Detecting a slab leak, which is a water leak beneath the concrete foundation of a building, can be challenging. However, several signs may indicate a leaking pipe in the slab: Water damage or dampness: Look for unexplained water stains, discoloration, or damp areas on the floor, walls, or baseboards near the slab. Warm spots: If you notice warm areas on the floor, it could indicate a hot water pipe leak within the slab. Water meter movement: Turn off all water fixtures and appliances, then check your water meter. If the meter continues to move, it suggests a hidden water leak. Unusual sounds: Listen for the sound of running water when no faucets or fixtures are in use. It may indicate a leak beneath the slab. High water bills: A sudden increase in water bills without an apparent cause could be a result of a hidden water leak. Foundation issues: If you notice cracks in the foundation, shifting or settling of the structure, or uneven floors, it may be a sign of long-term water damage caused by a slab leak. If you suspect a slab leak, it’s crucial to seek professional help from a plumber or a leak detection specialist who can use specialized equipment, such as electronic leak detectors or thermal imaging, to pinpoint the exact location of the leak and recommend the necessary repairs.