Johns Coupon for slab leak


John’s Plumbing & Drain Services uses state-of-the-art, non-invasive water leak detection services and CO2 Pressure testing to accurately pinpoint leaks and determine the ideal solution for repair or repiping. 

We can perform water leak detection for residential and commercial customers and help to identify potential issues that may lead to flooding, such as excessive water pressure. We have more than 10 years of experience in water leak detection services in Los Angeles, CA and the surrounding areas and can diagnose water leaks quickly and make the ideal repair.  

When You Need Fast Water Leak Detection 

If water leaks are not addressed quickly, they can lead to structural property damage, floods and water damage, as well as hazardous mold growth. Mold only requires a small amount of moisture to flourish, so even small leaks can lead to costly remediation needs. 

Understanding the common signs of a water leak is crucial to immediate detection to help you avoid damages to your home and potential health issues form mold. 

Common Signs You Have A Water Leak

Some signs of leaks are easy to spot, such as active water or moisture, but many water leaks happen behind walls or underneath the slab foundation. Hidden water leaks can go undetected for long periods of time leading to extensive damage, as well as high water bills. 

Common signs of water leaks include: 

  • Excessive Water Bills
  • Discoloration or Water Stains on Ceilings and Walls
  • Mildew or Musty Odors
  • Fluctuation or Loss of Water Pressure
  • Damp or Warm Spots on Flooring
  • Water Pooling in Yards 
  • Corrosion on Plumbing Fixtures

Water Leak detection services

Professional, Reliable, Experienced Water Leak Detection Los Angeles, CA  

At the first sign of a water leak, call the experienced leak detection specialists at John’s Plumbing & Drain Services. Once our team is on site, we will assess the situation and determine the next best steps. We ensure your home is protected at all times and use only safe and proper water leak detection methods. 

We can perform pressure testing to identify leaking lines behind walls, electronic leak location for slab leaks under the foundation, and identify the cause of leaks. If the home has weakened pipes or excessive water pressure, we will make recommendations to repair the leak and upgrade the plumbing to prevent future problems. 

Preventing water leaks is not always possible, but we can help home and business owners to properly maintain water systems and educate on what to look for in potential water system dangers.

Once we have identified the leak, we will offer solutions for repair including direct repair of the leaking pipes, rerouting the leaking lines, or repiping the entire water system. We offer convenient scheduling, as well as 24 hour emergency services to help you when you need it most. 

John’s Plumbing & Drain Services has more than 10 years of experience in diagnosing and troubleshooting even the trickiest water leaks. We can find and repair leaks on the interior of the home, underground leaks, and exterior property leaks and we are committed to exceptional customer service.  

For professional and expert water leak detection in Los Angeles, CA and the surrounding areas, call John’s Plumbing & Drain Services today (323) 422-7485.

Water Leak Detection FAQ’s

How long can a water leak go undetected?

A water leak can go undetected for a varying amount of time, depending on the location of the leak and the extent of the damage. Some leaks may be visible and easy to detect, while others may be hidden and go undetected for a longer period of time.

In general, leaks that are visible and readily accessible, such as a leaking faucet or a visible pipe leak, are more likely to be detected and repaired quickly. Leaks that are hidden or hard to access, such as a leak within a wall or beneath a slab foundation, may go undetected for a longer period of time, as they may not be easily visible and may not produce any visible signs of a problem.

It is important to be vigilant for signs of a water leak, such as water stains on walls or ceilings, the sound of running water, or an unexplained increase in water bills. If you notice any of these signs, it is important to contact a plumbing professional to diagnose the problem and determine the appropriate repair method. Ignoring a water leak can lead to extensive water damage and costly repairs, as well as an increased risk of mold and other types of damage.

How accurate is leak detection?

Leak detection is a process that involves using specialized equipment and techniques to locate and diagnose problems with water pipes, sewer lines, and other types of plumbing systems. Leak detection can be a highly accurate and effective way to identify and repair problems with plumbing systems, and can help to minimize the risk of water damage and costly repairs.

