(619) 273-5851
Slab Leak Repair

Slab Leak Repair in San Diego, CA

Fast, Reliable & Safe Electrical Repair Services (619) 273-5851

Trust Mauzy to Get It Fixed Fast and Right

When something’s off in your home’s plumbing, you usually know it. A dripping faucet? Easy fix. A clogged drain? Annoying, but manageable.

But slab leaks? Now those are sneaky—and they can turn into a serious problem fast.

At Mauzy, we’ve been helping San Diego homeowners handle these tricky plumbing issues for over 50 years. If you suspect a slab leak, don’t wait. It’s not just water under the house—it’s a silent threat to your foundation, your budget, and your peace of mind. Luckily, you’ve got us on your side.

Let’s talk about what slab leaks are, how to spot them, and why you’ll want a seasoned San Diego plumbing team like Mauzy’s to handle repairs the right way.

What Is a Slab Leak?

Let’s start with the basics.

A slab leak happens when a water pipe located beneath the concrete foundation (a.k.a. “the slab”) of your home springs a leak. These pipes can be part of your hot water or cold water system, and when one fails, water seeps into the soil or the concrete itself.

Sounds like a small issue, right? Think again.

That hidden leak can cause:

  • Cracks in your foundation
  • Soaring water bills
  • Mold and mildew growth
  • Buckled floors
  • Structural damage to your home

Left untreated, slab leaks are one of the most expensive plumbing disasters a homeowner can face.

A slab leak in a basement.
(619) 273-5851

What Causes a Slab Leak?

San Diego is a beautiful place to live, but our geology and aging housing stock can be a perfect storm for slab leaks. Here are some common culprits:

Shifting Soil: The earth around your home expands and contracts over time, especially during dry spells or after heavy rain. That movement puts stress on underground pipes, which can eventually crack or break.

Corrosion: Older homes often have copper pipes, which can corrode over time—especially if the water supply is slightly acidic or contains minerals that speed up deterioration.

Poor Installation: If the plumbing was installed poorly or the pipes were bent too sharply, they may be more prone to wear and tear.

Water Pressure Issues: High pressure puts added stress on pipes, wearing them out faster.

Abrasion: Pipes can rub against concrete or other materials during normal thermal expansion and contraction. Over time, this can wear them down.

No matter the cause, the result is the same: water flowing where it shouldn’t be, and damage happening before you even notice it.

How to Spot a Slab Leak

Because these leaks happen under your home’s concrete slab, they’re not easy to see. But they do leave clues—some subtle, some glaring. Here’s what to watch for:

  • Sudden spike in your water bill with no obvious reason
  • Warm spots on the floor, especially if they weren’t there before
  • Mildew or mold appearing out of nowhere
  • Low water pressure throughout the house
  • Sound of running water when everything’s turned off
  • Cracks in the foundation or walls
  • Unusual wet or damp spots in flooring or carpets

If you’re nodding your head to any of those signs, it’s time to bring in the pros. Fast action makes all the difference when it comes to slab leak repair.

Mauzy’s Slab Leak Repair Services in San Diego

At Mauzy, we’ve handled hundreds of slab leaks across the county—from beachside homes to inland neighborhoods. We know the signs, the soil, and the systems. And we’ve got the tools and expertise to do the job right.

Here’s how our process works:

1. Leak Detection

We start with precise, non-invasive leak detection. Using advanced equipment like electronic listening devices and infrared thermography, we can pinpoint the exact location of the leak without tearing up your floor.

No guesswork. No unnecessary demolition. Just expert diagnostics.

2. Diagnosis and Options

Once we find the leak, we’ll walk you through your options. Depending on the size, location, and condition of your plumbing system, we may recommend:

  • Spot repair (fixing just the problem area)
  • Pipe rerouting (rerouting pipes through the walls or ceiling to avoid future slab issues)
  • Epoxy pipe coating (lining the interior of pipes when conditions allow)
  • Full repipe (if multiple areas are failing or the system is aging)

We’ll explain the pros and cons of each approach and help you choose what works best for your home and budget.

3. Expert Repair

This is where we shine. Whether it’s a small repair or a full reroute, our certified plumbing team handles the job with precision and care.

We’ll:

  • Carefully access the affected area with as little disruption as possible
  • Repair or reroute the plumbing using high-quality materials
  • Test everything thoroughly before closing up
  • Clean up our work area so your home feels like home again

You can rest easy knowing your home is in good hands.

