Backflow Preventer in San Rafael, CA
Keep your drinking water safe in San Rafael, CA with our proven backflow preventer solutions.
- Fast, Certified Technicians
- Northern California-Specific Expertise
- Code Approved Work
- Upfront Pricing Always
Pass Your Backflow Test and Stay Compliant in San Rafael, CA.
If your assembly fails, we can usually repair or rebuild it on the same visit and test it again.
Reliable Backflow Preventer Services for San Rafael, CA Homes
At FBL Plumbing, we understand the critical role a backflow preventer plays in protecting your water in San Rafael, CA. Our certified technicians are skilled in all aspects, from routine inspections to complex repairs and new installations, so your system is always compliant.
Our expertise includes:
- New installations for residential and commercial properties.
- Installation for irrigation, fire suppression, and domestic lines.
- Repair and replacement of all backflow preventer models.

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

Customers
Why Choose FBL Plumbing for Backflow Preventer in San Rafael, CA?
Changing water pressure and occasional municipal main breaks make a working backflow preventer important for peace of mind and safety.
- Health Safety, Keep sewage, chemicals, and other pollutants from entering your potable water supply.
- Water Quality, Our services directly protect your family from contaminated water sources, a serious concern for health and peace of mind.
- Certified Plumbers, Our technicians are specifically certified and trained in backflow prevention device testing and repair.
Citywide Coverage
We test and repair backflow preventers in every neighborhood of San Rafael, from residential irrigation systems to large commercial properties. Our technicians are familiar with local water provider reporting rules.
Experienced Team
Our team of licensed plumbers brings deep experience to every backflow preventer job in San Rafael. They are regularly trained on the latest backflow prevention technologies and code updates, delivering expert service every time.
Safety-First Approach
Safety is our top priority, especially when it comes to your drinking water. All our backflow preventer services stick closely to local San Rafael codes and state regulations, so your system is not only effective but also fully compliant.
Trusted Certified San Rafael Plumbing Services Professionals
At FBL Plumbing, we take pride in providing certified plumbing services throughout San Rafael, 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 CertificationCode-Compliant Backflow Preventer Services in San Rafael, CA
Reduced Pressure Zone Assembly Service in San Rafael, CA
RPZ assemblies protect against high-hazard cross-connections at restaurants, medical offices, car washes and buildings with chemical feed systems. They have two check valves and a relief port that discharges water if a check fails. We install, test and rebuild RPZ units from Watts, Febco, Wilkins and Apollo. Proper drainage is designed for the relief port discharge.

Backflow Preventer Repair in San Rafael, CA
If your backflow preventer fails its annual test or shows signs of malfunction, FBL Plumbing offers professional repair services. Common issues include worn-out check valves, faulty relief valves, or damaged springs. Our team carries a wide range of replacement parts for leading brands like Watts, Wilkins, Febco, and Conbraco. We diagnose the exact problem and perform precise repairs to restore your device's full protective function, heading off potential water contamination in San Rafael.
Backflow Preventer Cost & Value in San Rafael, CA
The cost of backflow preventer services in San Rafael, CA varies depending on the type of service, such as testing, repair, or installation, and the device involved. While there is an upfront investment, a working backflow preventer provides important protection for your health and avoids potential fines or costly contamination cleanup. We offer transparent pricing and detailed estimates before any work begins.
Commercial Backflow Compliance in San Rafael
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 Repair vs. Replacement Cost in San Rafael, CA
Repairing a failed assembly with a rebuild kit is often the most economical choice. Replacement makes sense when the body is cracked, parts are discontinued or the device is the wrong type for the hazard. We compare repair and replacement costs on the spot. You choose the option that fits your budget and compliance needs.
Residential Backflow Solutions in San Rafael
For homeowners in San Rafael, a backflow preventer is essential for protecting against contaminants from garden hoses, irrigation systems, or cross-connections within your home's plumbing. FBL Plumbing offers custom residential backflow solutions, from installing atmospheric vacuum breakers for hose bibs to more robust devices for whole-home protection. We make sure your family's drinking water stays clean and your home meets all local water safety regulations.
Watts Backflow Preventer Service in San Rafael, CA
Watts is a leading manufacturer of backflow prevention devices, known for reliability 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 optimally. We also stock genuine Watts parts for quick and effective repairs, keeping your system in top condition.

Febco Backflow Preventer Experts in San Rafael
Febco backflow preventers are common in commercial and irrigation applications. FBL Plumbing provides expert service for all Febco models, including the 825Y and 860 series. We understand the details of Febco designs and can quickly 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.
Backflow Preventer Testing Near Me in San Rafael, CA
Our plumbers are always on call for backflow preventer needs across San Rafael, keeping your water supply safe and compliant. We pride ourselves on being the reliable choice for homeowners looking for quality backflow prevention near me, delivering peace of mind with every service.
We know the reporting process used by water providers around San Rafael. Our team submits results in the format they expect. That reduces paperwork headaches and follow-up calls.
FBL Plumbing at a Glance
- Licensed and insured plumbers serving San Rafael, CA
- Same-day appointments and 24/7 emergency response
- Upfront, flat-rate pricing before work begins
- 4.8-star rated by 834+ Northern California customers
San Rafael Map
San Rafael Information
- Population
- 59,555
- Area codes
- 415/628/510
- Service area
- San Rafael and communities within 40 miles
- Nearby
- Novato, Richmond, Berkeley, Vallejo
With a mix of older and newer construction and varying water pressure, a working backflow preventer is vital for protecting your home's drinking water in San Rafael, CA from possible contamination.
Expert Services
Trust our professionals for reliable FBL Plumbing solutions in San Rafael, CA.
Our Specialized Plumbing Services in San Rafael, CA
At FBL Plumbing, we provide a complete range of plumbing services across San Rafael, 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 San Rafael, CA
Our process for backflow preventer testing, repair, or installation is designed for clarity and your convenience.
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 San Rafael 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 San Rafael
The cost for backflow preventer services in San Rafael, CA varies. A standard backflow test usually ranges from $75 to $150. Repairs can cost between $200 and $600, depending on the parts needed, while new installations might range from $450 to $1,500 or more for larger commercial units. We provide a clear quote before beginning any work.
A standard test usually takes 20 to 45 minutes per assembly. Water is temporarily shut off during testing. Repairs may add an hour or more.
Yes, new backflow preventer installations or significant replacements often require a plumbing permit from the San Rafael building department. This makes sure the installation meets local codes and is inspected for proper function. FBL Plumbing can help you handle the permitting process.
We service Watts, Febco, Zurn Wilkins, Apollo and other common brands. Our trucks carry rebuild kits for common models. Less common parts can usually be ordered quickly.
Most water providers require testing at least once per year. Some require testing after installation, repair or relocation as well. Your provider's notice will list the due date.
A well-maintained backflow preventer can last 10 to 20 years or more. However, factors like water quality, exposure to weather, and the type of device can affect its lifespan. Mountain and foothill homes in Northern California see real winters, so pipes there need insulation, heat tape, or proper draining when a cabin sits empty. Regular testing and maintenance help extend its service life.
We service all major brands of backflow preventers, including Watts, Wilkins, Febco, Conbraco and Apollo, and Zurn. Our technicians are trained and equipped to handle various models and types, so your device receives expert attention and the proper parts for repair.
New installations and replacements often require a plumbing permit and an initial test. Requirements vary by city and water provider. We obtain permits and handle the initial test.
What People Are Saying About Our Plumbing Experts?

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 · Berkeley, CA
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 · Petaluma, 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 · Berkeley, 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 · Berkeley, 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 · Berkeley, 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 · Vallejo, CA













