Backflow Preventer Installation in Ontario, CA
Protect your drinking water from contamination with expert backflow preventer installation in Ontario, CA from FKM Plumbing.
- Fast, Local Service
- Code-Compliant Systems
- Code Compliant
- Upfront Pricing
Get Backflow Compliant Without the Runaround in Ontario, CA.
We install the right assembly for your hazard level and file the test report with your water utility.
Code-Compliant Backflow Preventer Installation Across Ontario, CA
In Ontario, CA, a properly installed backflow preventer is essential for health and code compliance. FKM Plumbing provides expert installation of every common type of backflow preventer, chosen for your property's needs and local regulations.
Our expertise includes:
- Initial certification testing and water provider report filing
- Certified backflow prevention professionals.
- Insulated enclosures, heat tape and freeze protection for cold climates

Additional Plumbing Installation Services in Ontario, CA
We install water heaters, pumps, lines, and fixtures across Ontario, CA with precision workmanship that meets every local code.

Customers
Why Choose FKM Plumbing for Backflow Preventer Installation in Ontario, CA?
Choosing FKM Plumbing for your backflow preventer installation means partnering with experienced professionals dedicated to water safety. We know the requirements and plumbing codes in Southern California so every installation is done right.
- Water Safety, A backflow preventer keeps contaminated water from flowing back into your clean drinking water supply.
- Code Compliance, Many municipalities in Southern California require backflow preventers for certain plumbing connections, and we ensure you meet all local codes.
- Paperwork Handled, We submit test reports to your water provider so you remain compliant.
Citywide Coverage
FKM Plumbing provides full backflow preventer installation across every neighborhood of Ontario. Whether you are downtown or in the surrounding suburbs, our certified plumbers are ready to help you promptly.
Experienced Team
Our team of licensed plumbers has broad experience installing a wide range of backflow prevention devices. They receive ongoing training to stay current on the latest technology and local plumbing codes in Southern California.
Safety-First Approach
Safety and code compliance are paramount on every backflow preventer installation we perform. We install all devices according to Southern California health and plumbing regulations, protecting your water supply.
Trusted Certified Ontario Plumbing Services Professionals
At FKM Plumbing, we take pride in providing certified plumbing services throughout Ontario, 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 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 CertificationTrusted Backflow Preventer Installation Services in Ontario, CA
Commercial Backflow Preventer Installation in Ontario
Restaurants, salons, dental offices and light industrial buildings often need multiple backflow devices on soda machines, boilers, dishwashers and process water. We survey the building, identify each cross-connection and install containment and isolation assemblies as required. Work is scheduled after hours or on weekends when needed to keep from shutting down your business. You receive documentation for each device for your records and your water utility.

Emergency Backflow Preventer Replacement in Ontario
While installations are typically planned, sometimes an existing backflow preventer fails suddenly, creating an urgent need for replacement in Ontario. A compromised backflow device can lead to immediate contamination risks or code violations. FKM Plumbing offers emergency replacement service to quickly assess the situation, remove the faulty unit and install a new, code-compliant backflow preventer, restoring your water safety as quickly as possible.
Residential Backflow Preventer Installation in Ontario
For homeowners in Ontario, protecting your family's drinking water is the top priority. We install many types of backflow preventers, often required for irrigation systems, fire suppression lines or properties with alternative water sources. Our plumbers will assess your home's plumbing layout to recommend the most suitable device, meeting local health department regulations and protecting your potable water supply. We handle everything from small residential devices to larger systems.
Pressure Vacuum Breaker (PVB) Installation in Ontario, CA
For low-hazard applications, such as lawn irrigation systems in Ontario, CA, a pressure vacuum breaker, or PVB, is a popular and cost-effective backflow prevention device. PVBs protect against back-siphonage by letting air into the system when pressure drops. Our certified plumbers carefully install PVBs above the highest point of downstream piping, as code requires, to maintain effective protection. We also make sure of proper clearance and drainage.
Backflow Enclosures and Freeze Protection in Ontario, CA
Above-ground assemblies sit in direct sun in summer and can freeze on cold nights. Mountain and high desert communities in Southern California do get hard freezes, so pipes there need insulation and proper winter care. We install insulated enclosures, freeze blankets or heated cabinets based on your location. Enclosures also discourage theft, since brass backflow assemblies are a common target for scrap thieves. We choose enclosures with enough room for testing and repairs.
Pool and Spa Fill Backflow Protection in Ontario, CA
An auto-fill line or hose connection on a pool or spa creates a direct path for chlorinated water to reach the supply. We install the correct device on pool fill lines and check that hose bibbs have vacuum breakers. This simple step protects your household water and keeps you in line with local code. We can add the work when a pool is being built or remodeled.
Double Check Valve Assembly (DCVA) Installation in Ontario
The double check valve assembly, or DCVA, is a common backflow preventer for low-hazard applications where the consequences of backflow are not severe. In Ontario, DCVAs are frequently installed on fire sprinkler systems or irrigation lines. Our certified plumbers carefully install these devices, making sure both check valves operate correctly and are properly sealed to prevent backpressure or back-siphonage into the main water supply.

