Leak Detection in San Mateo, CA
Worried about a hidden leak at your San Mateo home or business? FBL Plumbing provides precise leak detection services across Northern California.
- Modern Technology
- Written Report for Insurance
- Upfront Pricing
- Prevent Costly Damage
Find and Fix Your Leaks Fast in San Mateo, CA.
Don't let a hidden leak cause major problems; contact FBL Plumbing for immediate assistance.
Your Local Choice for Leak Detection in San Mateo, CA
When you suspect a leak in your San Mateo home or business, FBL Plumbing is the name to trust. We use modern equipment to accurately detect water, gas and sewer leaks, helping you prevent extensive damage and high utility bills.
Our expertise includes:
- Pressure isolation tests for main lines, branches and irrigation
- Thermal imaging to trace hot water leaks in slabs and walls
- Precisely locating gas line leaks for safety.

Additional Plumbing Maintenance Services in San Mateo, CA
Our maintenance and specialty plumbing services in San Mateo, CA catch small problems before they become emergencies.

Customers
Why Choose FBL Plumbing for Leak Detection in San Mateo, CA?
Choosing FBL Plumbing for leak detection means you are opting for precision and peace of mind. Our methods are built to minimize disruption while accurately identifying the leak's origin.
- Damage Prevention, Early leak detection prevents serious water damage to your home's structure, foundation and personal belongings.
- Advanced Tools, We use acoustic listening devices, thermal imaging cameras and tracer gas to locate leaks with precision.
- Less Damage, Precise locating means smaller repair openings and lower repair costs.
Citywide Coverage
We provide leak detection to homes and businesses throughout San Mateo, from older properties with galvanized lines to newer homes with PEX. Every technician carries a full detection kit.
Experienced Team
Our team has seen almost every kind of leak found in Northern California homes, from copper pinholes to cracked irrigation laterals. That experience helps them read the clues quickly.
Safety-First Approach
Our detection methods are non-invasive and safe for your family and pets. When a repair is needed, it is completed to the plumbing code used by your city or county.
Trusted Certified San Mateo Plumbing Services Professionals
At FBL Plumbing, we take pride in providing licensed, certified plumbing services throughout San Mateo, 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 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 CertificationProfessional Leak Detection Services in San Mateo, CA
Hidden Wall and Ceiling Leak Detection in San Mateo
Leaks inside walls and ceilings often show up as stains, bubbling paint, soft drywall or a musty smell. We use thermal cameras to find temperature differences caused by water, then confirm with moisture meters. Acoustic tools help when the leak is on a pressurized line. Pinpointing the source lets us cut a small, neat access opening.

Preventative Leak Detection Inspections in San Mateo, CA
Beyond emergency services, FBL Plumbing also offers preventative leak detection inspections. Regular inspections can identify small leaks before they become major problems, especially in older homes or properties with known plumbing issues. This proactive approach helps lengthen the life of your plumbing system and can save thousands in potential repair costs, especially for homes with aging infrastructure.
Sewer Line Leak Detection in San Mateo, CA
Sewer line leaks can cause foul odors, slow drains and potential health hazards. Our team uses camera inspections to visually identify breaks, cracks or blockages within your sewer lines. This method allows for precise location of the leak without guesswork, leading to more efficient and targeted repairs. We address sewer leaks in all types of piping materials common in San Mateo homes, from PVC to cast iron.
Gas Leak Detection Services in San Mateo
Gas leaks are very dangerous and require immediate professional attention. Our team is equipped with highly sensitive gas leak detectors to quickly identify the location and severity of any gas escape. We put safety first and will guide you through the necessary steps, including shutting off the gas supply and coordinating with your utility company, to make sure your home is secure.
PEX and Copper Pipe Leak Detection in San Mateo, CA
Whether your San Mateo home has modern PEX plumbing or traditional copper pipes, leaks can occur. We are proficient in detecting leaks in all common piping materials found in Northern California homes. Our tools are designed to work effectively with both metallic and non-metallic pipes, so no matter your plumbing system, we can accurately locate any leak. We handle everything from pinhole leaks to joint failures.
Fixture and Appliance Leak Detection in San Mateo, CA
Running toilets, worn faucet cartridges and leaking water heater connections waste more water than most people think. A silent toilet leak can lose hundreds of gallons a day. We check flappers, fill valves, supply lines, softeners and water heater fittings. These repairs are typically quick and inexpensive.
Pool Leak Detection in San Mateo
A leaking pool can lead to wasted water and higher utility bills. Our specialists are experienced in detecting leaks in pool liners, plumbing and equipment. We use dye testing, pressure testing and listening devices to find the exact source of the leak, whether it's in the skimmer, main drain or return lines. Protect your investment and enjoy your pool without endless refilling in San Mateo.