The accuracy of leak detection can vary depending on the type of equipment and techniques used, the experience and expertise of the technician performing the detection, and the specific circumstances of the leak. In general, leak detection is more accurate when performed by a skilled and experienced technician using high-quality equipment, as they are better able to interpret the data and accurately locate the source of the leak.

It is important to note that no leak detection method is 100% accurate, and there is always some level of uncertainty involved in the process. However, with the right equipment and expertise, leak detection can be a highly effective tool for identifying and repairing problems with plumbing systems. It is generally a good idea to consult with a plumbing professional to determine the appropriate leak detection method for your specific situation.

How long does a leak detection take?

The length of time it takes to perform a leak detection can vary depending on the type and extent of the problem, the location of the pipes, and the equipment and techniques being used.

In general, simple leak detections, such as those involving a single visible pipe or a small area of concern, may take a few hours to complete. More extensive leak detections, such as those involving a larger area or multiple pipes, may take several days to complete.

It is important to note that the leak detection process may be disrupted by factors such as weather, the availability of equipment and materials, and the need to obtain necessary permits. In addition, the leak detection process may require the temporary shutdown of water or sewage service to the affected area, which can impact the duration of the detection.

It is generally a good idea to consult with a plumbing professional to determine the appropriate leak detection method for your specific situation and to get an estimated timeline for the process.

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Our water heater began spewing water this morning.  John was the first plumber in the area to answer my call, and was able to get to my house within 10 minutes of the call.  He fixed the problem promptly and for what seemed to be a reasonable price.  He was friendly and informative.  I will definitely call John again and will recommend him to neighbors.  Thanks, John!
-Caitlin R


John has done numerous plumbing projects around my house and has always done excellent work.  He's quick to respond to my inquiry's and even replaced my water heater on a Sunday.  Most recently, I had him install a water purification system and new faucet.  His prices are reasonable and he will continue to be my go-to plumber.
-Rachel R.

Very helpful guy, thank you for the quick service and low service fee 🙂 Job well done.
-Sandra F.


These guys are the best! If you're looking for a legit plumber, call John's Plumbing & Drain Services in Atwater Village. Fairest price, honest and very knowledgeable!
-Ashley C.

Project: Install a Tankless Water Heater System

Comments: john and company were very efficient. they took their time and got the job done right. they replaced my standard water heater with a rinnai tankless water heater. while they were here, I also had them install a earthquake shut-off valve. great job at a reasonable price. I am keeping john as our regular plumber for the future.
Sergio S. in La Crescenta, CA

Project: Install, Repair or Replace Plumbing or Fixtures

Comments: My tenant is happy so I am happy. John was very patient with me and explained everything before he did the job. Very nice over the phone and I will use him again for future plumbing needs.

 Marilyn L. in Pasadena, CA

Project: Install, Repair or Replace Plumbing or Fixtures

Comments: I am very pleased. I've had John do the top priority job of repairing a leaking drainpipe and his work looks to be top notch. I'm definitely thinking of using him for the larger job of repiping the whole house (replacing the failing M-type copper with L-type). And again, John's bid is within my budget considerations. Highly recommended.

Homeowner in Glendale, CA

Project: Install or Replace a Water Heater

Comments: John was great. He gave me options and worked with me to find a solution that worked within my budget. Very professional. I will definitely use him again for any plumbing issues.

Laura W. in South Pasadena, CA

Project: Install or Replace a Water Heater

Comments: John was very responsive to my initial call, showed upon time and did excellent work at a fair price to replace my water heater. I highly recommend him and I plan to use him for future plumbing needs

Gary P. in Sherman Oaks, CA

Camera Locate Breakage for a Plumbing System

Comments: We had them run a snake from our sewer line out to the street, as we have lots of trees with roots that sometimes get into the line. They came as scheduled, did a great job and the price was as quoted.

Colleen L. in Pasadena, CA


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John's Plumbing & Drain Services

3847 Brunswick Avenue, LA, Ca, 90039

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