How Much Does Pest Control Cost in Kent, WA? (2026 Price Guide)

Kent homeowners and landlords searching for pest control pricing rarely find a straight answer. National chain websites list generic ranges. Local company sites hide prices behind “call for a quote” buttons. This guide gives you real pricing for the most common pests in South King County — so you can budget accurately and know when you’re being quoted fairly.

Guardian Pest Control serves Kent, Auburn, Renton, Federal Way, Burien, Tukwila, and the surrounding Green River Valley. We’ve published this guide to help you understand exactly what drives pest control costs in this specific area — and what to watch out for when comparing quotes.

Pest Control Pricing at a Glance: Kent, WA Cost Table (2026)

The table below covers the most common pest control services requested by homeowners and landlords in South King County. All prices reflect the Kent, WA market as of 2026.

Prices reflect South King County market rates. Individual quotes may vary based on property size, infestation severity, and access requirements.

Single Treatment vs Quarterly Programme: What Costs More Long-Term?

A single pest control treatment in Kent costs $150–$350. A quarterly programme costs $400–$800 per year and covers four scheduled visits plus unlimited call-backs between treatments.

The maths favours programmes for most Kent homeowners. A home that requires two single treatments in the same year at $200 each ($400 total) is already at the annual programme price — without the call-back protection or preventive treatments between visits.

Washington State’s Pacific Northwest climate creates year-round pest pressure. Ants are active from March through November. Rodents seek warmth and move indoors in autumn. Cockroaches thrive in mild, damp conditions that Kent’s climate provides. A quarterly programme maintains a chemical barrier around your property through every season — single treatments react to active infestations rather than preventing them.

When a single treatment makes sense:

• One-time wasp nest removal in summer
• Landlord treating a rental unit before new tenancy
• Fleas following a pet incident
• Renters whose lease doesn’t include pest control responsibility

When a quarterly programme makes sense:

• Homeowners who have had repeat ant or spider problems
• Properties near the Green River, Soos Creek, or drainage corridors
• Homes with attached garages or crawl space access points
• Landlords managing multi-unit properties
• Anyone who has had rodents in the past — they return to the same routes

To understand what a professional inspection finds before you decide on a programme, read our guide: What to expect from a professional pest inspection in Kent, WA.

Cost by Pest Type: What to Expect in South King County

Ant Control Costs in Kent, WA

Ant treatment in Kent costs $100–$200 for a single exterior spray and gel bait application. Odorous house ants and pavement ants are the most common species in King County — both respond well to exterior perimeter treatments. Carpenter ants, which are found in older timber-framed homes near wooded areas, require interior void treatments and typically cost $150–$275.

Ant populations in Kent peak between March and June. Homes treated in early spring before colony expansion have lower re-infestation rates than those treated reactively in summer.

Rodent Control Costs in Kent, WA

Rodent control in Kent typically costs $150–$350 for initial baiting and trap placement. Follow-up monitoring visits cost $75–$150 per visit. Norway rats are the dominant rodent species in the Green River Valley industrial corridor. Roof rats are found in residential neighborhoods with mature tree canopy. House mice are the most common indoor species across all Kent neighborhoods.

Exclusion work — physically sealing entry points in the structure — is priced separately at $300–$700 depending on the number and complexity of access points. Exclusion is the only permanent solution to chronic rodent problems. Baiting and trapping controls the active population, but without exclusion, new animals will find the same entry routes within weeks.

Wasp and Hornet Removal Costs in Kent, WA

Wasp and hornet nest removal in Kent costs $150–$300. Ground nests are generally at the lower end. Aerial nests under eaves, in wall voids, or at height require more time and equipment and push toward the upper end. Yellowjacket nests inside wall cavities often require a void treatment rather than direct nest removal, adding $50–$100 to the base price.

Wasp season in South King County runs from late May through September. Nests discovered early in the season (June) are smaller and cheaper to treat than established colonies found in August. Guardian Pest Control offers same-day wasp removal for active stinging hazards — call (304) 684-6328 for same-day availability.

Cockroach Treatment Costs in Kent, WA

Cockroach treatment in Kent costs $150–$350 for an initial treatment. German cockroaches — the species most common in Kent apartments and commercial kitchens — require multiple visits to eliminate because egg cases (oothecae) are resistant to most contact insecticides. A proper cockroach elimination programme runs two to three visits over four to six weeks and costs $300–$600 total.

American cockroaches are found in commercial properties near Kent’s industrial corridor. These are larger, less prolific, and typically respond to a single perimeter treatment combined with drain treatment.

Bed Bug Treatment Costs in Kent, WA

Bed bug treatment in Kent costs $400–$800 for a two-room chemical programme or $1,200–$3,500 for whole-home heat treatment. Chemical programmes require three visits over 30 days. Heat treatment eliminates bed bugs in a single day-long treatment but carries a higher upfront cost.

Bed bugs in King County are most commonly introduced through travel, secondhand furniture, and multi-unit housing. Washington State Department of Health provides guidance on bed bug identification and tenant rights — renters and landlords should review the WA DOH bed bug resources before booking treatment.

What Factors Affect Pest Control Costs in Kent?

Several factors push pest control quotes higher or lower in South King County. Understanding them helps you evaluate whether a quote is accurate or inflated.

