Signs of a Hidden Water Leak
How to spot a leak inside walls or under the slab before it does real damage.
- Licensed · ROC 333866
- 2-Yr Workmanship Warranty
- Flat-Rate · $149 Applied
Why hidden leaks matter
A hidden leak wastes water, drives up your bill, and quietly damages drywall, flooring, and framing — and in Arizona, warm, damp spaces can grow mold. The sooner you catch one, the smaller the repair.
Warning signs to watch for
- A water bill that jumped for no reason
- The sound of running water when everything is off
- A warm spot on the floor (a sign of a hot-water slab leak)
- Musty smells, mold, or discoloration on walls or ceilings
- A drop in water pressure
- Cracks or bubbling in paint or flooring
In-wall vs. slab leaks
Leaks inside walls can usually be located and repaired directly. Under-slab leaks are trickier — in many Arizona homes the most reliable fix is to reroute the affected line and abandon the pipe in the slab, rather than jackhammering the foundation. We’ll walk you through the options honestly.
A simple test you can do
Turn off every water fixture in the house, then look at your water meter. If it’s still moving, water is going somewhere it shouldn’t. If you suspect a leak, shut off your main water valve and give us a call — knowing where that valve is before you need it saves a lot of damage.
Frequently Asked Questions
How do I know if I have a slab leak?
Common clues are a warm spot on the floor, the sound of water running with everything off, an unexplained high bill, or moisture with no visible source. We can help pinpoint it.
What is the water-meter test?
Turn off all water in the home and watch the meter. If it keeps moving, you likely have a leak somewhere in the system.
Is a small leak really urgent?
Small leaks rarely stay small, and hidden ones cause the most damage over time. Catching one early is almost always cheaper than waiting.
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