Expert Leak Detection in Norwalk, CA

Find your local plumber and request service.

4.81 (97469 reviews)

Voted Best Plumbers!

published by Forbes Magazine
Forbes logo

Norwalk may be home to landmarks like the Hargitt House Museum and the beautiful Norwalk Civic Center, but for homeowners here, it’s what’s happening inside the walls that often goes unnoticed…until there’s a problem. Hidden water leaks have a way of creeping in quietly and causing major headaches: warped floors, rising water bills, mysterious mold, or that dreaded musty smell you just can’t trace.

If you think something’s off but can’t quite put your finger on it, Benjamin Franklin Plumbing of Long Beach is here to help. We’ve worked in homes all across Norwalk, from charming older houses on Pioneer Blvd to newer builds near Bloomfield, and we know how to spot trouble before it turns costly. With expert tools and experienced technicians, we’ll find the source, fix it fast, and save you from chasing puddles or paying for damage that could’ve been prevented.

Why Norwalk Homeowners Call Us for Leak Detection

When it comes to water leaks, guessing isn’t good enough. You need fast, accurate answers without tearing your house apart in the process. That’s exactly what we deliver.

At Benjamin Franklin Plumbing of Long Beach, we bring the right mix of high-tech tools and hands-on experience to every Norwalk home we visit. Whether you’ve got a soft spot in your drywall, a spike in your water bill, or a gut feeling something just isn’t right, we’ll track it down and walk you through the fix.

Here’s why locals trust us:

  • Advanced Leak Detection Tools - From thermal imaging to acoustic sensors, we find leaks without the guesswork.
  • Licensed, Background-Checked Plumbers - You get trained pros you can trust in your home.
  • Non-Invasive Techniques - We locate leaks with precision, no unnecessary holes in your walls or floors.
  • Transparent Pricing - You’ll know the cost before we do the work. No hidden fees, ever.
  • Local Know-How - We know Norwalk’s plumbing systems and home styles, so we get in and out efficiently.

Leaks are stressful enough. Our job is to make everything after your call feel simple.

Signs You Might Have a Hidden Leak

Some leaks are loud and obvious, while others quietly cause damage behind the scenes until it’s too late. The tricky ones are often hidden behind walls, under floors, or beneath slabs, slowly wasting water and weakening your home over time.

Here are a few signs that a leak might be lurking out of sight:

  • Your water bill suddenly jumps but your usage hasn’t changed.
  • You hear water running even when everything’s turned off.
  • You notice musty odors or unexplained mold spots.
  • Walls, ceilings, or floors feel damp or are starting to warp or stain.
  • Warm spots on the floor might signal a hot water slab leak.
  • Cracks in your foundation or flooring that seem new or worsening.

If you’re seeing or sensing any of these signs, don’t ignore them. A small leak now can lead to thousands in damage later.

Our Leak Detection Process

Finding a leak shouldn’t feel like a demolition project and with us, it doesn’t. At Benjamin Franklin Plumbing of Long Beach, we use advanced, non-invasive technology to locate leaks with precision. No wild guesses, no tearing up floors just to “take a look.” Our process is designed to save you time, stress, and money, because knowing where the leak is matters just as much as fixing it.

Here’s how it works:

  1. Inspection & Listening - We start by asking the right questions and listening for common clues, including sounds, smells, and pressure drops.
  2. Moisture Mapping - Using moisture meters and thermal cameras, we detect abnormal heat or water patterns behind walls and under floors.
  3. Acoustic Leak Detection - Sensitive equipment helps us zero in on the exact spot where water is escaping, even through concrete.
  4. Clear Diagnosis & Repair Plan - Once we find it, we explain everything: what’s leaking, why it happened, and how we’ll fix it.

We believe in fixing problems at the root, not just patching them up. When we leave, your home will be dry, safe, and leak-free, just the way it should be.

More Than Just Leak Detection: Full Plumbing Services in Norwalk

Leaks might get us in the door, but plumbing is what we do best - every part of it. At Benjamin Franklin Plumbing of Long Beach, we help Norwalk, CA homeowners with everything from everyday repairs to big upgrades. Whether you’re updating your bathroom, dealing with an old water heater, or just tired of that slow drain, we’ve got you covered.

Here are a few of our most requested services:

  • Water Heater Repair & Replacement - Reliable hot water, whenever you need it.
  • Drain Cleaning & Clog Removal - Say goodbye to slow sinks and standing water.
  • Fixture Installation - Faucets, sinks, showers, and toilets installed with care.
  • Sewer Line Services - We diagnose and fix underground sewer issues fast.
  • Re-piping & Water Line Replacement - For homes with aging or corroded plumbing.
  • Water Treatment & Filtration - Cleaner, softer water for your whole home.

No matter the job, we bring the same attention to detail and commitment to quality every time. If water runs through it, we’re on it.

