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Thermal camera used to check for water leak under concrete floor

How to Detect a Leak Under a Concrete Floor

Leaks under a concrete floor or slab are notoriously difficult to find, often cause extensive property damage, and can be expensive to fix. However, while detecting water leaks under concrete slabs is challenging, it’s not impossible. Learning how to detect a leak under a concrete floor can be as simple as knowing what signs to look for and hiring the best professional team for the repair. 

If you think you might have a slab leak, there’s no time to waste. Request a job estimate online today

What Is a Slab Leak? 

Depending on the location, some homes are built on a concrete foundation called a slab. These slabs are made with sewage, electricity, and plumbing lines running underneath. If the pipes under the slab become damaged, a slab leak can spread throughout the foundation, causing widespread damage. 

Related Topic: What to Look for on a Plumbing Inspection Report 

What Causes a Slab Leak? 

A slab leak can be caused by a variety of environmental or installation problems. Some reasons you may experience a slab leak include:  

  • Incorrect water pressure 

  • Poor construction  

  • Soil conditions 

  • Earthquakes 

  • Age of the home 
     

While not all homes are in earthquake zones or have bad soil conditions, poorly constructed or old houses exist everywhere. Cutting corners during construction, uneven slabs, or shoddy concrete quality can all play into the reasons why you may experience a slab leak.  

How Do You Know if You Have a Slab Leak? 

Often, there are no apparent signs of a slab leak. The sound of running water or water seeping up through the basement floor doesn’t always happen when there is a problem under your home’s foundation. This is why identifying slab leaks underground is complicated and professional equipment is often needed. However, there are a few signs that may alert a homeowner they may have a slab leak, such as:  

  • Buckled, warped, or separated floorboards 

  • A mouldy or unpleasant smell 

  • Damp or soaked carpet 

  • Increased water bill  

  • Random hot spots on the floor 

  • Pooling water 

Avoiding More Costly Repairs 

If left unrepaired, a water leak under your slab can cause considerable damage to the foundation of your home, which can lead to expensive repairs. Mr. Rooter® Plumbing uses sophisticated leak detection equipment that will locate the source of your leak without any exploratory digging or property damage. We can then perform expert sewer and water line repairs to return your home to its normal condition. If you suspect you have a slab leak, contact your local Mr. Rooter Plumbing at (855) 591-0128 or request a job estimate today.  

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