Raised concrete slab foundations and floor systems are one type of common construction methods in our area. These foundations are hard to detect termites before they get into the wood of the building because the exterior walls usually sit over the joint between the floor system and wall. First signs of infestation usually show up in baseboards, door casings, window sills, and the exterior walls. These slab foundations/floor systems are also easily treated during construction to prevent termite attack if a liquid treatment is done like we do it.