Backflow Testing Services in Phoenix, Arizona
Finding a reliable backflow testing professional in Phoenix, Arizona is essential for maintaining a safe water supply and staying in compliance with local regulations. Our directory lists 99 backflow testing companies serving Phoenix and surrounding communities including Tempe Junction, Glendale, Tempe.
Whether you need annual backflow testing, RPZ (Reduced Pressure Zone) valve inspection, or cross-connection control services, the providers listed below offer professional testing services for both residential and commercial properties throughout the Phoenix area.
Most water authorities in Arizona require annual testing and reporting for all backflow prevention assemblies. A certified backflow tester will inspect your devices, perform the required differential pressure tests, and file compliance reports with your local water authority.
Browse the listings below to compare ratings, read customer reviews, and contact backflow testing professionals near Phoenix directly. Use the filters above to narrow results by rating, review count, or specific services like RPZ testing and preventer installation.
Data source: Google Maps. Always verify licensing with your local water authority.
99 listed providers
Option One Plumbing
Testing Verified · Phoenix, AZ · 5 mi
Backflow Parts USA
Phoenix, AZ · 6 mi
“The level of Customer Care this company provides is something that we almost never experience anymore. I am just a homeowner with very little plumbing experience, but these folks were able to figure…”
Read more on GoogleBackflow Prevention Device Inspections
Testing Verified · Phoenix, AZ · 6 mi
“BPDI is a great company to work with! The staff is friendly and goes above and beyond to accommodate. The technician (Eric) was super efficient and worked with our schedule. Adrienne was very helpful…”
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Metering Services Inc
Testing Verified · Tempe, AZ · 6 mi
“We are a Taco Bell franchise with 14 stores. Metering Services has been one of those vendors who is consistently 100% on top of every need we have. Any time I get a letter from one of the cities that…”
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Cross Connection Environmental
Testing Verified · Tempe, AZ · 7 mi
“Knowledge people and great Service, been working with them for 17yrs and no issues not handled completely”
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Scottsdale Plumbing Co
Scottsdale, AZ · 9 mi
“I requested a service call on a Wednesday and was scheduled for a plumber to come to my location at 8 AM the next morning by a friendly employee in the Scheduling Department. Plumber Nick arrived…”
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ABC Water Works Inc
Testing Verified · Phoenix, AZ · 9 mi
“I work for an HOA management company and regularly use ABC Water Works for backflow inspections and repairs. The staff is always friendly and professional. They communicate clearly on the status of…”
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City Wide Backflow Prevention Co
Testing Verified · Tempe, AZ · 9 mi
“They were quick and affordable. They also did a terrific job.”
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City Wide Plumbing & Service Co.
Testing Verified · Tempe, AZ · 9 mi
“Dave was the technician that serviced our problem . The gas had been turned off and locked out by South West Gas Because of a minor electrical fire . Sw Gas required a pressure test on the gas line…”
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Scottsdale Flow Irrigation LLC
Scottsdale, AZ · 10 mi
“I called to get an assessment of what I thought was a leak in my sprinkler causing excessive moist dirt. Ryan came by and quickly determined the problem. He informed me right away. He checked the…”
Read more on GoogleA P Fire Protection
Glendale, AZ · 10 mi
“Myles was the sales rep I worked with to make the appointments and get quotes for replacing a sprinkler head as well as servicing my fire extinguishers. He was very professional, prompt and…”
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Somers Plumbers - Phoenix Plumbing Company
Phoenix, AZ · 11 mi
Sprinkler Doctors
Glendale, AZ · 12 mi
“My drip system was suffering from an inoperative zone and as a result I lost one tree and nearly lost two others. I initially called a competitor and after a $90 service call the technician quoted me…”
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Plumbing Masters
Peoria, AZ · 13 mi
“Last Saturday, December 13, 2025 my water heater went out and I found this company online. It had a great star rating, and I'm happy to say they live by this rating. A person by the name of: Levi…”
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Frequently Asked Questions About Backflow Testing in Phoenix
Many municipalities in Arizona require annual backflow testing for commercial and residential properties with backflow prevention devices. Your local water authority in Phoenix can confirm the exact testing schedule and deadlines for your area. Failing to test on time may result in fines or water service interruption.
Some certified testers near Phoenix offer same-day or emergency scheduling for urgent situations such as a failed device, a compliance deadline, or a new construction inspection. Check individual provider listings above for availability, or request a quote to find a tester who can accommodate your schedule.
Look for testers with active state certification, strong Google reviews, and experience with your type of backflow preventer (PVB, DCVA, or RPZ). Ask whether they file compliance reports with your local water authority and request a written estimate before scheduling. Our directory lists testers near Phoenix with real customer reviews.
RPZ (Reduced Pressure Zone) testing verifies that your reduced pressure backflow preventer is functioning correctly to protect your water supply from contamination. A certified tester uses specialized gauges to measure differential pressures across the assembly. RPZ devices are typically required for high-hazard connections.
Most jurisdictions in Arizona require backflow testers to hold a current certification from an approved training program, typically involving classroom instruction, a hands-on practical exam, and continuing education credits. Some municipalities maintain their own approved-tester lists. Always verify certification before hiring.
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