Slab Leak Repair in San Diego, CA

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.

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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!