Slab Leak Repair in Ontario, CA
If you suspect a slab leak in your Ontario, CA home, act fast. Our team at FKM Plumbing offers skilled detection and repair services to protect your foundation.
- Reroutes in PEX or Copper
- Southern California-Trained Plumbers
- Expert Foundation Repair
- Expert Foundation Protection
Hear Water Under the Floor? Get Slab Leak Repair in Ontario, CA.
We locate the leak to within inches, so any concrete we open is small and right on target.
Skilled Slab Leak Repair Services in Ontario, CA
FKM Plumbing focuses on detecting and repairing slab leaks, a common but serious problem for homes in Ontario, CA. These leaks, often hidden beneath your concrete foundation, can lead to significant structural damage, increased water bills, and mold growth if not fixed promptly. Our team uses specialized tools like acoustic leak detectors and thermal imaging to pinpoint the exact location of the leak without unnecessary demolition.
Our expertise includes:
- Sewer line and water line slab leak repairs.
- Acoustic and thermal pinpointing to limit concrete cutting
- Careful concrete cutting and restoration.

Additional Plumbing Repair Services in Ontario, CA
We offer expert plumbing repair services across Ontario, CA to fix leaks, restore flow, and keep your system running smoothly.

Customers
Why Choose FKM Plumbing for Slab Leak Repair in Ontario, CA?
A slab leak runs around the clock, wasting water, raising your bill and soaking the soil under your home. The sooner it is fixed, the less damage it causes.
- Clear Comparisons, You see the cost of spot repair and reroute side by side.
- Lasting Repairs, We focus on durable repair methods, from direct slab penetration to pipe rerouting, so your plumbing holds up.
- Advanced Tools, Our technicians use modern leak detection equipment to find hidden leaks with minimal disruption.
Citywide Coverage
FKM Plumbing serves every neighborhood of Ontario, offering prompt and professional slab leak repair services. We understand that a slab leak needs immediate attention, no matter where you are located in the area.
Experienced Team
Each plumber on our team completes ongoing training on the latest leak detection and repair techniques, so they can tackle even the most complex slab leaks with precision and confidence.
Safety-First Approach
We take careful measure to prevent further damage during the repair process, including proper shoring and backfilling, and always leave your property clean and secure after the work is complete.
Trusted Certified Ontario Plumbing Services Professionals
At FKM Plumbing, we take pride in providing licensed, certified plumbing services throughout Ontario, CA. Backed by recognized industry credentials, our experienced plumbers combine technical skill with genuine customer care. Whether it is repair, installation, or maintenance, we follow strict safety and quality standards to deliver lasting results you can trust.
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PHCC Plumbing Contractor Recognition
Better Business Bureau (BBB) Accreditation
Angi Certified Pro
ISO 9001 Quality Management CertificationTrusted Slab Leak Repair Services in Ontario, CA
PEX Repiping for Slab Leaks in Ontario, CA
If multiple slab leaks indicate a systemic issue with your home's original plumbing, a full PEX repipe might be the most cost-effective and durable solution. PEX tubing is flexible, corrosion-resistant, and less prone to leaks caused by foundation shifts, making it a good choice for many homes. We can replace all the water supply lines in your Ontario home, providing a brand-new, leak-free plumbing system that will last for decades.

Advanced Leak Detection Technology in Ontario
Our approach to effective slab leak repair includes investing in modern diagnostic technology. We use equipment such as thermal imaging cameras to detect temperature changes caused by leaking hot water lines, and highly sensitive acoustic sensors to listen for the sound of escaping water. This technology lets us locate leaks without guesswork, even in the varied mix of buildings across Ontario.
Slab Leak Repair Cost Comparison in Ontario, CA
Spot repairs usually have a lower upfront cost but involve breaking concrete and repairing flooring. Reroutes cost somewhat more but avoid concrete work and future leaks in that line. Whole-house repipes are the best choice when you have had multiple slab leaks or old copper throughout. We give you clear prices for each option.
Slab Leak Detection in Ontario
We start by shutting off fixtures and watching the meter to confirm a leak. Then we isolate the hot and cold lines to find out which one is leaking. Using acoustic ground microphones, we listen for the sound of escaping water through the concrete. Thermal imaging shows hot water leaks as warm areas on the floor surface.
Cold Water Slab Leak Repair in Ontario
Cold water slab leaks are harder to feel but still waste water and wet the soil. They often show up as a high water bill or a meter that moves with all fixtures off. We isolate the cold line, locate the leak and repair or reroute it. Fixing cold leaks promptly helps protect your foundation.
Pipe Rerouting and Repiping in Ontario
For more extensive damage, multiple leaks, or pipes that are too old and corroded to repair reliably, pipe rerouting is a long-term solution. This involves abandoning the leaking line under the slab and installing a new pipe through the walls or attic. This method bypasses the problem area entirely, providing a fresh, durable plumbing line. It is a common solution for aging homes in Ontario with original copper or galvanized plumbing.
Hot Water Slab Leak Repair in Ontario, CA
Hot water lines leak under slabs more often than cold lines because heat expands and contracts the pipe against concrete and gravel. Mineral scale and constant recirculation can wear the pipe wall faster. We repair the leak or reroute the hot line, and we can adjust recirculation pumps to limit wear. Warm floors and higher gas or electric bills are common signs.

