Slab Leaks

Slab Leak Detection & Repair in San Diego

Permanent Fixes for Under-Slab Pipe Failures, Backed by Nearly 40 Years of Local Experience

A slab leak is a failure in a pressurized water line running beneath your home’s concrete foundation. Because the pipe is buried, water can escape for days or weeks before any surface sign appears. Left unaddressed, that hidden flow erodes soil beneath the foundation, drives water bills sharply upward, and creates conditions for mold growth inside walls and flooring.

Drain Medic / RX Plumbing has been handling slab leak detection and repair in San Diego County since 1986. We’re a women-owned, family-operated company serving residential, commercial, and industrial clients, and our approach is the same on every job: find the actual source of the failure using non-invasive tools, then fix it. We don’t patch problems to buy time. We’re fully licensed, bonded, and insured, and every repair we make is backed by a satisfaction guarantee. If something isn’t right, we come back and fix it. Before we start any work, you receive an upfront flat-rate quote with no surprise hourly charges.

Suspect a slab leak at your property? Call us now at (619) 655-3695 for fast response and an honest assessment.

The Right Care. The Right Service.

Emergency Help Available 24/7
Day or night, our team is ready to handle urgent plumbing and drain issues.
Honest Service Every Time
We provide straightforward recommendations and dependable workmanship you can trust.
Fast, Reliable Response
Our team arrives quickly and works efficiently to restore your plumbing system.
Family-Owned Since 1986
Trusted plumbing and drain solutions backed by decades of hands-on experience.

Warning Signs of a Slab Leak in San Diego Homes

San Diego properties face a combination of conditions that make under-slab pipe failures more common than in many other regions. The local water supply carries high mineral concentrations that corrode copper pipes from the inside over time, creating pinhole leaks. The region’s clay-heavy soil expands and contracts with seasonal moisture changes, placing cyclical stress on rigid pipes beneath foundations. Seismic activity and coastal salt air accelerate pipe wear further. In established neighborhoods like North Park and Hillcrest, many homes still have their original copper supply lines beneath the slab, and those lines are reaching or past the end of their useful service life. The same is true for older sections of Chula Vista and communities across San Diego County.

Because the leak happens below concrete, water can migrate for weeks before it surfaces. Recognizing the early signs matters.

Common warning signs to watch for:

Unexplained spike in your water bill with no change in household usage
Warm, damp, or discolored spots on tile or concrete floors
The sound of running water when every fixture in the home is off
Low water pressure in specific zones of the home
Musty odor near floor level, which can indicate moisture trapped beneath flooring
New or widening cracks in walls or flooring without an obvious cause

How Slab Leak Detection & Repair Works

No concrete should be opened until the leak is precisely located. We use non-invasive detection methods to confirm exactly where the failure is before any flooring or slab is touched. Acoustic listening equipment amplifies the sound of escaping water through concrete. Thermal imaging identifies temperature anomalies along hot-water lines that have lost pressure. Pressure testing isolates which line is failing and pinpoints the zone of failure. Combining these methods means the repair is targeted, not exploratory, which directly limits the amount of concrete and flooring that needs to be disturbed.

Once the leak is confirmed, the right repair path depends on pipe age, overall condition, and location beneath the slab. Three options are common:

Spot Repair

We open the concrete at the confirmed leak location, replace the damaged pipe section, and restore the slab. This is the right call when the pipe is otherwise in good condition and the failure is isolated.

Pipe Rerouting

The failing under-slab line is abandoned and a new line is run through walls or ceilings. For homes with older corroded copper lines, rerouting is often the better long-term choice. It removes the vulnerable pipe from beneath the slab entirely, reducing future access issues. Our experience rerouting underground lines on commercial and industrial sites translates directly to this work on residential properties.

Epoxy Pipe Lining for Drain Lines

For drain lines rather than pressurized supply lines, a structural epoxy lining can be applied inside the existing pipe without excavation. This restores the line from within and avoids opening the slab altogether.

Some homeowners insurance policies cover damage caused by slab leaks when the cause is sudden and accidental. Coverage for the cost of accessing the pipe varies by policy, and most standard policies don’t cover repairing the broken pipe itself. It’s worth reviewing your policy before work begins so you know what to expect.

