San Diego Residential Bathroom Plumbing

Slab Leak Repair in San Diego, CA

Water beneath a concrete foundation can remain hidden until you notice warm flooring, unexplained moisture, reduced water pressure, or a rising water bill. Solid Plumbing & Drains locates under-slab plumbing leaks, identifies the affected line, and explains the most practical repair or rerouting option for your property.

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Find and Repair Leaks Beneath the Foundation

A slab leak occurs when a water line beneath or inside a concrete foundation develops a hole, split, failed fitting, or damaged connection. Because the pipe is concealed, water can travel beneath flooring or through surrounding materials before the source becomes visible.

Solid Plumbing & Drains uses targeted diagnostic methods to narrow down the affected line and determine whether direct repair, pipe rerouting, or replacement is the better option.

Slab leak services we provide

Under-slab leak detection
Hot and cold water-line testing
Plumbing pressure testing
Leak isolation
Electronic listening and detection
Thermal imaging when appropriate
Water-meter evaluation
Direct-access slab repair
Damaged pipe-section replacement
Water-line rerouting
Partial repiping
Whole-property repiping
Pressure regulator evaluation

Could Water Be Leaking Beneath Your Slab?

Slab leaks do not always produce visible standing water. Small changes in flooring, plumbing performance, or water usage can be early signs of an underground problem.

Signs that could indicate a slab leak

A section of flooring feels warm

A warm spot can develop when hot water escapes from a pipe beneath the foundation. The temperature difference might be easier to notice on tile, concrete, or hard-surface flooring.

Water appears along a floor or wall

Moisture near baseboards, cabinets, flooring seams, or lower wall areas could be traveling from a concealed plumbing leak.

The water bill increased unexpectedly

A leaking supply line can continue using water even when no fixtures are running, leading to an unexplained increase in monthly consumption.

Water pressure has decreased

A damaged water line can reduce the amount of pressure reaching faucets, showers, and other fixtures.

You hear water when fixtures are off

Hissing, spraying, or running-water sounds beneath the floor can indicate that a pressurized line is leaking.

Practical Answers for a Hidden Plumbing Problem

A slab leak can be stressful because the damaged pipe is out of sight. Our job is to explain what the testing shows and help you compare the available solutions.

Targeted leak detection

We use diagnostic information to narrow down the affected line and reduce unnecessary exploratory work.

Clear repair recommendations

Our plumbers explain why a particular repair, rerouting, or repiping option is being recommended.

Experience with different pipe materials

We work with copper, PEX, galvanized plumbing, and other materials found in San Diego properties.

Residential and commercial capabilities

We assist homeowners, landlords, HOA managers, apartment communities, restaurants, offices, and other commercial facilities.

What San Diego Customers Say About Our Plumbing Service

(⭐412+) Google & Yelp Reviews

Excellent rating
Based on 154 reviews

The tech was prompt and did excellent work.

Michael Jones

I had solid plumbing & drains come out to make some repairs on the drains for both my toilets and replaced my outdated laundry box that was not working. The techs Emmanuel and Mario were so professional, fast, and knew exactly what the problem was. They even went the extra mile and hooked up my washer and dryer once they finished the repairs. Everything works perfectly now. Solid service, fair pricing, and real attention to detail. I’d highly recommend them.

Elizabeth Hernandez

I needed a plumber to take care of a main line back-up on a Saturday. The team responded promptly, was very professional, and took care of the issue all in one visit. Thank you!

Jennifer French

I had some landscape drain problems. Had one of the TV big company over and they essentially said they needed to bust up my concrete patio etc etc and they would not touch a lateral drain. Got in touch with Mario and had a great conversation with him on the problem. He came over with his crew Emanuel and Angel. Mario diagnosed the issue and created a plan of attack. The main drain line was full of roots but he got them and the issue if FIXED. They were pleasant to deal with, very professional and did a great job. I will definitely go back to them for any further inside or outside plumbing problem! Thank you Mario!

Joe Vaccaro

Great service. Quick response and reasonable prices.

Nance Lakdawala

Mario and his crew were extremely professional and very thorough during their job. We had sewage back ups and burst pipes and they worked quickly to get the job done. I would 100% recommend Mario to anyone with plumbing concerns.

Brent Teraoka

I loved the quick response. Even though I paid more than I think is reasonable I will use them again for their professionalism and quality of work.

Jill Eastin

Solid Company & Drains Representatives reported as scheduled and came with an attitude of getting the job done. They secured their ladder, hopped up in the attic and within 5 minutes Mario had determined the problem. He took pictures of the area and sent them to me on my phone. He explained each photo. Incredible! Additionally, he suggested that I get a specialty company to use special tools to determine if there is additional water damage in the wall area that they could not see. I really appreciated that suggestion. Thanks to Mario and Angel for their professionalism, friendly attitude, and great plumbing skills!

Claudette Lobbins

Excellent rating
Based on 131 reviews

Emmanuel and Angelo are the best team! They showed up at my house in El Cajon within 30 minutes of calling. We had been dealing with this issue for almost a year, and they were the first ones to actually figure it out. They ran a camera down the drain, found the clog right away, cut out the damaged pipe, and replaced everything properly. Great pricing, super professional, and easy to work with. Highly recommend Solid Plumbing & Drains!

David W.

i hired Mario and his crew (Emmanuel and Angel) today for a landscape drain issue after turning away one of the big TV companies that essentially refused the work. Mario showed up on time, reasonably diagnosed the issue and made a game plan. In the end he was able to clear the problem! They left the job clean. very professional and job well done! thank you!!!

