Rodents are notorious for invading attics and crawl spaces during the winter months, but the truth is that you have to be on the lookout for them all year long. They like entering our homes for the same reason that we like living in them, but they don’t have the manners to heed a locked door like other unwanted guests. As they enter our homes looking for food or a place to build a nest, they can do thousands of dollars’ worth of damage. In many cases, you might not even know that you have a problem until they’ve already nested.