Property Size

Larger properties require more product, more technician time, and often more follow-up visits. A 1,000 sq ft apartment costs less to treat than a 3,500 sq ft home with a crawl space, basement, and attached garage. Most Kent pest control companies price by linear footage of perimeter for exterior treatments and by square footage for interior treatments.

Infestation Severity

A light ant trail along a foundation costs less to treat than a multi-colony infestation that has spread to interior walls. Technicians assess infestation severity on first visit — heavier infestations require higher product volume and additional follow-up visits. If a company quotes a flat price without inspecting the property first, treat that as a red flag.

Pest Species

Treatment complexity varies significantly by species. Odorous house ants respond to exterior bait and spray. Carpenter ants require void treatments. German cockroaches need gel bait rotations across multiple visits. The species drives the treatment protocol, which drives the cost.

Access and Construction Type

Homes with crawl spaces require technicians to enter and treat the sub-area. This adds time and affects pricing. Homes with pier-and-beam foundations common in older Kent neighborhoods may have more rodent access points than homes on concrete slabs. Multi-story buildings require equipment and time that single-story properties do not.

Location Within Kent

Properties adjacent to the Green River, Soos Creek, Lake Meridian, or industrial drain corridors face higher pest pressure and typically need more aggressive or frequent treatments. Rural-edge properties in Covington and Maple Valley may see heavier carpenter ant and rodent activity than urban Kent neighborhoods. These environmental factors affect pricing when they require extra visits or more product volume.

Why DIY Pest Control in Kent Often Costs More

Over-the-counter pest products at Kent hardware stores and garden centres cost $10–$80 per product. Most homeowners attempting DIY pest control spend $100–$400 across multiple products before calling a professional — often after several months of unsuccessful attempts.

The problem with DIY pest control in the Pacific Northwest is that retail products are formulated for consumer use with lower concentrations than professional-grade products. Washington State regulates pesticide application — licensed technicians under the Washington State Department of Agriculture (WSDA) have access to product categories not available to the general public. More importantly, professional technicians identify the pest species correctly and apply the right treatment protocol. Treating the wrong species or using the wrong application method produces no result.

The Washington State Department of Agriculture maintains a licensed pesticide applicator search where you can verify any company’s credentials before booking.

Common DIY failures in Kent:

• Using spray insecticides on German cockroaches — this disperses the population rather than eliminating it, spreading the infestation to new rooms
• Snap traps without exclusion for Norway rats — catches active animals but doesn’t stop new ones entering through the same gaps
• Store-bought ant killer on carpenter ants — targets workers but not queens or satellite colonies in wall voids
• Bed bug sprays on established infestations — egg cases are chemically resistant; eggs hatch 6–10 days after treatment and re-infest treated areas

How to Get a Fair Pest Control Quote in Kent, WA

Getting a fair quote from a Kent pest control company requires asking the right questions before agreeing to any service.

Ask for a written, itemised quote

Any legitimate company will provide a written quote that breaks down the service, number of visits, and what’s included. A verbal quote over the phone without inspection is not a quote — it’s an estimate that can change on arrival.

Confirm WSDA licensing

All commercial pesticide applicators in Washington State must hold a valid WSDA Business License and their technicians must hold a WSDA Pesticide Applicator License. Ask to see the license number or verify at agr.wa.gov. Guardian Pest Control’s technicians are all WSDA-licensed.

Understand what’s included in a programme

Before signing a programme agreement, confirm: How many visits per year? Are call-backs (unscheduled return visits) included at no extra charge? Is there a minimum contract term? What is the cancellation policy?

Compare programme value, not just upfront price

A quarterly programme at $600/year with unlimited call-backs is better value than one at $500/year with call-backs charged at $75 each if you have active pest pressure. Look at total annual cost including expected call-back visits.

Get at least two quotes

For treatments costing over $500 — bed bugs, termites, rodent exclusion — get two or three quotes. For general pest control programmes, one or two quotes is sufficient. National chains and local independent companies often vary significantly in price and service model.

Guardian Pest Control Pricing: What We Charge in Kent, WA

Guardian Pest Control provides transparent pricing for all standard services in Kent and South King County. We offer a free on-site estimate for all new customers — no obligation to book.

Our residential pest control programmes start at $400/year for quarterly service covering general pests (ants, spiders, cockroaches, silverfish). All programmes include unlimited call-backs between scheduled visits — if a treated pest returns before your next quarterly visit, we come back at no charge.

We serve Kent, Auburn, Renton, Federal Way, Burien, Tukwila, Bellevue, Covington, Maple Valley, and Seattle. All treatments are carried out by WSDA-licensed technicians. We carry full liability insurance and comply with all EPA-registered product guidelines.

For same-day emergency pest control — wasps, hornets, rodent incursions, or any active infestation requiring immediate response — call (304) 684-6328. Emergency response is available Monday–Saturday 08:00–18:00.

To understand exactly what happens at a first visit before you book, read: What to expect from a professional pest inspection in Kent, WA. For a full breakdown of our treatment methods, see: How pest control works: what happens during a treatment visit.

Pricing information accurate as of May 2026. Individual quotes depend on property size, infestation severity, and service scope. Guardian Pest Control provides free on-site estimates — book online or call (304) 684-6328.