
Slab Leak Detection
Non-invasive electronic leak detection beneath concrete slabs - saving your home from hidden water damage
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Slab Leak Detection & Repair
Slab leaks are among the most damaging — and hardest to find — plumbing problems a homeowner can face. We use electronic detection equipment to precisely locate leaks beneath your concrete slab without unnecessary excavation, saving you time, money, and the headache of major property disruption. Our slab leak detection team serves Ontario, Chino, and Corona, and throughout Southern California.
- ✓Electronic leak detection - no guesswork
- ✓Spot repair and re-routing options
- ✓Epoxy pipe lining (non-invasive)
- ✓Post-repair pressure testing
- ✓Foundation damage assessment
- ✓Insurance documentation assistance

What We Cover
Services We Provide
Electronic Detection
Using sensitive acoustic and electronic equipment, we pinpoint the exact location of leaks beneath your slab without breaking concrete.
Spot Repair
Once located, we access the leak through a targeted opening, repair the pipe, and restore your floor with minimal disruption.
Re-Routing & Lining
For severely damaged pipes, we offer re-routing through walls or ceilings, or epoxy pipe lining to restore flow without excavation.
Our Promise
Why Choose Regal?
Honest Pricing
Upfront, transparent quotes before any work begins. No hidden fees, no surprises — even in emergencies.
Fast Response
24/7 availability for emergencies. We arrive quickly and work efficiently to minimize damage.
Quality Workmanship
Every job backed by our commitment to premium craftsmanship and lasting results.
Explore
Other Services We Offer
Emergency Plumbing
Rapid-response emergency plumbing for Ontario, CA and surrounding cities - we’re on call around the clock.
Learn More →Drain Cleaning
Professional clearing of kitchen, bathroom, and main sewer line blockages.
Learn More →Sewer Line Repair
Camera inspection, trenchless repair, and full sewer line replacement.
Learn More →Water Heater Services
Installation and repair of tank, tankless, and heat pump water heaters.
Learn More →Hydrojetting
High-pressure water jetting to scour pipe walls and restore full flow.
Learn More →Gas Leak Detection
Licensed gas line detection, repair, and pressure testing for safety.
Learn More →Water Filtration
Whole-home softeners, reverse osmosis, and filtration systems installed.
Learn More →Pipe Repair
Expert pipe repair and replacement for copper, PVC, and galvanized systems.
Learn More →Commercial Plumbing
Full-service commercial plumbing for restaurants, apartments, HOAs, and businesses across Ontario & the Pomona Valley.
Learn More →Service Coverage
Cities We Serve
We provide fast, local plumbing service throughout the Inland Empire.
Know the Signs
Warning Signs You May Have a Slab Leak
Slab leaks rarely announce themselves with a dramatic flood. Instead, they creep up slowly — and the earlier you catch one, the less damage it does. If you notice an unexplained spike in your water bill, that's often the very first red flag. Hearing the faint sound of running water when every fixture is off is another telltale sign homeowners across Ontario report before calling us.
Warm or hot spots on your floor — especially on tile or concrete — usually point to a hot-water line leak beneath the slab. Cracks forming in your walls or baseboards, damp carpet with a musty smell, and a sudden drop in water pressure all suggest something is wrong under the foundation. These issues are particularly common in Chino and surrounding neighborhoods built on expansive clay soil. If any of these signs sound familiar, don't wait — call us for a professional inspection.
Advanced Technology
How We Detect Slab Leaks Without Destroying Your Floor
Gone are the days of jackhammering through your entire foundation just to find a leak. Our slab leak detection Ontario CA team uses a combination of electronic amplification equipment and acoustic listening devices that can hear water escaping from a pipe through inches of concrete. These tools let us narrow the leak location to within a few inches — without removing a single tile.
We also use pressure testing to isolate whether the leak is on a hot or cold water line, and thermal imaging cameras to map temperature differences across your floor. This multi-tool approach means we get it right the first time. The result is a faster diagnosis, a smaller repair area, and far less disruption to your home and daily routine.
Local Conditions
Why Slab Leaks Are Common in the Ontario CA Area
The soil beneath most homes in Ontario and Corona is heavy in clay content. Clay expands when it absorbs water and contracts during dry spells, creating constant movement that stresses the copper pipes running through your concrete slab. Over the years, this back-and-forth shifting leads to pinhole leaks and cracked joints that are invisible from above.
Hard water is another major factor. The high mineral content in the local water supply gradually corrodes copper from the inside out, thinning pipe walls until they fail. If you're dealing with slab leak repair Chino CA or anywhere nearby, there's a good chance hard water played a role. Installing a water filtration or softener system can slow that corrosion and help prevent future leaks from forming in the first place.
Don't Wait
What Happens If You Ignore a Slab Leak
A small slab leak might seem like something you can deal with later — but the damage it causes never stops growing. Water pooling beneath your foundation erodes the supporting soil, and over time that leads to foundation settling, cracked walls, and doors that no longer close properly. The longer the leak runs, the more expensive the structural repairs become.
Beyond the foundation, standing moisture under your home creates ideal conditions for mold and mildew, which can affect your family's health and require costly remediation. Your water bill will keep climbing month after month, and the problem will only get worse. Whether you need slab leak detection Corona CA or anywhere else we serve, the smartest move is to act now. Contact us today for a professional evaluation before a small leak turns into a major repair.
Financing Available — Don't let cost stop you. Learn about financing options.
Common Questions
Frequently Asked Questions
Ask about our current specials when you call.
Suspect a Slab Leak? Act Fast
Early detection saves thousands in foundation and water damage repair
(909) 600-4561Call Now