Backflow Preventer in Hawthorne, CA
Keep irrigation, fire lines and commercial equipment compliant in Hawthorne, CA with professional backflow preventer service.
- Prompt, Certified Technicians
- Certified Backflow Testers
- Guaranteed Workmanship
- Upfront Pricing
Pass Your Backflow Test and Stay Compliant in Hawthorne, CA.
Contact FKM Plumbing for dependable backflow prevention solutions for your property.
Your Local Backflow Preventer Experts in Hawthorne, CA
FKM Plumbing handles the full backflow compliance process, from yearly testing to repairs and new installations. Our certified testers use calibrated test kits and submit results to your water provider so you can stop worrying about the deadline.
Our expertise includes:
- Licensed backflow preventer testing and certified reporting.
- Installation for irrigation, fire suppression, and domestic lines.
- New backflow installation for irrigation, fire and commercial lines

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

Customers
Why Choose FKM Plumbing for Backflow Preventer in Hawthorne, CA?
Protecting your water supply from contamination is not just about compliance, it is about public health. Backflow events can bring harmful substances into your drinking water.
- Water Quality, Our services directly protect your family from contaminated water sources, a vital concern for health and peace of mind.
- Code Compliance, Make sure your property meets all local Hawthorne and state plumbing codes for backflow prevention.
- Expert Plumbers, Our technicians are specifically certified and trained in backflow prevention device testing and repair.
Citywide Coverage
No matter where you are located within Hawthorne, CA, FKM Plumbing has your backflow prevention needs covered. We understand the varied plumbing systems across the area and provide tailored solutions to each homeowner.
Experienced Team
Each tester is certified and keeps up with continuing education. They understand cross-connection control rules and how they apply to different property types.
Safety-First Approach
Safety is paramount in all our backflow preventer services, especially when dealing with your drinking water supply. We follow all health and safety regulations, using only approved parts and methods to protect your home in Hawthorne.
Trusted Certified Hawthorne Plumbing Services Professionals
At FKM Plumbing, we take pride in providing licensed, certified plumbing services throughout Hawthorne, 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.
Call Us Now
PHCC Plumbing Contractor Recognition
Better Business Bureau (BBB) Accreditation
Angi Certified Pro
ISO 9001 Quality Management CertificationCode-Compliant Backflow Preventer Services in Hawthorne, CA
Emergency Backflow Repair in Hawthorne, CA
A failed backflow preventer can pose an immediate 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 Hawthorne, CA. We prioritize these urgent situations to quickly diagnose and fix the problem, restoring the integrity of your water system. Our rapid response team is equipped to handle urgent repairs and protect your water supply without delay.

Backflow Preventer Testing in Hawthorne
FKM Plumbing provides certified backflow preventer testing required by many Southern California municipalities. We use specialized equipment to check the device, making sure it properly prevents reverse flow. Our technicians are licensed to perform these annual tests and submit all required reports to your local water authority, helping you avoid fines and stay compliant. We test all common types, including RPZs, DCVAs, and PVBs, with accurate readings and careful checks.
Commercial Backflow Compliance in Hawthorne
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 Repair and Rebuild in Hawthorne, CA
Common failures include worn check valve rubbers, debris stuck under seats and relief valves that drip constantly. We isolate the assembly, disassemble it and replace the worn parts with the manufacturer rebuild kit. Then we retest to confirm it passes. Rebuilding usually costs much less than replacing the entire assembly.
Watts Backflow Preventer Service in Hawthorne, CA
Watts is a leading manufacturer of backflow prevention devices, known for dependability and a wide range of products. FKM 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.
Fire Line Backflow Testing in Hawthorne
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.
Backflow Preventer Cost & Value in Hawthorne, CA
The cost of backflow preventer services in Hawthorne, 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 invaluable protection for your health and avoids potential fines or costly contamination cleanup. We offer transparent pricing and detailed estimates before any work begins.

Irrigation Backflow Preventer Installation in Hawthorne
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 proper height. Insulated covers or enclosures help protect it from weather damage and theft.
Backflow Preventer Near Me in Hawthorne, CA
We know the reporting process used by water providers around Hawthorne. Our team submits results in the format they expect. That cuts down on paperwork headaches and follow-up calls.
Choosing a local company like FKM Plumbing for your backflow preventer needs means personal service and a commitment to our community in Hawthorne. We pride ourselves on being accessible and responsive to all our customers, providing confidence that your water supply is safe.
FKM Plumbing at a Glance
- Licensed and insured plumbers serving Hawthorne, CA
- Same-day appointments and 24/7 emergency response
- Clear written estimates, no hidden fees
- 4.8-star rated by 754+ Southern California customers
Hawthorne Map
Hawthorne Information
- Population
- 83,364
- Area codes
- 310/424/323
- Service area
- Hawthorne and communities within 40 miles
- Nearby
- Inglewood, Redondo Beach, Torrance, Florence-Graham
With busy irrigation systems and changing water demand, a properly functioning backflow preventer is vital for protecting Hawthorne, CA homes from potential water contamination.
Expert Services
Trust our professionals for reliable FKM Plumbing solutions in Hawthorne, CA.
Our Specialized Plumbing Services in Hawthorne, CA
At FKM Plumbing, we provide a complete range of plumbing services across Hawthorne, 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 Hawthorne, CA
Our backflow preventer service process is straightforward and designed for your convenience and safety.
Request a Quote
Call (213) 871-0701 or fill out our online form to schedule your backflow preventer service. We'll gather details about your needs and set up an appointment time.
On-Site Assessment
A certified technician arrives at your Hawthorne 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 Hawthorne
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.
Signs of a failing backflow preventer include discolored water, unusual tastes or odors in your water, water leaking from the relief valve, or a sudden drop in water pressure. If you notice any of these issues, it is important to have your device inspected right away.
Signs of a failing backflow preventer include discolored water, strange odors from your tap, a sudden drop in water pressure, or visible leaks around the device itself. If you notice any of these, contact a professional plumber right away to assess the issue.
Constant dripping from the relief valve, low water pressure and visible cracks are common signs. Discolored water or a failed test notice also indicate a problem. Prompt repair keeps you in compliance.
Backflow preventers stop contaminated water from flowing backward into the public supply during pressure drops. Irrigation, fire lines and commercial equipment are frequent sources of contamination. Water providers require them to protect public health.
Yes, new backflow preventer installations or major replacements often require a plumbing permit from the Hawthorne building department. This makes sure the installation meets local codes and is inspected for proper function. FKM Plumbing can help you navigate the permitting process.
Backflow prevention is essential because of changing water pressures, main breaks and fire flow that can drop pressure suddenly, and the potential for cross-connections from irrigation systems or industrial processes. These factors increase the risk of contaminated water entering the public supply, making a working backflow preventer a must.
We service Watts, Febco, Zurn Wilkins, Apollo and other common brands. Our trucks carry rebuild kits for popular models. Less common parts can usually be ordered quickly.
What People Are Saying About Our Plumbing Experts?

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 · Compton, 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 · Hawthorne, 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 · Redondo Beach, 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 · Torrance, 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 · Carson, 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 · Redondo Beach, CA













