Slab Leak Assessment
A slab leak is a water line leak beneath a concrete foundation. Because it's hidden, the signs often appear before the leak itself. This page explains what to watch for and how to request a slab leak assessment.
Request this service
When it's needed
Common reasons you may need slab leak assessment
- A warm spot on the floor with no obvious cause
- Cracking or lifting of floor tile
- An unexplained rise in the water bill
- Sounds of running water under the floor
- Dampness along a slab edge or at a wall base
What's involved
Typical service tasks & considerations
- Reviewing the reported signs and water usage
- Narrowing down the likely area of the leak
- Assessing whether the leak is under the slab
- Recommending the appropriate repair approach
- Coordinating any follow-up repair work
Possible causes
Related plumbing problems & causes
Pinhole corrosion in under-slab copper lines
Pipe movement or abrasion against concrete
Age-related wear of under-slab piping
Pressure or water chemistry issues
Stay safe
Safety & prevention
General precautions to keep in mind. These don't replace professional assessment.
- !A warm floor or rising water bill can indicate a slab leak — don't ignore it.
- !Slab leaks can damage flooring and the foundation over time, so early assessment helps limit repair scope.
Slab Leak Assessment FAQs
Questions about this service
- What is a slab leak?
- A slab leak is a leak in a water line that runs beneath a home's concrete foundation. Because the pipe is hidden, the leak often shows up as a warm floor, cracking tile, rising water bills, or the sound of running water before it's visible.
- How is a slab leak assessed?
- Assessment reviews the reported signs, water usage, and the likely area of the leak to determine whether a line under the slab is the source. From there, the appropriate repair approach — which may involve rerouting the line or accessing the slab — can be recommended.
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Need slab leak assessment?
Describe the issue and submit a service request. Availability is confirmed with the business — no response time is promised here.