BACKFLOW PREVENTERS
Doing our part to help protect your potable water supply.
Overview
A backflow prevention assembly commonly referred to as a “backflow preventer” keeps water inside a water piping system, making sure it travels in one direction only: from the main water supply all the way to its intended use. Its primary function is to prevent pollutants or contaminants from entering the public water supply when backpressure or back-siphonage occurs.
Residential and commercial backflow prevention assemblies require annual backflow testing to be compliant with Title 17 of the California Code of Regulation. Backflow preventer testing helps keep the main water supply clean for the health and safety of everyone.
Allow our experienced technicians to help you.
Backflow pREVENTer Assemblies
Maintaining backflow prevention assemblies is critical in providing safe and clean water for everyone. Backflow preventer needs vary depending on the intended purpose they are being used for. Some properties require the installation of more than one backflow prevention assembly while others have very specific installation criteria to ensure an uninterrupted water supply. These assemblies are required to be periodically tested by certified personnel to ensure that the backflow preventers continue to provide the required protection. In cases where a backflow preventer fails minimum testing requirements, a backflow preventer repair is required.

Fire Safety First technicians work on more than just fire line backflow preventers. Being a C-36 licensed plumbing contractor, we work with a variety of different businesses and organizations to assure water remains clean and safe for everyone. From facilities that require backflow preventers for their fire sprinkler systems, irrigation systems, domestic systems, cooling tower, boiler makeup, or any other commercial water system you can rely on Fire Safety First to take care of you. We will work with you to schedule dates and service times when water is not in use to cause minimal disruption to your business.
- Backflow Preventer Installation
- Backflow Preventer Inspection
- Backflow Preventer Testing
- Backflow Preventer Repair
- Backflow Preventer Cage Installation
- Backflow Anti-Theft Devices

California State Law requires backflow preventer testing to be performed annually by a certified backflow tester. We work closely with you to have your backflow prevention assembly properly tested and address any irregularities we may find.
Fire Safety First technicians begin each test by attaching a backflow gauge to the test port of a backflow preventer. We then shut the water off and run the testing procedure verifying that:
- Check valves are holding at the required psi to prevent backflow.
- Air inlet ports are opening at the required psi to prevent backflow.
- Relief valves open when necessary at the required psi to prevent backflow.
After backflow testing is completed, we open the water supply valves, restoring the water supply. Fire Safety First will then provide the annual backflow testing documentation of your device to the water department or Authority Having Jurisdiction (AHJ), assuring your annual testing compliance requirements have been met. Learn more about the importance of backflow preventer testing in our blog post.
If the backflow preventer is found to be faulty, we will work with you to schedule a repair with a Fire Safety First backflow repair technician.

Once backflow preventer repair is deemed necessary for your facility or business our technicians will disassemble the backflow preventer assembly and use the required manufacturer parts to repair it, reassemble it, and retest it. Fire Safety First technicians hold years of hands-on experience dealing with various types of repairs.
The most common backflow preventer repairs we run into are:
- Faulty 1st and/or 2nd Check Valves
- Rubber Repair Kit Replacement
- Control Valve Replacement
- Internal or External Corrosion
If the body of a backflow preventer has extensive corrosion that compromises the device, it must be replaced entirely. Fire Safety First technicians will speak with you to determine what backflow preventer assembly will work best for your system and schedule a backflow preventer installation.

The performance of your piping system and its reliability are our greatest focus when providing mechanical plumbing services to your building. From water piping to natural gas piping, we work on piping systems that are located overhead on the inside of buildings or underground on the outside of buildings.
Experience the advantage of working with a company that can troubleshoot and repair defective components potentially saving you thousands of dollars from complete replacement costs.
Mechanical Plumbing Services We Provide:
- Earthquake Shut-Off Valve Installation On Natural Gas Piping
- Above-Ground Piping Repairs and Installation
- Underground Piping Repairs and Installation
- Regulator Rebuild and Replacement
- Pump Repair and Replacement
- Valve Replacement
- Sump Pumps
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