Pool and Spa Leak Detection in San Mateo
Summer heat and wind can evaporate a lot of pool water, so it can be hard to tell normal loss from a leak. A bucket test compares evaporation to actual water loss. We then pressure test plumbing lines and use dye testing around lights, skimmers and fittings. Finding the leak protects the pool shell and the soil around it.
Leak Detection Near Me in San Mateo, CA
When you suspect a leak, getting a fast answer saves water, money and damage. Our technicians work throughout San Mateo and can usually schedule a test within a day. We bring all of our detection equipment on the first visit.
When you search for 'leak detection near me' in San Mateo, CA, you want a company that responds promptly and effectively. FBL Plumbing is your local plumbing expert, ready to address your leak concerns with speed and professionalism. We pride ourselves on being accessible to all residents and businesses in the area.
FBL Plumbing at a Glance
- Licensed and insured plumbers serving San Mateo, CA
- 24/7 emergency service with same-day scheduling
- Clear written estimates, no hidden fees
- 4.8-star rated by 834+ Northern California customers
San Mateo Map
San Mateo Information
- Population
- 101,327
- Area codes
- 650/415/669
- Service area
- San Mateo and communities within 40 miles
- Nearby
- Redwood City, South San Francisco, Hayward, Daly City
Slab foundations, mineral-heavy water and buried irrigation lines all hide leaks, so accurate detection in San Mateo, CA prevents costly damage and wasted water. Rural properties around San Mateo often rely on private wells, which may need filtration for iron, sediment, or other minerals.
Expert Services
Trust our professionals for reliable FBL Plumbing solutions in San Mateo, CA.
Our Specialized Plumbing Services in San Mateo, CA
At FBL Plumbing, we provide a complete range of plumbing services across San Mateo, 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 Leak Detection Process Works in San Mateo, CA
We follow a methodical approach so every leak is precisely located and ready for repair.
Request a Quote
Call (669) 319-2034 and describe the signs you have noticed, such as a high bill or damp spot. We schedule a visit and explain our detection fee.
Test and Isolate
We check your meter and run pressure tests to confirm a leak and identify which part of the system is losing water. This focuses the search before we start locating.
Pinpoint and Report
We use acoustic and thermal equipment to mark the leak precisely. You get a written report and repair options with prices.
Frequently Asked Questions About Leak Detection in San Mateo
The cost of leak detection in San Mateo, CA can range from $250 to $800, depending on the complexity and location of the leak. Factors like slab leaks or hard-to-reach pipe leaks may be at the higher end. We provide a written estimate after our initial assessment.
Most standard leak detection services can be completed within 1 to 3 hours. More complex cases, such as multiple leaks or hard-to-access areas like under a slab, might take longer to precisely pinpoint.
If you suspect a gas leak, right away evacuate everyone from the property, do not use any electrical devices, and call your gas utility company and FBL Plumbing from a safe location. Gas leaks are extremely dangerous and require immediate professional attention.
Rural properties around San Mateo often rely on private wells, which may need filtration for iron, sediment, or other minerals. Hard or aggressive water can cause pinhole corrosion in copper pipes over time. Slab foundations on shifting soils also put stress on pipes underneath the house, and high water pressure in some areas adds more stress.
Many homeowners policies cover the cost of finding and accessing a sudden leak, though coverage varies. We provide a written report with photos to back up your claim. Check with your insurer about your specific policy.
Older galvanized steel pipes are prone to corrosion, and some older polybutylene pipes are known for early failure. However, even modern materials like copper or PEX can leak due to improper installation, high water pressure or foundation shifts.
Older homes may have galvanized steel or polybutylene pipes, both known for higher leak rates due to corrosion or material breakdown. Copper pipes can develop pinhole leaks over time, while PVC and PEX are generally more reliable but can still leak at fittings or due to installation errors.
Many homeowner's insurance policies cover the cost of repairing sudden and accidental leaks, and sometimes the cost of leak detection itself, especially if it leads to a covered repair. It's best to check your specific policy or contact your insurance provider for details.
What People Are Saying About Our Plumbing Experts?

Patricia H.
We had a slab leak that two other companies could not find. FBL Plumbing located it in under an hour, explained our options, and the price matched the quote to the dollar.
Slab Leak Repair · Redwood City, CA
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 · San Leandro, CA
Emily R.
I called FBL Plumbing for plumbing repair, and the technician was fast, polite, and thorough. They explained the problem clearly and fixed it the same day. I will definitely hire them again. Highly recommended!
Plumbing Repair · San Mateo, CA
Mark T.
When our office needed drain cleaning, FBL Plumbing provided quick, reliable service. The plumber arrived on time and made sure every drain flowed perfectly before leaving. Very satisfied.
Drain Cleaning · Redwood City, CA
James P.
Our commercial plumbing system had a leak under the sink, and FBL Plumbing handled it professionally. The plumbers arrived quickly and restored everything without disruption to our customers.
Commercial Plumbing · South San Francisco, 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 · San Leandro, CA













