Shelterworks commonly hears the comment from homeowners and Realtors®, ”But why are you going in there? There’s nothing in there!” Building cavities are full of things important to buildings including framing, water penetration concerns, foundation systems (after all, something has to support that beautiful hardwood floor), and isn’t it nice to know if there are unwanted guests (pests) occupying that space. Mice are particularly damaging to electrical systems and carry a long list of unsanitary concerns that can affect indoor air quality and building habitability.