Backflow Preventer Brands We Install in Ontario
FKM Plumbing works with leading backflow preventer brands known for reliability and durability. We commonly install devices from manufacturers such as Watts, Wilkins by Zurn, Apollo and Conbraco. Our experience with these brands means you receive a high-quality, long-lasting solution built to withstand the water conditions and pressures in Ontario plumbing systems. We can also advise on models that best fit your budget and application.
Backflow Preventer Installation Near Me in Ontario, CA
When you search for 'backflow preventer installation near me' in Ontario, CA, you want a local, dependable plumber who understands the regulations in this area. FKM Plumbing is your trusted local expert, providing prompt and professional service right in your neighborhood. We make sure your installation meets all state and local codes.
When you search for 'backflow preventer installation near me' in Ontario, CA, FKM Plumbing is your reliable local expert. We are deeply familiar with the plumbing challenges and municipal requirements across the entire Ontario area.
FKM Plumbing at a Glance
- Fully licensed plumbing team covering Ontario, CA
- 24/7 emergency service with same-day scheduling
- Clear written estimates, no hidden fees
- 4.8-star rated by 754+ Southern California customers
Ontario Map
Ontario Information
- Population
- 182,457
- Area codes
- 909/951/626
- Service area
- Ontario and communities within 40 miles
- Nearby
- Chino, Eastvale, Upland, Rancho Cucamonga
With so many homes running irrigation systems and other auxiliary water uses, proper backflow prevention is critical for keeping drinking water safe in Ontario, CA.
Expert Services
Trust our professionals for reliable FKM Plumbing solutions in Ontario, CA.
Our Specialized Plumbing Services in Ontario, CA
At FKM Plumbing, we provide a complete range of plumbing services across Ontario, 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 Installation Process Works in Ontario, CA
We keep backflow installation easy so you can stay compliant without extra trips or delays.
Request a Quote
Contact FKM Plumbing at (213) 871-0701 to schedule an initial consultation. We will discuss your needs and provide a detailed, transparent quote for your backflow preventer installation.
Site Assessment
Our certified plumber will visit your Ontario property to assess your plumbing system, locate potential cross-connections and determine the type and size of backflow prevention device required by code.
Professional Installation
We meticulously install your new backflow preventer, making sure all connections are secure and the device is properly positioned and tested according to Southern California plumbing standards.
Frequently Asked Questions About Backflow Preventer Installation in Ontario
Residential pressure vacuum breakers typically cost $250 to $700 installed. Double check and RPZ assemblies for larger homes or businesses range from $800 to $3,500 or more depending on size and enclosure needs.
Yes, in many areas a permit is required for backflow preventer installation, especially for systems connected to the municipal water supply. FKM Plumbing will help you work through the permitting process in Ontario and make sure all required inspections are scheduled and passed.
Constant dripping or discharge from an RPZ relief valve, low pressure downstream and a failed annual test are typical signs. Visible corrosion or a cracked body from freezing also means service is needed.
Many jurisdictions require a permit for new backflow assemblies, especially on commercial properties. We check local rules and pull the permit when needed.
Backflow is when water flows the wrong way through a pipe and carries contaminants into the clean water supply. It can happen from back siphonage during a pressure drop or back pressure from pumps and other equipment.
Most residential installs take two to four hours including testing. Large commercial assemblies can take a full day, especially if piping must be reconfigured.
We install Watts, Febco, Wilkins by Zurn and Apollo assemblies. Each has easy to find repair kits, which keeps future service affordable.
FKM Plumbing stands behind our work with a full warranty on our backflow preventer installations. This warranty covers both the labor and the installed device, providing you with peace of mind. Specific warranty details will be included with your quote.
What People Are Saying About Our Plumbing Experts?

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 · Chino, 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 · Ontario, 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 · Chino, 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 · Chino, 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 · Chino, 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 · Jurupa Valley, CA













