By PlumberDallas.com editorialUpdated
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Common causes
Slab leak
A supply line under the foundation.
Drain leak
A leaking drain under the slab.
Appliance or supply line leak
Dishwashers, ice makers, and washing machines.
Exterior water
Grading or irrigation problems.
What you can check yourself
- Do the meter test with all water off.
- Check nearby appliances and supply lines.
- Feel for warm spots, which suggest a hot-water line.
- Photograph the area for insurance.
When to call a plumber
Call promptly if water is present or the meter test shows a leak.
How a plumber diagnoses it
Leak detection pinpoints the source with pressure tests, acoustic equipment, and thermal imaging.
Related services
- Leak Detection in Dallas — Find the source before you open walls or floors.
- Slab Leak Repair in Dallas — Locate the leak and choose the least disruptive repair.
- Emergency Plumbing in Dallas — What to do first, and how to get urgent help.
What it may cost
See the slab leak repair cost guide for published price ranges and cost factors.
Ready for a professional diagnosis? Learn about leak detection in Dallas and request help.