Why San Diego Homeowners Trust Mauzy

We’ve built our reputation over three generations of plumbing service in San Diego. Here’s what makes Mauzy different:

  • Family-Owned, Local Focus: We’re your neighbors, not a national chain.
  • Straightforward Pricing: No hidden fees. Just honest work at fair prices.
  • Top-Notch Tools & Techniques: We use the latest leak detection and plumbing repair technology.
  • Emergency Service: Slab leak can’t wait? We’re on call 24/7.
  • Warrantied Workmanship: We stand behind everything we do.

We understand how stressful a slab leak can be, and we do everything in our power to make the process as smooth and worry-free as possible.

Preventing Future Slab Leaks

Once you’ve had a slab leak, prevention becomes priority number one. Here are a few smart tips:

  • Install a pressure-reducing valve if your water pressure is too high.
  • Consider a whole-home repipe if your system is aging or showing signs of corrosion.
  • Schedule annual plumbing inspections with Mauzy to catch small issues early.
  • Be mindful of what goes down the drain—avoid harsh chemicals that can damage pipes.

Prevention is always cheaper than repair, and we’re here to help you stay ahead of the game.

What If You Have to Go Through Insurance?

Good question. In many cases, homeowners insurance will cover the damage caused by a slab leak—but not necessarily the cost to fix the plumbing itself.

We’ll help you:

  • Document the issue thoroughly
  • Work with adjusters when needed
  • Provide detailed estimates and reports

You’re not alone in this. We’re happy to help you navigate the claims process and make sure you get the coverage you’re entitled to.

Slab Leaks FAQ – Let’s Answer Your Questions!

  • Can a Slab Leak Cause Health Problems If Neglected?

    Can a Slab Leak Cause Health Problems If Neglected?

    Yes, a slab leak can contribute to significant health risks over time. Moisture trapped beneath your flooring or in walls can lead to mold and mildew growth, which may not always be visible. These fungi release spores into the air that can aggravate allergies and respiratory issues—especially for children, the elderly, or anyone with asthma or a weakened immune system. In severe cases, mold exposure can cause chronic coughing, headaches, or even more serious illnesses. That’s why prompt detection and repair of slab leaks isn’t just about protecting your home—it’s also about safeguarding your family’s health.

  • How Long Does It Take to Repair a Slab Leak?

    How Long Does It Take to Repair a Slab Leak?

    The timeline for slab leak repair depends on several factors, including the leak’s location, the extent of the damage, and the chosen repair method. A straightforward spot repair might be completed in a single day. However, rerouting plumbing or performing a full repipe could take two to four days, especially if multiple systems are affected. Mauzy’s team always aims to minimize downtime and disruption. We’ll provide a clear timeline before starting any work so you know exactly what to expect and can plan accordingly.

  • Will the Slab Leak Detection Procedure Damage My Floors or House Foundation?

    Will the Slab Leak Detection Procedure Damage My Floors or House Foundation?

    Modern slab leak detection is typically non-invasive and won’t require tearing up floors just to locate the problem. At Mauzy, we use advanced tools like acoustic sensors, infrared cameras, and thermal imaging to find the leak with precision. These technologies allow us to detect subtle changes in temperature, sound, and moisture without drilling or demolition. If access is needed, we’ll use minimal-impact methods to reach the affected area only after the leak has been pinpointed—reducing mess, cost, and time.

  • Are Slab Leaks More Common in Older Homes?

    Are Slab Leaks More Common in Older Homes?

    Yes, slab leaks tend to occur more frequently in older homes. Properties built several decades ago often have copper or galvanized steel pipes, which are more prone to corrosion and wear. Over time, soil movement, temperature changes, and water chemistry can weaken these aging pipes. In addition, older construction techniques may not have accounted for today’s plumbing best practices, increasing the likelihood of hidden vulnerabilities. If your home is more than 30 years old and hasn’t had a plumbing upgrade, it’s wise to schedule regular inspections.

  • What Is the Difference Between a Slab Leak and a Regular Plumbing Leak?

    What Is the Difference Between a Slab Leak and a Regular Plumbing Leak?

    A regular water leak typically occurs in visible plumbing—like under a sink or behind a wall—making it easier to detect and fix. A slab leak, on the other hand, happens beneath the concrete foundation of your home, where pipes are harder to access. This makes slab leaks more difficult to detect, more damaging over time, and more complex (and costly) to repair. Because they can affect your home’s structure, slab leaks are considered one of the most serious types of plumbing issues and should be addressed as quickly as possible.

Don’t Wait—Call Mauzy Today For All Your Plumbing Leak Repair Needs!

If you’re seeing signs of a slab leak, don’t ignore them. These aren’t the kind of problems that work themselves out. The longer you wait, the more damage it can cause—and the more expensive the fix becomes.

Our team is ready to jump into action with the tools, training, and experience to get your plumbing (and your peace of mind) back on track.

