for the one ant treatment it needs each year is cheaper.

Contract terms vary. Some Portland companies require 12 months with a cancellation fee of $100 to $200, and others are month to month. The flexible option is worth a few extra dollars.

Plans do not cover rats beyond monitoring, bed bugs, termites, or wildlife. Those are quoted separately, and the plan discount on them is usually small.

Choosing a Pest Control Company in Portland

Oregon requires pesticide applicators to be licensed through the Department of Agriculture, and companies need a pesticide operator license. Ask for both numbers. The pest control companies serving Portland and the metro should be willing to provide them, and the state maintains a public lookup.

Ask about products, especially if you have pets, chickens, or a vegetable garden. Many Portland companies offer reduced-risk or botanical options, and they will say so. Ask whether rodent bait stations are tamper-resistant and placed where dogs and children cannot reach them.

Ask specifically about exclusion for rats. A company that only offers bait stations is selling an ongoing subscription, while a company that inspects the crawl space and the roofline and quotes a sealing job is solving the problem.

Get the treatment plan in writing, including the number of visits and the re-service guarantee. For bed bugs, ask for a written guarantee period of at least 30 days after the final treatment. For more on maintaining older Portland homes, including crawl space moisture and drainage, our home services articles cover related topics.

Frequently Asked Questions

How much does a one-time pest control visit cost in Portland?

A single visit for ants, spiders, or wasps runs $150 to $350 in Portland, including inspection and treatment. Rat and mouse initial visits run higher at $200 to $800 because of trapping and sealing.

How much does rat removal cost in Portland?

An initial rat program runs $350 to $800 with monthly follow-up at $60 to $120. Full exclusion to seal a home permanently runs $1,500 to $4,000, and crawl space cleanup after an infestation adds $1,500 to $5,000.

Is a quarterly pest plan worth it in Portland?

For older homes in tree-heavy neighborhoods like Sunnyside, Irvington, or Multnomah Village, usually yes, because ants and spiders return every season. For newer condos and townhomes, paying $150 to $350 for the occasional visit is cheaper than $480 to $900 a year for a plan.

Who pays for pest control in a Portland rental?

The landlord, in most cases. Oregon landlord-tenant law and Portland's housing code require landlords to keep units free of infestation unless the tenant caused the problem. Report issues in writing to start the clock.

When should I treat for ants in Portland?

March and September are the peak months for odorous house ants, and treating in early spring before the first big wave keeps them out of the kitchen. Carpenter ants are most active from April through June.