5-Star Service You Can Feel Good About

Honest Plumbing Care From A Team You Can Trust

We believe great service starts with clear communication, dependable repairs, and treating every customer like family.

I Will Definitely Call On Them to Schedule Future Plumbing Services!
“Omar who came out was very helpful and patient. We couldn’t be more pleased with the service. I will definitely call on them to schedule future plumbing services.”

- Carolyn R.
Very Experienced and Professional!
“They installed both with no issues and then just recently used them to clear a drain with no hidden costs. Very experienced and professional. This will be my only plumber.”

- Chase V.
Great Experience with Drain Medic!
“I don't understand the low reviews, because we just had a great experience with Drain Medic. Even being out of our area, they were at our house quick and took care of the problem.”

- Shauna S.
This Company was Amazing!
“After a horrible experience with another company, this company was amazing. The two employees who came were very friendly and professional.”

- Monica M.
Very Impressed with Drain Medic!
“I was very impressed with Drain Medic. I used them to remove & install a new grease trap at my business, which also included hydro jetting of my pipes among a few other things.”

- Megan L.

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Why San Diego Homeowners Call Drain Medic / RX Plumbing for Slab Leaks

A slab leak isn’t the job for a company that only handles basic drain calls. It requires accurate diagnostic equipment, knowledge of how local infrastructure ages, and the repair capability to do the job correctly. Here’s what we bring to it.

Nearly 40 Years in San Diego
We’ve been working in San Diego County since 1986. We know how homes in North Park, Hillcrest, Chula Vista, and surrounding communities were built, what materials were used, and where failure points tend to develop as those systems age.

Industrial-Grade Diagnostics on Every Job
Because we manage large commercial and industrial plumbing systems, the diagnostic standard we apply to a residential slab leak goes well beyond what a standard rooter company brings. High-resolution cameras and advanced detection equipment are on our trucks as standard, not add-ons.

Trenchless & Rerouting Capability
When the right solution is abandoning a corroded under-slab line and rerouting, we have the equipment and field experience to do it cleanly. We handle trenchless sewer and drain repairs regularly, and that capability carries over directly to slab leak rerouting work.

Women-Owned, Family-Operated Accountability
We’re not a franchise call center dispatching subcontractors. You get a local team that stands behind its work, communicates clearly, and treats your home with care. Our crew wears protective boot covers inside and leaves the work area cleaned up.

Upfront Pricing and a Satisfaction Guarantee
You receive a flat-rate quote before any work starts. No hourly surprises. And if the repair doesn’t hold up, we come back and make it right.

Get Your Slab Leak Diagnosed Today

The sooner a slab leak is located and repaired, the less water can migrate beneath your foundation. We respond quickly, including for urgent situations that can’t wait. Call Drain Medic / RX Plumbing at (619) 655-3695 for an upfront quote and a lasting fix, not a temporary patch.

What to Do If You Suspect a Slab Leak

Acting quickly before the plumber arrives can limit how far water spreads and reduce the overall scope of the repair. Here’s what to do:

Turn Off the Main Water Supply
Shutting off the main valve stops water from continuing to flow through the leaking line. This limits further migration into soil, flooring, and wall cavities.

Document What You See
Photograph any discolored flooring, warm spots, damp areas, or new cracks. This record is useful both for the plumber and for any insurance claim.

Check the Water Meter
With every fixture in the house off, watch the water meter dial. If it’s spinning or showing movement, water is actively escaping somewhere in the system.

Don’t Open the Floor Yourself
Attempting to locate the pipe without professional detection equipment widens the damage and increases repair cost. Precise location comes first.

The longer a slab leak runs, the more water migrates beneath flooring, into surrounding soil, and potentially into wall cavities. Homes built before 1990 are most likely to have copper supply lines beneath the slab. In areas with heavy clay soil or close proximity to the coast, the compounding effects of soil movement and salt-air corrosion mean conditions can deteriorate faster than elsewhere.

Consistently high water pressure also accelerates pipe wear at joints and bends beneath the slab. A pressure regulator can reduce long-term stress on those lines. After a slab leak repair, we recommend assessing the surrounding plumbing to identify any other sections of aging pipe that present near-term risk.