Carpenter Ants which are most common species to be crawling a house varies in length which measures nearly about 6 to 25 mm of size. It is very active between sunset and sunrise. It favors moist or humid environments and travel in loose trails. It is often associated with wood. Carpenter Ants mainly feed on the dead and living insects, juices of ripe fruits and prefer sweets. It bores into the woods to make their nest, thereby causing serious structural damage.
The damage caused by these Carpenter Ants can be controlled by thorough inspection of areas of high moisture content. Try to clear away any infested wood from your living environment. Try to investigate and correct your humidity issues. Make sure that you have kept the food items in a sealed container since it discourages the carpenter ants from invading the buildings.