We purchased a forclosure 3 months ago. It had been unoccupied for almost a year by the time we bought it. The house had dead silverfish in the bathrooms, tons of little black jumping spiders all over the yard and an infestation of fire ants. Champions Pest Control was right near our old appartment, so I figured I'd give them a call. They said they could guarantee their work inside the house for 3 months and outside for 1 month.
Pros: Knowledgable, professional, thourough