Call us today at (619) 273-5851 to schedule an appointment!

(619) 273-5851

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5

Jushua was the best!!so knowledgeable and friendly .. an asset to your company!!!

5

Nathan inspected my old wall heater. All is well. Technician was polite and respectful. Great rep for Mauzy.

5

knowledgeable, thorough; reassuring; no sales pressure

appreciated his efforts

5

Alex and Chris from Mauzy did a fantastic job installing my new HVAC. They were both polite and efficient working together as a team. Thank you for the positive experience. Big shout out to Edwin in making it happen. Cheers, Vince Sanchez

5

Was provided amazing and excellent customer service. Was notified of anything that needed to be cleaned or maintained.Kylin Was very professional

5

Great service.

5

Just had Evan G from Mauzy do an evaluation on the plumbing on my home. The evaluation could not have been more complete.
Every bit of the plumbing was checked. Yes everything was good to go but if there was an issue Evan with his knowledge would not have missed a thing. At least 2 hours to go through all the plumbing. I recommend every home owner to get the same service. It will save on the long run and if there are minor issues you will be made aware. Evan G was terrific.

5

Kory was great and very thorough , thank you

5

Mouzy is hands above any other plumbing/electrical A/C, firm I’ve used in the past, and since I am 80 years old, I’ve used a heck of a lot of them. They are fair, polite, and knowledgeable. I have no idea what More can think of to describe them.
You’ll be happy with them!

5

James Logsdon was our Tech. He is very professional and lets you know what he will be doing. He kept me informed of everything. He was amazing and I trust him. Best Tech ever.

5

Darren was very through in completing the service maintenance for my heating system. He took numerous photos and explained everything in detail. Thank You Darren!

5

Brandon was our technician, and was great about communicating prior to his arrival with an estimated time to be at our home. He was very pleasant, and explained what services he would be providing. During his visit, he was respectful of our property and kept us informed on progress of the work provided. He left things in order and provided a final update on his analysis of our plumbing. Very impressive service.

5

James is an excellent technician! He sourced the problem and handled the follow up in a professional manner. He clearly explained the issues with our heater. We appreciate his knowledge and courtesy!!! Our heater still under warranty for the part that had failed so no payment was due at this time.

5

Joe Annello was extremely thorough and explained his findings and answered all my questions. He was very professional and on time.

5

Both Darren and Joshua were kind?respectful, informative and gave many options to choose from!

5

Christian is knowledgeable of the job and very professional

5

Joshua was professional and courteous. His detailed description of filtration systems, along with inspection and recommendations for correction of my failed in line water filter were a sell point for the filter I subsequently purchased from Mauzy plumbing. He provided above and beyond service, tightening fixtures and replacing piping and components at no extra charge. He demonstrated how water quality reflected filter performance, which turned out to be what he predicted it would. I was more than satisfied with Joshua’s informed and thorough
service. Thank you.

5

Kory was professional, proactive, courteous, and answered all of our questions regarding heating and air conditioning maintenance.

5

Prompt and well informed. Thank you.

5

Excellent service. Was able to get same day service. The technician, Kory went above and beyond to get my heater repaired in a timely manner. He was very personable and took the time to explain the details of the problem and the repair.

5

Got great service today from Evan G. Yearly inspection on our water heater and routine check on pluming in the house. Fast reliable service and recommendations on future and preventive maintenance. Thank you Evan and Mauzy for great service.

5

Kory was very professional and answered all our questions.

5

Excellent service!

5

I should’ve called Mauzy first! Prior to the call to Mauzy I had 2 companies come out to help me with a plumbing issue I had. Let’s just say it got worse rather than better. Finally, Wilber, an exceptional young man to say the least, came to the rescue! Knowledgeable, efficient, and walked me through every step of the process. Pinpointed the problem and had my plumbing issue resolved. Thank you Mauzy for having exceptional employees that know what they are doing! Will continue my services with Mauzy.

5

Tommy and Alex were totally awesome.

5

Technician Michael Mitman was very professional and helpful. More importantly, he got the job done in an expeditious manner.

5

Mauzy was very professional and did a great job. Especially appreciated Chris and Alejandro’s work.

5

On Time, very friendly and efficient. James is very easy to deal with

5

Thanks Robert for your great service.

5

Just got my new furnace installed. My technicians Chris and Alejandro were quick with removing the old one and installing the new one. Both were very helpful to help me with my thermostats and explain every part of the process with the new furnace. Im completely satisfied with their service.

