Backflow Preventer in Palo Alto, CA
Keep irrigation, fire lines and commercial equipment compliant in Palo Alto, CA with professional backflow preventer service.
- Fast, Certified Technicians
- Transparent Pricing
- Fast, Certified Technicians
- Northern California-Specific Expertise
Pass Your Backflow Test and Stay Compliant in Palo Alto, CA.
Call today to schedule a certified test, and we will file the results with your water provider.
Certified Backflow Preventer Testing and Installation in Palo Alto, CA
FBL Plumbing installs, tests and repairs backflow preventers that keep irrigation water, chemicals and other contaminants from flowing back into the public water supply. We work on reduced pressure zone assemblies, double check valves and pressure vacuum breakers from Watts, Febco, Wilkins and Apollo.
Our expertise includes:
- Repairs and replacements for all types and brands.
- Annual certified testing of RPZ, DCVA and PVB assemblies
- New backflow installation for irrigation, fire and commercial lines

Additional Plumbing Maintenance Services in Palo Alto, CA
Our maintenance and specialty plumbing services in Palo Alto, CA protect your home year-round and extend the life of every system.

Customers
Why Choose FBL Plumbing for Backflow Preventer in Palo Alto, CA?
Protecting your water supply from contamination is not just about compliance, it is about public health. Backflow events can introduce harmful substances into your drinking water.
- Prevent Damage, Proper backflow prevention avoids expensive contamination and potential damage to your home's entire plumbing system.
- Certified Plumbers, Our technicians are specifically certified and trained in backflow prevention device testing and repair.
- Certified Testers, Our testers hold current backflow certification and use calibrated gauges.
Citywide Coverage
No matter where you are located within Palo Alto, CA, FBL Plumbing has your backflow prevention needs covered. We understand the diverse plumbing systems across the area and provide tailored solutions to each homeowner.
Experienced Team
Our team of licensed plumbers brings deep experience to every backflow preventer job in Palo Alto. They are regularly trained on the latest backflow prevention technologies and code updates, delivering reliable service every time.
Safety-First Approach
We prioritize the safety of your water supply and your property during every backflow preventer service. Our technicians follow strict safety protocols and make sure all work complies with Northern California plumbing codes for your peace of mind in Palo Alto, CA.
Trusted Certified Palo Alto Plumbing Services Professionals
At FBL Plumbing, we take pride in providing licensed, certified plumbing services throughout Palo Alto, 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 CertificationCompliant Backflow Preventer Services in Palo Alto, CA
Watts Backflow Preventer Service in Palo Alto, CA
Watts is a leading manufacturer of backflow prevention devices, known for dependability and a wide range of products. FBL Plumbing specializes in servicing Watts backflow preventers, including the popular 009 series and 909 series reduced pressure zone assemblies. Our technicians are experienced in diagnosing and repairing Watts components so your device performs as designed. We also stock genuine Watts parts for quick and effective repairs, keeping your system in top condition.

New Backflow Preventer Installation in Palo Alto
Whether you are installing a new irrigation system, fire suppression system, or need to replace an outdated device, FBL Plumbing handles professional backflow preventer installations. We assess your property's needs and local plumbing codes to recommend the correct type and size of backflow preventer. Proper installation is critical for effective operation, and our certified plumbers make sure your new device is correctly fitted, tested, and compliant with all Palo Alto standards.
Backflow Preventer Cost & Value in Palo Alto, CA
The cost of backflow preventer services in Palo Alto, CA varies depending on the type of service, such as testing, repair, or installation, and the device involved. While there is an initial investment, a working backflow preventer provides invaluable protection for your health and avoids potential fines or costly contamination cleanup. We offer clear pricing and detailed estimates before any work begins.
Febco Backflow Preventer Experts in Palo Alto
Febco backflow preventers are commonly found in commercial and irrigation applications. FBL Plumbing provides professional service for all Febco models, including the 825Y and 860 series. We understand the details of Febco designs and can efficiently troubleshoot, repair, or replace components like check valves, relief valves, and air inlets. Trust us to maintain your Febco device to factory specifications so it keeps protecting against backflow events.
Commercial Backflow Services in Palo Alto, CA
Businesses in Palo Alto often have more complex backflow prevention requirements due to higher water usage and diverse plumbing systems. FBL Plumbing provides full-service commercial backflow services, including large-scale testing, repair, and installation for multi-unit properties, industrial facilities, and restaurants. We understand the demands of commercial operations and work efficiently to minimize disruption, keeping your business compliant and your water supply safe.
Fire Line Backflow Testing in Palo Alto
Fire sprinkler systems usually use double check or double check detector assemblies to keep stagnant water out of the public supply. These assemblies need regular testing, often coordinated with fire system inspections. We test and repair fire line assemblies and document the results. We can coordinate scheduling with your fire protection contractor.
Emergency Backflow Service in Palo Alto, CA
A failing backflow preventer can pose an urgent health risk, potentially contaminating your potable water supply. If you suspect an issue or experience a sudden problem with your device in Palo Alto, CA, FBL Plumbing offers emergency services. Our plumbers are equipped to diagnose and address urgent backflow preventer problems quickly, restoring safety to your water.