Fast Help for Urgent Leaks in Norwalk

Some leaks take their time. Others feel like a race against the clock. When water starts pooling, walls feel damp, or the ceiling suddenly sags, you need help… fast. While we don’t offer 24/7 service, we do respond quickly during business hours and prioritize urgent leak calls when water damage is on the line.

Our team knows how fast a small drip can turn into a major repair, so we act with urgency. If you call us with a pressing leak concern, we’ll do everything we can to get someone out promptly and take control of the situation before it gets worse.

Don’t wait for damage to spread. If something feels off, it’s worth a call.

We Know Norwalk, CA Homes Inside and Out

Norwalk has a charm all its own with tree-lined neighborhoods, mid-century homes, and a steady mix of new development and old-school character. That variety means no two plumbing systems are quite the same. And after years of working in homes throughout the city, we’ve seen it all.

Whether you live near Holifield Park, close to the walking trails of Norwick’s walking trails, or in the apartments near Norwalk/Santa Fe Springs Metrolink Station, we bring local knowledge to every visit. We understand the quirks of older pipes, the demands of busy households, and how to work fast, without cutting corners.


From small leaks to big fixes, we’re here to keep your home running the way it should.

Check out the service area map below to see where we work in Norwalk, CA and the surrounding neighborhoods.

A map of a city

And take a look at one of Norwalk’s most iconic spots, the DD Johnston-Hargitt House because yes, we’re locals too.

A house with a flag on the front

Learn more about our Long Beach-based plumbers.

Book Now

Emergency Response Plumbing Services

Our Licensed Plumbers Are Prepared, Anytime

When you need plumbing repairs now, we’ll be there. Our 24/7 home plumbers are available to address your emergency plumbing service needs day or night.

Whether you have an emergency burst pipe, a water leak, or an overflowing toilet, we’re here to help. And we don’t just fix the problem, we take preventive measures to stop it from happening again.

See why homeowners love to work with us

Customer Reviews

4.81 (97469 reviews)

Shawn Slatt

Had a sewer line clog up in my basement after hours. I spoke with Paige and she did an amazing job communicating everything. She was in an out in a little over an hour. Absolutely amazing service.

G P

We would like to recognize two employees that are shining examples of this company! When we called for emergency service on Saturday, August 2, 20205, McKenzie (spelling?) was a joy to speak with! Very attentive to our problem and expressed a genuine desire to help us as soon as possible, She kept us updated on a projected service time and all along demonstrating a genuine desire to help us. She provided us a service window of 12 pm to 4 pm. Shortly before 12 pm, McKenzie let us know our service technician was enroute to our residence. A truly professional customer service representative! It was a blessing when Avery Heath arrived a little after 12 pm. We were very happy with the service provided by Avery. He was professional, efficient, technically competent, and took time to explain the service policies and the project costs. We will not hesitate to call Benjamin Franklin Plumbing again whenever we might have a problem.

Helen Wolf

Gage did a great job. Was very friendly. Benjamin Franklin pluming is a great company and you get good and fast service from them. We are very happy with the service we receive when the come out to our home.

Dawn-Johnathan Hebert

Hello, We were visited by Alex and Luke today. It was a joy having them in our Home. They were both extremely professional not to mention two of the most genuinely nice service individuals I have ever met. They were quick to identify the issue and explained throughly what they were doing. From now on I will call Benjamin Franklin Plumbing and request Alex and Luke for any plumbing issues I may have. Sincerely Dawn Hebert

Melissa Moore

Arthur and Joe took great care of us. They were straightforward, prompt, and professional. I think we paid a fair price for the excellent work. Thank you!

A.N. Simpson

They fixed our toilet water flow issue in one visit and let me pay off the bill by credit card. Truly appreciate this local business.

Rob Lynn

Jeff W was very professional and knowledgeable. He went out of his way to make this unfortunate situation much better. He was able to accommodate us the very next day! I would absolutely recommend Benjamin Franklin Heating and Cooling for your plumbing needs!!

Asha U.

No one's perfect, plus my issue was not taken care of. So I didn't give five stars. However Andrew and Benjamin Franklin did a wonderful job of checking all the various places under the kitchen sink, the plumbing. Incluing down in the crawl space. Discussed the options with me.Did not try scare tactics or forcing any issues / work to be done. Explained various options available. Very much appreciate them, good job! Alex did an excellent job of letting us know what was going on and getting it set up so that we can get things taken care of.

Debbie Busch

Our plumber Joe did an awesome job for us completing multiple jobs making sure that everything was as it should be. Ben Franklin Plumbing has been quick to come out and provide service and have done wonderful work

Kyle Hobson

We called Benjamin Franklin Plumbing regarding an issue with a leak. They were able to schedule an appointment for us quickly. Our technician Grayson was professional and very thorough. He worked hard to determine the source of our issue without cutting any corners and provided recommendations to repair the problem. I would highly recommend this company to anyone who is in need of plumbing repair and installation.

Tips from the Experts

ALL PLUMBING TIPS