Water Leak Repair in Ontario, CA
Experiencing a water leak in Ontario, CA? FKM Plumbing offers prompt, expert leak detection and repair services to protect your home.
- Precise Leak Detection
- Fast Leak Location Service
- Minimal Wall and Floor Damage
- Foundation Protection
Need Fast Water Leak Repair in Ontario, CA?
We locate leaks accurately so we only open what needs opening.
Trusted Water Leak Repair in Ontario, CA
FKM Plumbing focuses on comprehensive water leak repair for homes across Ontario, CA. We understand the challenges Southern California properties face, from shifting soil causing slab leaks to temperature swings affecting pipes. Expansive clay and hillside soils can shift over time, putting stress on slab plumbing and separating older sewer joints. Our technicians are equipped with advanced tools like acoustic leak detectors to pinpoint the problem quickly and accurately.
Our expertise includes:
- Acoustic ground microphones and thermal imaging for hidden leaks
- PEX, Copper, PVC Pipe Service
- Slab Leak Location and Repair

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 Water Leak Repair in Ontario, CA?
We prioritize your safety and the integrity of your home, making sure every repair is performed with the highest standards of quality and compliance.
- Root Cause Fixes, We check water pressure and the pressure regulator, which often contribute to repeat leaks.
- Advanced Tools, We use low-impact leak detection equipment like acoustic sensors and thermal imaging to find hidden leaks without unnecessary demolition.
- Skilled Technicians, Our plumbers are highly trained and experienced in diagnosing and repairing all types of water leaks, using modern tools.
Citywide Coverage
Wherever you are in Ontario, our leak specialists can reach you fast. We handle leaks in homes, rentals and small commercial buildings alike.
Experienced Team
Our plumbing technicians have extensive experience specifically with water leak repair, having resolved countless issues in Southern California homes. They are continuously trained on current repair methods and plumbing codes.
Safety-First Approach
All water leak repairs performed by FKM Plumbing are executed with the utmost attention to safety and code compliance. We ensure that all work meets or exceeds local Ontario regulations, giving you peace of mind.
Trusted Certified Ontario Plumbing Services Professionals
At FKM Plumbing, we take pride in providing 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 long-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 CertificationReliable Water Leak Repair Services in Ontario, CA
Commercial Water Leak Services in Ontario
Water leaks in commercial properties in Ontario can disrupt business operations, lead to costly downtime, and create unsafe conditions. FKM Plumbing provides specialized commercial water leak detection and repair services for businesses, offices, and industrial facilities. Our plumbers are equipped to handle larger-scale plumbing systems, complex pipe networks, and high-pressure lines. We work efficiently to minimize impact on your business, ensuring compliance with commercial building codes and industry standards while protecting your assets from water damage.

Copper Pinhole Leak Repair in Ontario
Copper pipes in some homes develop pinhole leaks from water chemistry, high velocity or poor original installation. Around Ontario, flushing the water heater yearly and cleaning aerators keeps scale buildup from cutting flow and efficiency. One pinhole frequently signals others nearby. We replace the damaged section with new copper or PEX and inspect the surrounding piping. If pinholes keep showing up, we discuss a partial or full repipe.
Leak Repair Cost Comparison in Ontario, CA
Fixture and supply line leaks typically cost $150 to $400 to repair. Leak detection typically runs $200 to $500, and in-wall repairs often fall between $300 and $900 before drywall patching. Slab and yard line repairs usually range from $1,000 to $4,000 depending on depth and method. We give you each option in writing so you can decide.
In-Wall Leak Repair in Ontario, CA
Leaks inside walls show up as bubbling paint, soft drywall, baseboard stains or a musty smell. We use moisture meters and thermal imaging to find the wet area and the leaking pipe. Repairs often involve replacing a pinholed copper section or a failed PEX fitting. We cut a clean access opening that is simple to patch.
Emergency Leak Repair in Ontario
A burst pipe or broken supply line can put inches of water on the floor in minutes. We answer emergency calls day and night and can walk you through shutting off your main valve. Once on site, we stop the leak and make a lasting repair. We can also refer a water mitigation company if drying is required.
Fixture Leak Repair in Ontario
Leaky faucets, toilets, and showers might seem minor, but they waste a lot of water and can lead to higher utility bills and mold growth. We repair or replace faulty washers, gaskets, O-rings, and cartridges in all major brands, including Moen, Delta, Kohler, and American Standard. Our plumbers confirm proper sealing and function, stopping the drips and restoring efficient water usage throughout your Ontario home. We also check for correct water pressure settings.
Emergency Water Leak Repair in Ontario, CA
A burst pipe or sudden, significant leak requires urgent attention to prevent extensive water damage. FKM Plumbing offers emergency water leak repair services across Ontario, CA. Our rapid response team is available to quickly shut off water, assess the damage, and perform urgent repairs. We understand the stress these situations cause and prioritize getting your plumbing back in order with minimal downtime, even outside regular business hours. Call us right away for any critical water leak issue.

