Find the source before damage spreads

Leak Detection and Repair in Mesa and Phoenix

Pinpoint hidden and visible plumbing leaks, understand the repair options, and stop water damage without unnecessary demolition.

Homeowners containing water from a ceiling leak

Watch for these signs

When to call

  • An unexplained increase in water use
  • Water spots, warm flooring, or damp walls
  • The meter moves when fixtures are off
  • Reduced water pressure
  • Mold, musty odors, or unexplained moisture

Our services

What we handle

  • Fixture and supply-line leak diagnosis
  • Wall, ceiling, and slab leak investigation
  • Main water service diagnosis
  • Isolation testing
  • Repair planning based on the confirmed source

Your options

Choosing the right option

We look at the cause, the condition of the existing system, and what will work best for your property.

01

Visible source or hidden path

Water can travel along framing, pipe, and flooring before it becomes visible. The wet spot is not always directly below the failed plumbing.

02

Supply, drain, fixture, or non-plumbing

Meter tests, usage patterns, temperature, fixture testing, and timing help separate pressurized leaks from drains, irrigation, roofs, and HVAC condensate.

03

Repair access

Testing should narrow the likely source so access can be planned around cabinets, tile, flooring, ceilings, business operations, and restoration.

Around the Valley

Dry desert conditions do not make every leak obvious

Water can soak into soil, masonry, cabinets, and wall cavities. A high bill or moving meter may be the first clue even when no puddle is visible.

Planning the work

What affects the price

  • Visible versus concealed source
  • Testing needed to isolate the system
  • Wall, ceiling, slab, cabinet, or underground access
  • Localized repair, reroute, or broader piping work
  • Dry-out and restoration performed by other trades

What happens next

A straightforward service process

  1. 1

    We review the symptoms and water-use pattern.

  2. 2

    The system is isolated and tested methodically.

  3. 3

    The likely leak location and repair access are confirmed.

  4. 4

    You receive a clear repair plan before work proceeds.

Common questions

Before you schedule

Does leak detection require opening walls?

Often the testing can narrow the source before access is opened. Final repair may still require access, but the goal is to avoid exploratory demolition.

Can a high water bill be a leak?

Yes. Toilet valves, irrigation connections, service lines, slab leaks, and other failures can waste water without an obvious puddle.

How can I check for a hidden leak?

Turn off known water uses and observe the meter without operating any fixture. If it still registers flow, confirm irrigation and equipment conditions, then arrange professional isolation testing.

How soon can you look for a leak?

Same-day leak detection is often available, depending on the job. If water is actively spreading or reaching electrical equipment, treat it as an emergency: shut off the water if it is safe and call 480-663-2255, because emergency service is available 24/7.

Get help

Request leak detection

Tell us what is happening and our team will be in touch.

Call us directly

Call 480-663-2255

Talk with our local team.

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Real customer feedback

Trusted by Arizona customers

5-star feedback from One Call Plumbing Services customers. 4.8 out of 5 from 78 Google reviews (October 2026).

“They were polite, confident and took time to explain the problem and what they were going to do. They had to dig in the grass, but were as least destructive as possible.”

Angie B.Posted on Google, Jan 2023

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