Sagging floors are a sign that something might be wrong with your home. If you have a crawl space under your home then chances are this might be the main cause of your slanted floors. Excess moisture can damage the boards and beams underneath your floor, which can cause them to sink. Cantey Foundation Specialists installs waterproof and vapor proof CleanSpace liners and the effective SmartJack system to re-stabilize the beams are two solutions that will make sure your floors are stable.