Backflow Prevention Service in Phoenix, AZ
Ensuring Clean Water Safety
Backflow happens when a change in water pressure causes dirty water from your irrigation system, pool, or fire lines to “flow backward” into your home’s clean drinking water supply. This is a serious health risk and is why Phoenix codes require backflow prevention devices. We are your local partners for backflow prevention, offering expert installation and the necessary annual testing to keep your water safe and your home in compliance.
Specialty Systems We Service
Some plumbing work doesn’t fit neatly into a category. These are the specialty systems we install, repair, and inspect across Arizona.
Sump Pumps
Rare in Phoenix, more common in Northern AZ basements and crawlspaces. We install, repair, and replace primary and battery-backup pumps.
Pressure Regulators (PRVs)
Phoenix water pressure can spike high enough to damage fixtures and water heaters. A working PRV protects your whole home.
Backflow Prevention
Required on irrigation systems, fire lines, and certain commercial setups. We test, certify, and repair to AZ code.
Hot Water Recirculation Pumps
Get hot water at the tap in seconds instead of minutes — a comfort upgrade and a water-saver.
Whole-Home Shut-Off Valves and Smart Water Systems
Automatic leak-detection and shut-off systems that catch a problem before it becomes damage. We install and program them.
Outdoor Spigots and Frost-Rated Hose Bibs
Standard bibs don't survive a Flagstaff winter. We install frost-free and properly insulated alternatives.
No matter your situation, our plumbers provide service you can rely on.
What is Backflow Testing?
Because backflow preventers have internal seals and moving parts, they can wear out over time without you ever noticing. Annual testing is required by most local water departments to ensure the device is still doing its job. Our certified technicians use specialized gauges to measure the pressure across the device, making sure it will close instantly if a pressure drop occurs in the main line.
Installation and Routine Maintenance
Whether you are putting in a new sprinkler system or need to replace a failing backflow unit, we handle the job from start to finish. We ensure the device is installed in a spot that is easy to access for testing and protected from the elements. If your device fails a test, we carry common repair kits to fix the internal springs and seals right then and there, restoring your protection immediately.
Check Your Backflow System
Do you have a backflow preventer that hasn’t been tested in over a year? Call Liberty Plumbing today. We provide professional testing and maintenance to keep your family’s water clean and safe.