During the winter it’s not uncommon to see new or additional bugs inside of the house. It isn’t always a sign of an infestation though. The 2 major causes of new pests are firewood and decoration boxes. Most all bugs come into your home from the outside. This is why you are able to protect your home using an exterior application. The bugs are intercepted before coming inside. When you bring firewood from outside into the house you can also be bringing in bugs. Another big cause is decoration boxes. They sit in storage all year and then get brought inside. If you don’t inspect the box before bringing them inside you could also be bringing in bugs. Our suggestion is to keep firewood stored away from the house and keep decoration boxes outside if you can help it. Also inspect everything before bringing it in to make sure it’s not covered in bugs! Hope this helps!