One-time treatments and plans
Published Seattle ranges for one-time general pest treatments run roughly $95 to $550, with an average near $170. Simpler jobs like ants or spiders tend to sit in the lower half.
Quarterly prevention plans commonly run about $95 to $185 per visit. Plans make sense when pests return each season.

Rodent work
Rat control in Seattle commonly publishes at about $199 to $630, averaging around $412. Targeted exclusion runs roughly $209 to $627, and whole-home sealing about $500 to $2,000.
Crawl space cleanup typically runs $300 to $1,000, with full cleanouts that include exclusion and restoration reaching $2,200 to $6,500 on larger or heavily contaminated spaces.
What moves the price
Pest type, infestation size, home size, access to crawl spaces and attics, and the number of follow-up visits all affect cost. Exclusion and cleanup add real labor.
Wood-destroying insect repairs can add more: published figures put carpenter ant structural repairs around $300 to $3,000 and related moisture remediation around $1,500 to $4,000.

Ways to keep costs down
Act early. Small infestations are cheaper to treat than established ones. A few droppings, one ant trail or a starter wasp nest costs far less to handle than a mature problem.
Invest in prevention that lasts. Sealing entry points with steel, fixing moisture and replacing vent screens reduce future visits.
Bundle related work. Rodent control, exclusion and crawl space cleanup are often cheaper when scheduled together. Ask for an itemized quote so you can decide what to do now and what can wait.
Getting a fair quote
A good quote comes after an inspection and is written, itemized and fixed before work starts. Be wary of very low prices that skip exclusion or follow-ups.
Ask what is included, how many visits, what happens if pests return, and whether cleanup or sealing is part of the price.
One-time versus ongoing service
A one-time treatment fits a single, clearly defined problem such as a wasp nest, a pantry infestation or a contained ant trail. You pay for the visit and any included follow-up.
A recurring plan fits problems that come back every season, such as fall rodents near greenbelts, spring ant trails or heavy spider webbing. Plans spread cost across the year and usually include return visits between scheduled service.
For rodents, the biggest long-term savings often come from exclusion. Sealing entry points with steel costs more up front than trapping alone, but it can prevent repeat infestations year after year.
When comparing quotes, compare scope, not just the total. A cheaper quote that skips sealing, cleanup or follow-up visits can end up costing more if the problem returns.
Questions to ask before you book
- Is the inspection included?
- What exactly is included in the price?
- How many follow-up visits are included?
- Is exclusion or sealing part of the job?
- What happens if pests come back?
- Is the quote written and fixed?