Commercial Backflow Compliance in Palo Alto
Commercial properties may have several assemblies on domestic water, irrigation, fire lines and equipment. We track test dates, schedule them together and submit all reports. Property managers receive a summary of every device and its status. This keeps you ahead of notices and avoids unexpected shutoffs.
Backflow Preventer Near Me in Palo Alto, CA
Our plumbers are always on call for backflow preventer needs across Palo Alto, keeping your water supply safe and compliant. We pride ourselves on being the dependable choice for homeowners looking for quality backflow prevention near me, delivering peace of mind with every service.
Our certified testers work locally and can often schedule tests within a few days of your notice. That gives you time to make repairs before the deadline. We also send reminders when next year's test is due.
FBL Plumbing at a Glance
- Licensed and insured plumbers serving Palo Alto, CA
- 24/7 emergency service with same-day scheduling
- Upfront, flat-rate pricing before work begins
- 4.8-star rated by 834+ Northern California customers
Palo Alto Map
Palo Alto Information
- Population
- 65,882
- Area codes
- 650/408/669
- Service area
- Palo Alto and communities within 40 miles
- Nearby
- Mountain View, Sunnyvale, Cupertino, Redwood City
With a mix of older and newer construction and varying water pressure, a properly functioning backflow preventer is vital for protecting your home's drinking water in Palo Alto, CA from possible contamination.
Expert Services
Trust our professionals for reliable FBL Plumbing solutions in Palo Alto, CA.
Our Specialized Plumbing Services in Palo Alto, CA
At FBL Plumbing, we provide a complete range of plumbing services across Palo Alto, 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 Backflow Preventer Process Works in Palo Alto, CA
Our backflow process is designed to get you compliant fast with as little hassle as possible.
Request a Quote
Call (669) 319-2034 or fill out our online form to schedule your backflow preventer service. We'll gather details about your needs and set up an appointment.
On-Site Assessment
A certified technician arrives at your Palo Alto home to inspect your current backflow preventer or assess installation requirements. We diagnose any issues or plan the new installation.
Expert Service
We perform the required testing, repair, or installation using proven practices and quality parts. Our goal is to make sure your device works correctly and meets all codes.
Frequently Asked Questions About Backflow Preventer in Palo Alto
Annual residential backflow testing usually costs $75 to $150 per assembly. Repairs with a rebuild kit usually run $150 to $450. New residential installation ranges from $300 to $1,200, and commercial RPZ assemblies often cost $1,500 to $5,000 installed.
Most municipalities and water utilities require backflow preventers to be tested every year. This confirms the device is working correctly to protect the public water supply from contamination. We can help you schedule these regular inspections.
Yes, new backflow preventer installations or major replacements often require a plumbing permit from the Palo Alto building department. This makes sure the installation meets local codes and is inspected for proper function. FBL Plumbing can help you navigate the permitting process.
A standard test usually takes 20 to 45 minutes per assembly. Water is briefly shut off during testing. Repairs may add an hour or more.
FBL Plumbing stands behind our work with a full warranty on all backflow preventer repairs and installations. We use quality parts and hold our workmanship to the highest standards. Warranty details will be provided with your service agreement.
Most municipalities, including Palo Alto, require backflow preventers to be tested annually. This regular testing makes sure the device is working correctly and continues to protect your potable water supply from contamination, as required by local water authorities.
Constant dripping from the relief valve, low water pressure and visible cracks are typical signs. Discolored water or a failed test notice also indicate a problem. Prompt repair keeps you in compliance.
The lifespan of a backflow preventer usually ranges from 10 to 20 years, depending on the type, manufacturer, water quality, and maintenance. Regular testing and timely repairs can extend its life. However, certain components like rubber seals may need replacement sooner due to normal wear.
What People Are Saying About Our Plumbing Experts?

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 · Redwood City, 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 · Palo Alto, 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 · Palo Alto, 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 · Cupertino, 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 · Santa Clara, CA
Robert G.
The trenchless sewer replacement saved our front yard. They walked us through the camera inspection footage first so we knew exactly what we were paying for.
Sewer Line Replacement · Mountain View, CA