J V.

Mario arrived before he said he would. Pleasant & knowledgeable. Daniel assisted, and they resolved the blockage. Very grateful; highly recommend this company!!!

Linda A.

I had a patio drain that was very sluggish. Mario and Angel came and took 2 hours unblocking a mountain of mud from down the line. They were professional, resourceful using multiple pieces of equipment and persistent working till the blockage finally gave way.They also had to go through my house to get to drain and they were very neat laying down plastic to protect my floors. I am a very happy and highly recommend them.

M R.

Mario talked a good game, and the job got done. I am not sure I got the best value, but that's partially my fault, in that I was motivated to get an emergency solved ASAP, and so I only got one bid -- from Solid. I would have felt a lot more comfortable if Solid could have provided a line item invoice, so I could see what I was being charged for each task. Mario claimed that they're somehow not allowed to provide that information. There were a few less-than-stellar incidents along the way, causing delays and inconvenience. These seemed to be caused by inadequate attention to detail, perhaps due to Solid being "spread too thin". But the job did finally get done.

Russ S.

We have used Solid Plumbing & Drains for multiple projects at our property and we have been extremely happy with their quality of work! Mario is very knowledgeable and a great guy to work with. He and his team really care about doing a good job and satisfying their clients. Highly recommend this company!

Maria M.

Mario was right on time and took care of the problem quickly, efficiently, and cleanly!

Loli W.

Such a great company to work with. They truly help out and are very patient and knowledgeable. I love that they also answer right away and are willing to go the extra mile.

David M.

They responded very fast! Great job! Very professional! Reasonable pricing! Highly recommend!

Aaron H.

We had a leaky copper water line in the attic, dripping through ceiling drywall late on a hot Friday afternoon. We contacted Solid Plumbing & Drains through the Yelp website. We appreciated Mario, the owner, quickly responding by phone and that he arrived with his assistant about an hour later. Mario replaced a short length of the leaking water line, charging $658. So far so good. But Mario said and did several things which caused me to no longer trust him. (1) When he gave me the initial price of $750, he said there were actually two leaky fittings (showed me photos) but the next morning I saw he only made one repair; apparently there was really only one leaky joint. (2) His written estimate said he would make solder joints per code, but then he mentioned he would use a "pro press", which I Googled and found out is essentially a crimped connection which is faster and easier for the plumber. When I told him I wanted conventional soldered joints, he resisted and tried to talk me into the pro press. When I insisted on soldered joints, he said he would need a "change order" to charge more money. I pointed out that his written estimate called for solder joints; he said the estimate was AI generated and it should have said pro press. So after a rather lengthy discussion Mario agreed to do the job with soldered joints, and it looks like he did a good job. (3) He told me his work is guaranteed for one year; but his invoice (received by email hours later) had a link to "terms and conditions", which state that his work is only guaranteed for 90 days. (4) When he first described what he had found in the attic (as he quoted me an initial price of $750) he said the leaks had been going on for some time with damage to a wood beam, and that he would refer me to a remediation company. But at the end (after our disagreement on method of repair) I asked him about the possible beam damage, and he acted like he had never said any such thing.

Rick E.

Slab Leak Repair Across San Diego

We provide under-slab leak detection and repair for homes, rental properties, multifamily communities, and commercial buildings throughout San Diego.

Areas We Serve in San Diego

Downtown San Diego, North Park, Hillcrest, Mission Hills, Clairemont, Mission Valley, Tierrasanta, Point Loma, Ocean Beach, Pacific Beach, La Jolla, University City, Mira Mesa, Scripps Ranch, Rancho Peñasquitos, Rancho Bernardo, San Carlos, Del Cerro

Under-Slab Plumbing Solutions for Different Properties

Slab leaks can affect small homes, large multifamily systems, and commercial properties differently. The inspection and repair plan should account for how the building is occupied and which fixtures depend on the affected line.

Residential properties

Single-family homes
Condominiums
Townhomes
Duplexes
Rental properties

Commercial properties

Apartment communities
Restaurants
Retail properties
Offices
Hospitality facilities

Slab Leak Resources for San Diego Property Owners

These guides, public resources, and related services can help you understand hidden water leaks, water usage, plumbing pressure, and possible repairs.

Helpful Guides

Local and Environmental Resources

Related Plumbing Services in Chula Vista

Slab Leak Repair FAQS for San Diego Properties

How do I know whether I have a slab leak?

Warm flooring, unexplained moisture, running-water sounds, reduced pressure, meter movement, and unusually high water bills can indicate a concealed leak. Testing is needed because other plumbing problems can create similar symptoms.

Can a slab leak be repaired without breaking the floor?

Sometimes. A leaking line can potentially be rerouted through a wall, ceiling, attic, or another accessible area. Whether rerouting is practical depends on the affected line and property layout.

How long does slab leak repair take?

The schedule depends on the time needed to locate the leak, the selected repair method, accessibility, pipe material, and whether concrete or finished surfaces must be opened. We provide a clearer timeline after the inspection.

Does a slab leak mean I need to repipe the entire property?

No. An isolated failure could require only a direct repair or rerouted line. Complete repiping is generally considered when inspections reveal widespread deterioration or a history of repeated leaks.

Can high water pressure contribute to slab leaks?

Yes. Excessive pressure can place added stress on pipes, fittings, valves, and connections. Testing the property’s water pressure can help determine whether pressure correction should be part of the repair plan.