Underground Pipe Repair in Ontario, CA
For reliable underground pipe repair in Ontario, CA, trust FKM Plumbing to diagnose and fix your buried plumbing issues with professional care.
- Fast, Local Service
- Expert Diagnostics
- Code Compliant Repairs
- Foundation Protection
Need Underground Pipe Repair? Call FKM Plumbing in Ontario, CA.
Call now and we will locate the leak accurately so we only dig one small hole instead of trenching your yard.
Reliable Underground Pipe Repair in Ontario, CA
FKM Plumbing focuses on underground pipe repair, addressing a range of issues from minor leaks to major breaks in your buried plumbing system. Most homes in Southern California sit on concrete slabs, so slab leaks often show up as warm floors, damp carpet, or an unexplained jump in the water bill. Shifting ground can put serious stress on underground pipes, leading to cracks or separations that require expert repair.
Our expertise includes:
- Underground sewer lateral and cleanout repair to the property line
- Trenchless repair options for less disruption.
- Trenchless repair methods for minimal property damage.

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 Underground Pipe Repair in Ontario, CA?
We carry the locating equipment, excavation tools and pipe materials needed to finish most underground repairs in one trip. You get one crew from start to finish.
- Pinpoint Locating, Acoustic and electronic tools narrow the leak down to within a few feet.
- Local Knowledge, Our team knows how Southern California climate, soil movement and local plumbing codes affect underground pipe systems.
- Advanced Tools, We use modern video inspection cameras and acoustic leak detectors to accurately locate underground pipe issues.
Citywide Coverage
We repair underground pipes in every part of Ontario, including older neighborhoods with galvanized services and newer areas with PEX and PVC. Our team handles both residential lots and larger commercial sites.
Experienced Team
The FKM Plumbing team is highly skilled in identifying and resolving even the most elusive underground pipe problems. Their expertise ensures that whether it's a minor leak or a major sewer line collapse, the repair is performed safely and effectively.
Safety-First Approach
Repairs are made with materials approved for direct burial and installed at code-required depths. Where a permit or inspection is needed for service line replacement, we take care of it.
Trusted Certified Ontario Plumbing Services Professionals
At FKM Plumbing, we take pride in providing certified plumbing services throughout Ontario, CA. Backed by leading 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 CertificationDurable Underground Pipe Repair Services in Ontario, CA
Underground Sewer Line Repair in Ontario, CA
Buried sewer laterals crack from root intrusion, soil settling and age. We camera the line to find the exact spot, then excavate and replace the damaged section with PVC. Shielded couplings make a watertight connection to the existing pipe. We confirm proper slope and flow before backfilling and tamping the trench.

Underground Pipe Repair Cost Comparison in Ontario, CA
A single point repair on a shallow water line is the most economical option. Pipe bursting or pulling a new line through the old path costs more but avoids open trenching and long-term risk. Full trench replacement is sometimes needed when the old route is blocked or the pipe is too damaged. We explain each method and its cost so you can choose the best value.
Galvanized and Polybutylene Line Replacement in Ontario
Galvanized steel pipe rusts from the inside, and polybutylene pipe becomes brittle and splits without warning. If your underground service is either material, repairs are often temporary. We replace the line with PEX or Type K copper, often by pulling the new pipe through the old path to limit digging. A new line restores pressure and removes the risk of repeated leaks.
Emergency Underground Pipe Repair in Ontario
An unexpected underground pipe burst or major leak can cause significant damage quickly. FKM Plumbing offers emergency underground pipe repair services to address critical situations fast. Our technicians are ready to respond to urgent calls, providing quick diagnosis and effective solutions to prevent further property damage and restore essential services in Ontario.
Underground Leak Detection & Repair in Ontario, CA
Detecting a hidden underground leak can be challenging, but FKM Plumbing uses advanced acoustic and thermal imaging equipment to pinpoint the exact location in Ontario, CA. Once detected, our skilled plumbers perform precise repairs, whether it's a small pinhole leak or a significant break, to conserve water and prevent further damage.
Main Water Line Repair in Ontario
Your main water line runs from the meter box to the house and is under constant pressure. When it leaks, you may notice a spinning meter dial with all fixtures off, low pressure or a wet spot that never dries. We locate the leak, expose the pipe and splice in a new section with approved fittings. If the line is old galvanized or polybutylene, we will recommend a full replacement before more breaks occur.
Trenchless Pipe Repair in Ontario
Trenchless pipe repair offers a less invasive alternative to traditional excavation for buried pipe issues. Methods like pipe bursting or pipe lining allow us to repair or replace damaged pipes with minimal digging, protecting your landscaping, driveways and foundations in Ontario. This approach saves time and reduces restoration costs, making it ideal for many homeowners.

