Find the leak before opening the floor

Slab Leak Detection and Repair in Mesa and Phoenix

Confirm whether a hidden water leak is under the slab, narrow its location, and compare direct repair, rerouting, and broader piping options before unnecessary demolition begins.

Homeowners containing water from a hidden plumbing leak

Watch for these signs

When to call

  • One area of the floor feels unusually warm
  • The water meter moves while every fixture is off
  • Water use rises without an obvious explanation
  • Flooring is damp, discolored, lifted, or cracked
  • You hear water moving when the property is quiet
  • Pressure drops or the water heater runs more than expected

Service scope

What we handle

  • Water-meter and isolation testing
  • Hot and cold water-line diagnosis
  • Leak-location testing based on site conditions
  • Direct-access, reroute, and repipe option review
  • Repair planning that accounts for flooring and occupied space

Make a useful decision

What changes the right recommendation

The symptom is only the starting point. These details help separate a lasting repair from a short-term patch.

01

One failure or a piping pattern

A single damaged section may support a targeted repair. Repeated leaks, problem materials, or a poor route can make rerouting or repiping the better long-term choice.

02

Repair access

Cabinets, finished flooring, post-tension slabs, walls, ceilings, and exterior routes all affect how the line can be reached or bypassed.

03

Confirmed source

Drain leaks, irrigation, HVAC condensate, waterproofing, and appliance connections can imitate slab-leak symptoms. The source should be tested before a floor is opened.

Phoenix Valley context

Desert soils and hard water make careful diagnosis valuable

Soil movement, heat, mineral scale, pipe material, workmanship, and age can all contribute to leaks. None of those factors identifies the failed line by itself, so testing comes first.

Planning the work

What affects the price

  • Leak location and confidence of the diagnosis
  • Direct floor access versus rerouting
  • Pipe material, length, and number of affected lines
  • Cabinet, wall, flooring, or exterior access
  • Dry-out and restoration work, which may involve separate trades

What happens next

A straightforward service process

  1. 1

    We review meter behavior, damage, pressure, temperature clues, and plumbing history.

  2. 2

    Hot, cold, fixture, and irrigation-related possibilities are isolated methodically.

  3. 3

    The likely source and practical access or reroute choices are explained.

  4. 4

    Approved plumbing work is completed and the repaired system is tested.

Common questions

Before you schedule

How do I know if I have a slab leak?

Warm flooring, unexplained meter movement, rising water use, damp finishes, running-water sounds, and pressure changes are common clues. Testing is needed because several non-slab problems can look similar.

Does slab leak detection damage the floor?

Diagnosis often narrows the source without exploratory demolition. A direct repair may require access through the floor, while a reroute may use walls, ceilings, or another path.

Is it better to repair or reroute a slab leak?

The best choice depends on the line, location, access, piping history, material, finish damage, and likelihood of another failure. We compare those conditions instead of using one answer for every property.

Get help

Request slab leak repair

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Real customer feedback

Trusted by Arizona customers

Recent 5-star reviews for One Call Plumbing Services, the established local service team behind One Call Plumbing Services.

★★★★★
“I will be using One Call Service for any future plumbing needs.”

Joann J.Posted on Yelp

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★★★★★
“They called and came out the same day.”

Karen A.Posted on Angi

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★★★★★
“Outstanding job! Fast and efficient.”

Bob M.Posted on Angi

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