23 Jan. 24

How To Find A Water Leak Under A Concrete Floor

Unveiling the Mystery: How to Find a Water Leak Under a Concrete Floor


Discovering a water leak under a concrete floor can be a challenging situation, but early detection is crucial to prevent further damage. In this guide, we’ll walk you through the steps on how to find a water leak under a concrete floor and address the issue promptly.


Signs of a Water Leak in a Concrete Slab Floor


Before diving into the slab leak detection process, it’s essential to be aware of potential signs indicating a water leak beneath your concrete floor. Look out for:

Unexpected Increase in Water Bills: A sudden spike in water bills without any apparent reason might be a sign of an underground leak.


Mold or Mildew Growth: Moisture from a hidden leak can promote the growth of mold or mildew, especially in basements or confined spaces.


Damp or Discolored Flooring: Check for areas of the concrete floor that feel consistently damp or show discoloration, as these could indicate a water issue.


How to Find a Water Leak Under a Concrete Floor


  1. Listen for Sounds of Running Water: In a quiet environment, listen to the sound of running water. Turn off appliances and faucets to minimize background noise.


  1. Check for Hotspots with an Infrared Thermometer: An infrared thermometer can help identify temperature variations. Leaking water may cause localized temperature changes on the concrete surface.


  1. Use a Water Meter: Turn off all water-using appliances, and monitor the water meter. If it continues to run, it suggests a leak somewhere in your plumbing system.


  1. Inspect Flooring for Moisture: Use a moisture meter to check specific areas of the concrete floor. Elevated moisture levels may indicate a leak.


  1. Utilize a Leak Detection Professional: For precise and non-invasive detection, consider hiring a professional leak detection service. These experts use advanced technologies such as acoustic listening devices and ground-penetrating radar to pinpoint the exact location of the leak.


Addressing the Water Leak


Once you’ve identified the location of the water leak, it’s crucial to take immediate action. Depending on the severity, you may need to fix any damaged or leaking pipes beneath the concrete slab. You will also need to seal any cracks in the concrete to prevent further water intrusion. Consider applying a waterproofing membrane to protect the concrete from future leaks. Remember, early detection and timely intervention are key to minimizing damage and preventing costly repairs. If you encounter challenges or want a professional assessment, don’t hesitate to reach out to a reputable leak detector like LeakHero. 


Trust LeakHero for Full-Service Leak Detection


Finding a water leak under a concrete floor requires a systematic approach, keen observation, and sometimes professional assistance. By addressing the issue promptly, you can safeguard your property from potential water damage and ensure a dry and secure living environment. LeakHero specializes in state-of-the-art leak detection services. If you suspect a water leak under your concrete floor, call us at 855-772-1632 for a thorough and accurate assessment.