As with any type of pest control service, you want to look for a company that stands behind their service with a satisfaction guarantee. You should also explore the websites of any companies you find online to see how long they have been in business, and how well-trained and experienced their technicians are. Also consider whether they’re locally owned and operated—any rat exterminator near you should be experts in the specific types of rodents active in your local area. Lastly, check the customer reviews of any rodent control company on your list.