Orange County Leak Detection

Find the leak. Fix it for good.

Hearing water you can't see, or watching the bill climb? Blackwell Plumbing tracks down hidden water and slab leaks across Orange County and LA, then repairs them with upfront pricing and 24/7 emergency service.

Hidden water and slab leaks found and fixed. Open 24/7.

  • Water & slab leak detection
  • Upfront pricing, no pressure
  • 24/7 emergency service

Request service

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Or call (562) 416-5779

  • 24/7 emergency plumbing
  • Same-day appointments
  • Family owned & operated
  • CA Lic. #1139682
  • Licensed, bonded & insured
  • Upfront pricing
  • Residential & commercial
  • Financing for qualifying customers
Black ABS drain pipes and a clean-out under a home's subfloor

Warning signs

Signs you have a hidden leak

Most leaks hide inside walls, under floors or below the slab. These are the usual giveaways:

  • A water bill that jumped with no change in use
  • The sound of running water when every tap is off
  • Warm or damp spots on the floor (a common slab-leak sign)
  • Stains, bubbling paint or a musty smell on walls or ceilings
  • Low water pressure throughout the house
  • A water meter that keeps moving with everything turned off
New copper water line and pressure regulator installed beside a house

What we do

Leak detection and repair, start to finish

We find it, show you where it is, and fix it, so you're not juggling separate companies.

  • Water leak detection inside walls, ceilings and yards
  • Slab leak detection & repair
  • Pipe repair, or copper and PEX repiping when lines are failing
  • Water main repair & replacement
  • Shut-off valve and pressure regulator replacement
  • Concrete saw cutting, patching & restoration when we have to open the slab

Family owned & operated

Why call Blackwell for a leak

  • We fix what we find

    Detection, repair, repiping and concrete patching under one roof, so the job doesn't stall between trades.

  • Straight answers

    We explain where the leak is and your options in plain terms, with the price upfront before work starts.

  • There when it's leaking

    Leaks don't wait for business hours. We answer 24/7 and offer same-day appointments.

How it works

From first call to fixed

  1. Call, text or book online

    Reach us any hour at (562) 416-5779, or send the quick form. A real person gets back to you.

  2. Same-day visit

    A technician arrives prepared, finds the cause and explains what's going on in plain terms.

  3. Upfront price

    You get the price before any work starts. No pressure, and no services you don't need.

  4. Done right

    We fix it the first time, respect your home and stand behind the work.

Service area

Leak Detection across Orange County & LA

Based in Cerritos, we cover Orange County, Los Angeles County and surrounding cities within about 35 miles of our shop, for homes and businesses alike.

  • Garden Grove
  • Seal Beach
  • Cypress
  • Irvine
  • Huntington Beach
  • Anaheim
  • Santa Ana
  • Westminster
  • Fullerton
  • Orange
  • Costa Mesa
  • Long Beach
  • Cerritos

Don't see your city? Call or text (562) 416-5779 and ask.

Blackwell Plumbing technician running a camera inspection at a floor drain
Cerritos shop20104 State Rd, Cerritos, CA

Questions

Leak Detection FAQ

How does Blackwell Plumbing find a hidden leak?

Blackwell Plumbing confirms the leak first, then narrows down where it is before opening anything. In general, plumbers use pressure tests, listening equipment and visual checks to pinpoint a leak; your technician will explain the method they're using at your home.

What is a slab leak?

A slab leak is a leak in a water line that runs under a home's concrete foundation. Common signs are warm spots on the floor, the sound of running water and a rising water bill. Blackwell Plumbing offers slab leak detection and repair across Orange County and LA.

Will you have to break up my floor?

Not always. Blackwell Plumbing locates the leak before cutting anything, and depending on where it is, the fix may be a spot repair or a reroute. When concrete has to be opened, we handle the saw cutting, patching and restoration.

Can I get leak detection at night or on a weekend?

Yes. Blackwell Plumbing offers 24/7 emergency service. If water is actively leaking, shut off the main valve and call (562) 416-5779.

Stop the leak before it spreads.

Leak detection and repair across Orange County and LA, 24/7.

CA License #1139682 · Licensed, bonded & insured · Family owned

(562) 416-5779 Get a Quote