Backflow Preventer in San Diego, CA
Certified testers protect your water supply in San Diego, CA with backflow preventer installation, repair and annual testing.
- Test Reports Filed for You
- Southern California-Specific Expertise
- Fast Annual Test Scheduling
- Guaranteed Workmanship
Pass Your Backflow Test and Stay Compliant in San Diego, CA.
If your assembly fails, we can usually repair or rebuild it on the same visit and test it again.
Backflow Preventer Service in San Diego, CA for Homes and Businesses
FKM Plumbing provides full-service backflow preventer services for homes and businesses across San Diego, CA. These devices are essential for preventing contaminated water from flowing back into your clean drinking water supply, a serious health hazard.
Our expertise includes:
- New backflow installation for irrigation, fire and commercial lines
- Repair and replacement of all backflow preventer models.
- Annual certified testing of RPZ, DCVA and PVB assemblies

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

Customers
Why Choose FKM Plumbing for Backflow Preventer in San Diego, CA?
Water providers usually require backflow assemblies to be tested on a set schedule, and missed deadlines can lead to fines or water shutoff. We make compliance simple by scheduling, testing and submitting reports for you.
- Property Value, A well-maintained plumbing system, including backflow prevention, adds value and safety to your property.
- Prevent Damage, Proper backflow prevention avoids costly contamination and potential damage to your home's entire plumbing system.
- Code Compliance, Make sure your property meets all local San Diego and state plumbing codes for backflow prevention.
Citywide Coverage
FKM Plumbing proudly serves every neighborhood of San Diego, offering prompt and reliable backflow preventer services. Whether you are in an older district or a newer subdivision, our plumbers are always ready to respond to your needs.
Experienced Team
Our team of plumbers has extensive experience with all types of backflow preventer systems common in Southern California. They undergo regular training to stay current on the latest devices, testing procedures, and local code updates in San Diego.
Safety-First Approach
Installations follow the plumbing code and the cross-connection program of your water provider. We pull permits when required and test every new assembly before it goes into service.
Trusted Certified San Diego Plumbing Services Professionals
At FKM Plumbing, we take pride in providing certified plumbing services throughout San Diego, 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 Backflow Preventer Services in San Diego, CA
Commercial Backflow Compliance in San Diego
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.

Irrigation Backflow Preventer Installation in San Diego
Sprinkler and drip systems are one of the most common sources of cross-connection risk because they sit in soil with fertilizers and pesticides. Many systems use a pressure vacuum breaker or a reduced pressure assembly installed above grade. We size and install the correct device and set it at the required height. Insulated covers or enclosures help protect it from weather and theft.
Residential Backflow Solutions in San Diego
For homeowners in San Diego, a backflow preventer is essential for protecting against contaminants from garden hoses, irrigation systems, or cross-connections within your home's plumbing. FKM Plumbing offers tailored 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.
Emergency Backflow Repair in San Diego, CA
A failed backflow preventer can pose an urgent threat to your water quality. If you suspect a serious issue or receive a notice from the water department, FKM Plumbing offers emergency backflow repair services in San Diego, CA. We prioritize these critical situations to quickly diagnose and fix the problem, restoring the integrity of your water system. Our emergency team is equipped to handle urgent repairs and protect your water supply without delay.
Backflow Preventer Installation in San Diego
Whether you are installing an irrigation system, a fire suppression line, or require a new backflow preventer for your domestic water supply, FKM Plumbing provides professional installation services. We assess your property's needs and local San Diego plumbing codes to recommend the most appropriate device type and size. Proper installation is key to long-term protection against contamination.
Backflow Preventer Repair in San Diego, CA
If your backflow preventer fails its annual test or shows signs of malfunction, FKM Plumbing offers expert 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, preventing potential water contamination in San Diego.
Freeze and Heat Protection for Backflow Preventers in San Diego, CA
Above-ground backflow assemblies are exposed to summer sun and winter cold. Mountain and high desert communities in Southern California do get hard freezes, so pipes there need insulation and proper winter care. Freezing can crack bodies and bonnets, while UV exposure breaks down plastic parts. We install insulated pouches, heated enclosures or lockable cages as needed. Protecting the assembly helps it pass testing and last longer.

Febco Backflow Preventer Experts in San Diego
Febco backflow preventers are commonly found in commercial and irrigation applications. FKM 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.
Backflow Preventer Near Me in San Diego, CA
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 coming up.
We know the reporting process used by water providers around San Diego. Our team submits results in the format they expect. That reduces paperwork headaches and follow-up calls.
FKM Plumbing at a Glance
- Fully licensed plumbing team covering San Diego, CA
- 24/7 emergency service with same-day scheduling
- Clear written estimates, no hidden fees
- 4.8-star rated by 754+ Southern California customers
San Diego Map
San Diego Information
- Population
- 1,388,320
- Area codes
- 619/858/442
- Service area
- San Diego and communities within 40 miles
- Nearby
- El Cajon, Chula Vista, San Marcos, Escondido
With busy irrigation systems and changing water demand, a properly functioning backflow preventer is vital for protecting San Diego, CA homes from possible water contamination.
Expert Services
Trust our professionals for reliable FKM Plumbing solutions in San Diego, CA.
Our Specialized Plumbing Services in San Diego, CA
At FKM Plumbing, we provide a complete range of plumbing services across San Diego, 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 Service Works in San Diego, CA
We take a thorough and efficient approach to protect your water supply in San Diego, CA.
Request a Quote
Call (213) 871-0701 with your test notice or a description of your assembly. We confirm pricing and schedule a certified technician.
Test the Assembly
We connect calibrated gauges and test every check and relief valve. Results are recorded on your provider's form.
Repair and File
If the assembly fails, we rebuild or replace it and retest. Then we file the passing report with your water provider.
Frequently Asked Questions About Backflow Preventer in San Diego
The cost for backflow preventer services in San Diego, CA varies. A standard backflow test typically 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 starting any work.
Water providers may send follow-up notices, charge fees or eventually suspend service. Scheduling early avoids these problems. We can often fit urgent tests in on short notice.
An RPZ, or Reduced Pressure Zone assembly, offers the highest level of protection, suitable for high-hazard cross-connections. A DCVA, or Double Check Valve Assembly, provides moderate protection and is typically used for low to medium hazard situations, like irrigation systems. The choice depends on the application and local code rules.
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.
The lifespan of a backflow preventer typically 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.
No. Testing must be performed by a certified backflow tester using calibrated equipment. Water providers only accept reports from certified testers.
FKM 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 high standards. Warranty details will be provided with your service agreement.
No, backflow preventer installation and major repairs should only be performed by a licensed and certified plumber. Improper installation or repair can lead to water contamination, which poses serious health risks and can result in steep fines from local authorities. Special tools and training are required.
What People Are Saying About Our Plumbing Experts?

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 · Carlsbad, 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 · Carlsbad, 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 · Vista, 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 · Chula Vista, 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 · Escondido, CA
Emily R.
I called FKM 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 Marcos, CA