Spot Repair Through the Slab in Ontario, CA
When the leak is isolated and the rest of the pipe is in good shape, a spot repair through the slab is a practical option. We cut a small opening, dig down to the pipe and replace the damaged section. The trench is compacted and the concrete is patched. Flooring is then restored by your preferred contractor.
Slab Leak Repair Near Me in Ontario, CA
If you are searching for slab leak repair near me, you probably have a warm floor, a high bill or the sound of running water. Our local technicians respond quickly with detection equipment. We find the leak and explain your options.
When you need fast and reliable slab leak repair near me in Ontario, CA, FKM Plumbing is your local expert. Our well-placed teams respond quickly to your call, minimizing water damage and protecting your foundation. We are committed to serving our community with integrity and quality plumbing solutions.
FKM Plumbing at a Glance
- Fully licensed plumbing team covering Ontario, CA
- 24/7 emergency service with same-day scheduling
- Upfront, flat-rate pricing before work begins
- 4.8-star rated by 754+ Southern California customers
Ontario Map
Ontario Information
- Population
- 182,457
- Area codes
- 909/951/626
- Service area
- Ontario and communities within 40 miles
- Nearby
- Chino, Eastvale, Upland, Rancho Cucamonga
Slab leaks in Ontario, CA need quick attention because moving soil can put real pressure on underground pipes, which makes expert detection and repair crucial to protect your home's foundation.
Expert Services
Trust our professionals for reliable FKM Plumbing solutions in Ontario, CA.
Our Specialized Plumbing Services in Ontario, CA
At FKM Plumbing, we provide a complete range of plumbing services across Ontario, CA. From leak detection to full system installations, our team ensures fast, precise, and affordable service for both residential and commercial properties. Explore our core services below:
How Our Slab Leak Repair Process Works in Ontario, CA
Our slab leak repair process is designed for efficiency and minimal disruption, so your Ontario, CA home is protected fast.
Request a Quote
Call (213) 871-0701 and tell us what you are noticing, such as warm floors, a high bill or running water sounds. We schedule detection quickly.
Locate the Leak
We isolate lines, pressure test and pinpoint the leak with acoustic and thermal tools. Then we explain repair and reroute options with prices.
Repair or Reroute
We complete the chosen repair and pressure test the system. We patch concrete or drywall openings and confirm the leak is fixed.
Frequently Asked Questions About Slab Leak Repair in Ontario
The cost of slab leak repair in Ontario can range from $500 for a simple, accessible repair to $5,000 or more for complex rerouting or extensive repiping. Factors include leak location, pipe type, repair method, and necessary restoration work. We provide a detailed estimate after our initial leak detection.
Warm spots on the floor, damp carpet, cracks in tile, mildew odors, the sound of running water and a water meter that moves with fixtures off are common signs. A sudden jump in your water bill is also a warning sign.
Yes, FKM Plumbing stands behind the quality of our work. We offer a warranty on our slab leak repairs, providing you with peace of mind. The specific terms of the warranty will be reviewed with you before any work begins.
If the pipe is in good condition and the leak is easy to reach, a spot repair can work. If the pipe is old or you have had prior leaks, a reroute is usually the better long-term value.
Look for sudden spikes in your water bill, warm spots on your floor, the sound of running water when no fixtures are in use, visible water stains or mildew on baseboards or carpets, and cracks in your foundation. These are clear indicators that you might have a hidden slab leak in your Ontario home.
We use high-quality, durable piping materials from trusted brands known for longevity and performance. This includes PEX piping from trusted manufacturers like Uponor or Viega, and high-grade copper piping when appropriate, for lasting repairs in your Ontario home.
Detection usually takes one to three hours. Spot repairs and reroutes usually take one to two days.
A slab leak is a leak in the plumbing pipes embedded within or beneath your home's concrete slab foundation. Other water leaks might occur in exposed pipes, walls, or ceilings, but slab leaks are hidden and often more difficult to detect and repair due to their location.
What People Are Saying About Our Plumbing Experts?

Laura S.
I scheduled a water heater replacement, and the team made the process smooth and affordable. The new unit works perfectly, and they cleaned up after completing the job.
Water Heater Replacement · Chino, CA
Patricia H.
We had a slab leak that two other companies could not find. FKM Plumbing located it in under an hour, explained our options, and the price matched the quote to the dollar.
Slab Leak Repair · Ontario, CA
Daniel K.
A pipe burst at 11 pm and they actually answered. The plumber showed up within the hour, shut everything down, and had us back to normal the next morning. Could not ask for more.
Emergency Plumbing · Chino, CA
Mark T.
When our office needed drain cleaning, FKM Plumbing provided quick, reliable service. The plumber arrived on time and made sure every drain flowed perfectly before leaving. Very satisfied.
Drain Cleaning · Chino, CA
Sofia M.
Two new toilets installed in one visit, no mess left behind, and the tech even adjusted a faucet he noticed was dripping. Fair pricing and really friendly.
Toilet Installation · Chino, CA
James P.
Our commercial plumbing system had a leak under the sink, and FKM Plumbing handled it professionally. The plumbers arrived quickly and restored everything without disruption to our customers.
Commercial Plumbing · Jurupa Valley, CA













