I've been using Capitol Pest since 2011. They have great and prompt service, and, as a repeat customer with accounts at several rent properties, they responded pretty quickly to me My only reason for not giving them 4 stars is that they send a lot of emails - 1, regarding an upcoming visit; 2, a visit service report; and 3, an invoice. I get confused especially with the latter two. It'd be better to just get one email for both service report and invoice, and it'd be great if they could put the service address in the subject of the emails so I could quickly distinguish among my many properties.