Yard and Main Line Leak Repair in Ontario, CA
The service line between the meter and your house can crack from rocky soil, roots or ground movement. Expansive clay and hillside soils can shift over time, putting stress on slab plumbing and separating older sewer joints. Wet spots in the yard, sinkholes or very green patches are common signs. We locate the leak, excavate carefully and replace the damaged section with copper or approved plastic pipe. For long or deep lines, a new trenchless line may be the smarter choice.
Trusted Water Leak Repair Near Me in Ontario, CA
Our local presence means we understand the plumbing challenges faced by Ontario residents, from hard water issues to aging infrastructure. We are always nearby, ready to provide prompt and professional service, ensuring your home is protected from water damage.
Local plumbers understand how soil, water pressure and pipe materials combine to cause leaks in homes here. We use that knowledge to find leaks more quickly. Then we repair them to last.
FKM Plumbing at a Glance
- Licensed and insured plumbers serving 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
Hard water, high municipal pressure and soil movement under slabs all contribute to hidden leaks in Ontario, CA homes, and prompt leak repair saves both water and your home.
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 Water Leak Repair Process Works in Ontario, CA
Our leak repair process is built to find the problem fast and fix it with as little disruption as possible.
Request a Quote
Call (213) 871-0701 and tell us what you are noticing, such as a high bill, wet spot or the sound of running water. We schedule a leak detection visit quickly.
Locate the Leak
We isolate lines with pressure tests and pinpoint the leak with acoustic, thermal and moisture tools. You get repair options and a flat price before we open anything.
Repair and Test
We make the repair, pressure test the line and confirm the meter stays still. You receive photos and documentation for your records or insurance.
Frequently Asked Questions About Water Leak Repair in Ontario
Simple fixture leaks usually cost $150 to $400, while in-wall leaks run about $300 to $900 before patching. Slab and yard line leaks typically range from $1,000 to $4,000. We provide a firm price after locating the leak.
The length of a water leak repair depends on its complexity. Simple fixture repairs might take an hour or two, while burst pipe repairs or PEX line fixes could take half a day. More involved repairs, like a slab leak, might require a day or two for detection and repair, particularly if access is difficult.
While small, visible leaks like a dripping faucet might be tempting to DIY, most water leaks, especially those involving pipes within walls, under floors, or in the main service line, require professional expertise. A professional plumber from FKM Plumbing has the tools and knowledge to properly diagnose and repair the leak without causing further damage to your Ontario home.
To prevent future water leaks, consider regular plumbing inspections, insulating exposed pipes before cold weather, maintaining proper water pressure, and addressing small drips promptly. Replacing old, corroded pipes with modern materials like PEX can also significantly reduce leak risks over time.
Typically only a small opening is needed because we pinpoint the leak before cutting. For slab leaks, rerouting the line through walls or the attic can avoid breaking the floor entirely.
FKM Plumbing offers emergency water leak repair services and strives to respond as quickly as possible to prevent extensive water damage. For urgent situations in Ontario, CA, we aim to have a plumber on site within a few hours of your call, depending on call volume and location.
Homeowner's insurance typically covers sudden and accidental water damage, such as a burst pipe. However, coverage for leaks caused by neglect or long-term issues like corrosion may vary. We suggest contacting your insurance provider directly to understand your policy's specific coverage for water leak repairs.
While minor leaks like a dripping faucet might be a DIY fix, it's generally best to call a professional for most water leaks. Hidden leaks, especially in walls or under slabs, require specialized equipment for detection and proper repair to prevent further damage and ensure code compliance. Botched repairs can lead to more significant problems down the line.
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













