Bed bugs are tiny insects which feed exclusively on blood and they aren’t even picky about where they live. They can’t go without eating for months at a time, resulting in resilient little creatures which proper in environments like hotel rooms or dormitories, and are happy to come along for a ride in your luggage.

Once these bugs have taken up residence in your home, they’re difficult to find and remove. Here are some of the best methods and costs for extermination.

For a full removal, expect to pay anywhere from $500 to $1,500, depending on the method you choose and the experience of your exterminator. Most will charge you a fee for consultation, which includes visiting your home and doing a thorough inspection.

Don’t be shy about asking questions as they move through the home. Reputable contractors should be willing and able to explain to you what they’re doing, why they’re doing it and how they’re going to treat your problem. Some also offer or refer dog services, employing specially trained dogs to sniff out evidence of bugs.

Professional pest control companies may offer several treatments to meet your needs. Spray pesticides are still common — the Environmental Protection Agency lists more than 300 products for mattress, room and whole-home elimination.