Slab Leak Repair in Phoenix & Scottsdale, priced before we start.
Phoenix builds on slab. The supply lines run through or beneath that concrete, and when one develops a pinhole there is nowhere for the water to announce itself. It saturates the sub-base. It tracks along the underside of the slab. It finds a low point, which is rarely near the leak.
The tell is usually indirect. A warm patch on the floor. A water bill that climbed forty dollars and stayed there. The sound of running water when every fixture in the house is closed. Hairline cracking in the drywall as the slab moves on softened ground.
None of these prove a slab leak, and that is the point of the diagnostic. Acoustic gear and thermal imaging locate the line before anyone opens concrete. A plumber who wants to start breaking floor to find out is guessing with your house.
What points to a slab leak
A warm spot on the floor
The classic one, and specific to hot-water lines. Cold-line leaks give you nothing underfoot at all, which is why they run longer.
The meter moves with everything off
Close every fixture, find the meter, watch the low-flow indicator. If it turns, water is leaving the system somewhere it should not.
A bill that stepped up and stayed up
Not a seasonal drift. A discrete jump that never came back down. That is a constant loss, and constant losses are usually under something.
Running water you cannot account for
Especially at night with the house quiet. Put an ear to the floor near interior walls; it carries further through concrete than people expect.
How we approach it
- 01
Pressure test to confirm
Isolate hot and cold and test them separately. This establishes whether there is a leak and which system it is on, before anyone touches concrete.
- 02
Locate it precisely
Acoustic listening plus thermal imaging. In north Scottsdale caliche and decomposed granite, acoustic alone can mislead, which is why we do not rely on it alone.
- 03
You choose repair or reroute
Spot repair opens the floor at one point. A reroute abandons the failed section and runs new line through wall and attic. Reroute is often cheaper once the floor covering is priced in, and it never fails at the same spot again.
- 04
We put it back
Concrete patched, moisture handled. We coordinate with flooring rather than leaving you with an open trench and a phone number.
What it typically runs
$1,200 – $6,000
Detection alone is a few hundred and is credited against the repair. A single accessible spot repair sits low. A full reroute of a hot-water loop in a larger home sits high. Flooring restoration is quoted separately and honestly.
Financing is available on larger jobsA slab leak is one of the few plumbing problems where the delay costs more than the repair.
Slab Leaks: questions we get asked
Straight answers, the same ones we give on the phone.