Some indications that you are dealing with expansive soils are: 1. Foundation cracks; 2. Heaving and cracking of floor slabs and walls; 3. Jammed doors and windows; 4. Ruptured pipelines; and 5. Heaving and cracking of sidewalks and roads. If you are experiencing any of these problems, it’s important to be proactive. The longer that expansive soils exert pressure on your foundation, the more costly and difficult fixing those problems can be.