Backflow Prevention in Phoenix, AZ — Keep Dirty Water Out of Clean Lines

When city pressure drops, water can move the wrong direction and pull irrigation or pool water back into your home's supply. A backflow preventer stops that. We install, repair, and replace these devices on homes and irrigation systems around the Valley.

When You Need Backflow Prevention

You need attention to backflow when a device is leaking or spitting water, when it has frozen or been hit by a mower, when an irrigation system was added without one, when you are adding a pool or water feature, or when a device fails a required test.

Phoenix landscapes usually mean an irrigation system, and irrigation water sits in pipes with fertilizer and soil bacteria. Sun and heat also break down device seals and bonnets over the years. Devices are required in many situations, and a failed one is both a health risk and a code problem.

Our Backflow Prevention Process

We inspect the existing assembly, identify the type, and check that it is the right device for the connection and sitting at the correct height. Then we tell you whether it needs a rebuild kit or full replacement.

Repairs mean fresh internals: poppets, springs, seals, and check assemblies. Replacements mean cutting in a correctly sized device with unions and shutoffs so it can be tested and serviced. We can also add hose bib vacuum breakers and fix cross-connections we spot. Everything gets pressure tested and checked for leaks before we leave. Most work takes two to four hours.

Backflow Prevention Cost in Phoenix

Price depends on the device type and size, whether a rebuild will work, and how the assembly is plumbed and mounted. You always get a flat price in writing before any work starts, so nothing changes at the end. There is no trip fee, and we do not charge extra for evenings or weekends. If we open things up and find more damage, we stop, show you what we found, and let you decide. Call 602-842-2344 and we will explain what your job will likely involve.

Why Choose Us

We check the whole connection, not just the device, so an unprotected hose bib or a wrong install height gets caught. Roman Flow Plumbing is owner-operated, so the person who picks up the phone is the person who works on your home. We are a licensed, bonded, and insured Arizona plumbing contractor (ROC #357355), and every job is backed by a warranty on parts and labor. Most Phoenix and West Valley calls get same-day service, and we answer the phone 24/7 when water is running where it should not be.

Backflow work is part of our Water Pressure & Valve Services in Phoenix, along with pressure and shut-off valve services.