When it comes to professional pest control services in Seattle, the cost can vary depending on several factors. These factors include the type of pest being treated, the size of the infestation, and the method of treatment being used.

On average, homeowners can expect to pay anywhere from $100 to $300 for a one-time treatment for common pests such as ants, spiders, or roaches. However, if the infestation is more severe or requires multiple treatments, the cost can go up to $500 or more.

For more serious infestations like bed bugs or termites, the cost can be significantly higher. Bed bug treatments can range from $500 to $1500 or more depending on the size of the home and extent of the infestation. Termite treatments can also be quite costly, with prices starting at around $1000 and going up to several thousand dollars.

It's important to keep in mind that while professional pest control services may seem expensive upfront, they can actually save homeowners money in the long run by preventing damage to their property and avoiding potential health risks associated with pests.

Overall, the cost of professional pest control services in Seattle will depend on a variety of factors specific to each situation. It's always best to contact a reputable pest control company for a quote tailored to your individual needs.