Are pest control companies worth it? One word: Yup. Once you catch wind of insects or rodents taking up residence, it's time to take action. At first glance, hiring a professional pest control company may seem like an expensive or unnecessary investment.

A monthly service would help keep the pest proliferation down to an acceptable level. On the other side of things, some homes have far less pest activity. They might only need service once every three months. However, choosing this option with a long time between treatments you may see a pest or two.

The basic difference between extermination and pest control is this: Extermination is concerned with eliminating the immediate pest infestation, whereas pest control is concerned with both the immediate pest infestation but also how to prevent reinfestation.

Most of the time, pest control services only need to spray in a few places that keep pests from crossing into your house. They will effectively draw a barrier around the outside edges that pests cannot cross, and a few places designed to kill any pests that slip through.