5

James was very knowledgeable. He fixed the issue 3 others couldn’t

5

Darren Murphy is a super star and a great Ambassador. Keeps the customer informed as to what’s happening. Rates T least 11 stars

5

I highly recommend Mauzy! Their technician Wilber did an amazing job! He was professional from the moment he arrived. He was respectful, knowledgeable and very thorough. He quickly identified the issue and took the time to explain my options clearly. He made sure everything was cleaned up and working perfectly before leaving which made the whole process smooth and stress-free. Definitely recommend this company and highly suggest you request Wilber!

5

Mauzy plumbing installed a tankless water heater for me in February and they did a superb job. The technician from Mauzy who installed my tankless water heater was Franky. I recently had a question about my system and Mauzy immediately sent Franky back to my home to evaluate the situation. He did a thorough analysis and determined that everything is good. I’m sure all of the Mauzy technicians are excellent, but if I ever have a complicated plumbing problem in the future, I would specifically ask for Franky; he is extremely knowledgeable and thorough and I can’t recommend him and Mauzy highly enough.

5

Mike Kesner was great! Professional, knew what to do to check the issue and was efficient in its resolution.

5

Excellent both times. Technicians were knowledgeable and polite. Respectfull of my house. Top notch service.

5

The Mauzy crew did a great job installing our new cooling and heating system. Alejandro, Chris, and Isaac worked all day to complete the work and were very professional. They deserve a free lunch for their efforts.

5

Mauzy’s technician, Christian Perez, was absolutely wonderful. He was very personable, professional, knowledgeable, patient and kind. He described the who, what, where and why in great detail and iI really appreciated all his efforts and guidance. Thank you Christian and Mauzy telephone staff. The ladies were so very helpful, kind and supportive in assisting us and making this happen on my schedule. Appreciate you!!

5

Needed an estimate to run two additional electric outlets for my garage and one in the house. The technician was great and knowledgeable.

5

Knowledgeable person but company prices were very high explained the process very well.
Enjoyed him but price was exorbitant

5

On time. Helpful. Professional

5

Mauzy did an excellent job helping me with a water leak. Our technician, Wilber, was on time, professional, and quickly identified the source of the issue. He completed the repair efficiently and made sure the area he worked in was left spotless. I really appreciated his attention to detail and top-tier service. Highly recommend Mauzy!

5

I couldn’t be happier with the service I received from Wilber! From start to finish, he was professional, on time, and knew his stuff. He quickly diagnosed the issue, explained everything clearly, and completed the repair on time. Attention to detail was great and was very respectful of my home. He made sure everything was clean and working perfectly before leaving.

5

I recently had the pleasure of working with Joe Annello from Mauzy Cooling, Heating, Plumbing, and I cannot say enough about how great the experience was. From start to finish, Joe stood out for his exceptional professionalism and friendly demeanor, making what could have been a stressful situation feel effortless and reassuring. Joe was incredibly thorough in his work, taking the time to carefully assess and diagnose the issue. It was obvious that he takes pride in his work and genuinely cares about providing the best service possible. His attention to detail was truly impressive, and he made sure everything was checked over meticulously before giving his recommendations. What really set Joe apart was his ability to explain everything he found clearly and in a way that was easy to understand. He never rushed through the details or overwhelmed me with technical jargon; instead, he patiently walked me through his findings and the steps needed to resolve the issue. It made me feel confident and informed about the situation, which I really appreciated. Joe’s combination of friendliness, thoroughness, and clear communication truly makes him a standout technician. If you’re looking for someone who is not only skilled but also goes above and beyond to ensure an excellent customer experience, I highly recommend Joe Annello. He represents Mauzy Cooling, Heating, Plumbing in the best possible way and is someone you’d want working on your home!

5

Kylin was very professional in attacking our heating and air conditioning units. In fact he won the battle. Very pleased with how he presented himself and his report. MCC

5

All I can say it was a pleasure working with Evan&Alex and today with Tommy – All I can say is I’m glad I’m part of the Mauzy Family! Tip Top service, completely knowledgeable and addressed ALL problems.

5

Corey Buck checked out our HVAC system today and was quick, thorough and efficient. He was also very courteous and amiable. We appreciate he was on time arriving just after 8 am with a 8-10 am window. Thank you.

5

A water heater breaking & unique older home piping/water pressure situation made what should have been a routine water heater replacement a bit more complex, and Ron, Ryan & Kacey were great in helping us get this quoted and serviced in the same day. I appreciate how communicative Ron was and how flexible Ryan was with our crazy schedules!

5

Chris Sotelo, Alejandro, Eddie and Westin were amazing today. They came to install a new A/C Heater unit and did a great work. They were knowledgeable, careful handling the equipment and did everything in a timely way. Thank you to this crew team!

5

Evan and Alex were a pleasure to work with! Very professional and personable.

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