CSLB Lic. #1085794 Serving Orange County from Fullerton Emergency line open 24/7

Leak Detection in Fullerton, CA

Leak detection for Fullerton homes that finds the source before any wall or floor is opened.

  • CSLB #1085794
  • 5.0 on Google · 329 reviews
  • 24/7 emergency line
Illustration of a So-Cal 1 Plumbing & Rooter service van outside a house at dusk

How leak detection works in Fullerton

We find leaks in slabs, walls, and supply lines in Fullerton with acoustic and electronic equipment, so nothing is opened on a guess.

Older Fullerton homes often have galvanized supply lines, and slab homes from the 1950s through the 1970s are prone to copper corroding under the foundation.

When to call for leak detection

Call when the water bill rises with no change in use, you hear running water with every fixture off, a floor or wall feels warm or damp, mold appears where it should be dry, the meter keeps moving with the water shut off, or flooring turns soft or discolored.

What happens when you call

  1. We diagnose first

    We find the actual cause before recommending any repair.

  2. We quote upfront

    You get a clear price before any work starts.

  3. We fix it right

    The repair is completed and tested before we leave.

  4. We follow up

    If something is not right afterward, call us and we come back.

What Fullerton homeowners should know

Our home city. Housing runs from 1920s craftsman homes to early-2000s developments.

  • Built before 1960Galvanized steel supply lines and cast iron drains. Galvanized rusts from the inside, cutting pressure and discoloring water. Cast iron narrows and eventually collapses. Both are due for replacement.
  • 1960s to 1980sCopper supply lines with cast iron or ABS drains. Copper holds up well but can develop pinhole leaks from hard water.
  • Built after 1990Modern plastic supply and drain lines. More resilient, though pipes under a slab are harder to reach when they leak.

Neighborhoods we serve in Fullerton

Downtown Fullerton, Golden Hills, Sunny Hills, Amerige Heights, Rolling Hills, Coyote Hills, Cal State Fullerton / College Park, Raymond Hills / Lower Raymond Hills, President Homes, Artisan Walk / Santa Fe District, Las Palmas / Las Palmas Hermosa, Orangethorpe / West Fullerton

ZIP codes: 92831, 92832, 92833, 92835

Water hardness

Fullerton's water is very hard. The City of Fullerton publishes the current figure in its annual water quality report. Regular water heater flushing helps, and a softener is worth considering on older copper or galvanized lines.

Leak Detection questions in Fullerton

What Fullerton homeowners most often ask us about leak detection.

How do I know if I have a slab leak in my Fullerton home?

Look for warm spots on the floor, the sound of running water when everything is off, a sudden jump in the water bill, and new cracks in floors or walls near the foundation.

Can you find a leak without cutting into my walls?

Usually, yes. Acoustic and thermal equipment locates the leak from the surface, and the structure is opened only at the confirmed spot.

How long does leak detection take in Fullerton?

Most house calls take one to two hours. Scanning a slab can take a little longer. You get a clear location and diagnosis before any repair starts.

What customers say

★★★★★

Great experience with Miguel and Steven! Fixed my stubborn kitchen sink clog. Very informative and respectful of my home in addressing the issue. Highly recommend!

Greg G.Huntington Beach · Drain Cleaning · Thumbtack review, January 17, 2026

★★★★★

I had an excellent experience with SoCal 1 Plumbing! Eliass came out to clear a blockage in my kitchen line by snaking it through the outside wall clean-out, and everything was done efficiently and with great care. He also installed new tubular drains under my kitchen sink to stop the leaks I’d been dealing with. The work was high-quality, and they even provided a 1-year warranty on parts and labor, which gave me peace of mind. Highly recommend their professional and reliable service!

Jennifer E.Irvine, CA · Drain Cleaning · Google review, November 13, 2025

★★★★★

I had a plumbing issue that needed to be repaired sooner than later. Miguel came out and knew how to fix it immediately. Miguel was professional, friendly and knowledgeable. I won't hesitate to call them in the future.

Denise P.Orange, CA · Yelp review, November 9, 2025

Read more reviews See every review on Google, Yelp, Thumbtack

Need leak detection in Fullerton?

Every job starts with an on-site look and a clear price before any work begins.

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