Polybutylene Pipe Replacement in Ontario
Many homes built in the 1980s and 1990s may have polybutylene pipes, which are prone to sudden failure due to their material composition. If you have polybutylene in your underground water lines, proactive replacement is usually recommended. We specialize in safely removing and replacing these problem pipes with modern, durable alternatives, preventing future leaks in Ontario.
Expert Underground Pipe Repair Near Me in Ontario, CA
When you search for "underground pipe repair near me" in Ontario, CA, FKM Plumbing is your trusted local choice. We understand the plumbing infrastructure challenges in our area, including the impact of soil movement and changing temperatures on buried pipes. Our proximity means faster response times and technicians who are familiar with local conditions.
Our location allows us to respond quickly to your underground pipe repair needs across Ontario, providing timely and effective solutions. You can count on FKM Plumbing for reliable service that addresses your underground plumbing issues with local knowledge and experience.
FKM Plumbing at a Glance
- Fully licensed plumbing team covering Ontario, CA
- Same-day appointments and 24/7 emergency response
- 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
Underground pipe issues in Ontario, CA are often made worse by soil that shifts and stresses buried plumbing, which makes professional diagnosis and repair important for your home. Most homes in Southern California sit on concrete slabs, so slab leaks often show up as warm floors, wet carpet, or an unexplained jump in the water bill.
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 Underground Pipe Repair Service Process Works in Ontario, CA
Our underground pipe repair process in Ontario, CA is designed to be as efficient and low-impact as possible, from initial assessment to final repair.
Request a Quote
Call (213) 871-0701 and let us know what you are seeing, such as a wet yard, a high bill or low pressure. We will schedule a locating visit quickly.
Locate the Leak
We use acoustic, electronic and camera equipment to pinpoint the damaged section. Then we mark it and give you a written repair quote.
Repair and Restore
We excavate, repair the pipe with approved materials and pressure test the line. Then we backfill, compact and clean up the work site.
Frequently Asked Questions About Underground Pipe Repair in Ontario
The cost of underground pipe repair in Ontario, CA can vary widely, typically ranging from $500 for minor spot repairs to $3,000 to $10,000 or more for trenchless full line replacements, or even more for extensive excavation and re-piping. Factors include the pipe material, depth, length of the damaged section, the repair method chosen and the extent of property restoration needed. We provide honest, upfront pricing after a thorough diagnosis.
Common signs include a water bill that jumps without explanation, a meter that moves with all water off, low pressure and wet or sinking spots in the yard. A hissing sound near the meter box can also point to a leak.
Trenchless pipe repair offers several key advantages, including minimal disruption to your yard, landscaping and concrete, which can save on restoration costs. It's often faster than traditional excavation and less invasive, preserving the look and value of your property. This method is also durable, frequently extending the lifespan of your pipes.
Common signs of a broken underground pipe include unexplained wet spots or lush patches in your yard, a sudden drop in water pressure, unusual odors such as sulfur or sewage, gurgling sounds from drains or toilets or an unexpected increase in your water bill. If you notice any of these, it's wise to call for a professional inspection promptly.
Yes. Our repairs include a written workmanship warranty, and the pipe and fittings carry manufacturer warranties. We explain coverage before we start.
Small repairs often do not need a permit, but full water service or sewer line replacement usually does. Work in the public right-of-way always requires coordination with the city. We handle permits when required.
Shallow irrigation leaks are sometimes a manageable DIY repair. Main water lines and sewer laterals require locating, utility marking and code-compliant fittings, so a licensed plumber is the safer choice.
In most cities, the homeowner owns and maintains the water line from the meter to the house. The utility is responsible for the meter and the line on the street side. We can help confirm which side the leak is on.
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













