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 37 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.
37 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…”
Read more on Google
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…”
Read more on Google
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”
Read more on Google
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…”
Read more on Google
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…”
Read more on Google
City Wide Backflow Prevention Co
Testing Verified · Tempe, AZ · 9 mi
“They were quick and affordable. They also did a terrific job.”
Read more on Google
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…”
Read more on Google
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…”
Read more on Google
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…”
Read more on Google
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…”
Read more on Google
Diamondback Plumbing
Testing Verified · Phoenix, AZ · 14 mi

Mr. Rooter Plumbing of Phoenix Arizona
Mesa, AZ · 14 mi
The Plumber Guy
Peoria, AZ · 15 mi
“I had an emergency plumbing situation shortly after purchasing my condo, and I can’t say enough good things about the entire team. Roxy was calm, professional, and incredibly helpful in coordinating…”
Read more on Google
Phoenix Water Softeners
Chandler, AZ · 15 mi
“I am incredibly satisfied with the water softening equipment I purchased. The system works flawlessly, significantly improving the water quality in my home. Installation was straightforward, thanks…”
Read more on GoogleReddi Services
Testing Verified · Peoria, AZ · 15 mi
“We have used Reddi Services for HVAC and plumbing, since we bought our house back in 2018. Thanksgiving 2025, I went to put groceries in our garage freezer and found our hot water tank was leaking…”
Read more on GoogleRoto-Rooter Plumbing & Water Cleanup
Testing Verified · Chandler, AZ · 15 mi
“For my plumbing issue I was disappointed because my window was 10:39-12:39 and then I kept getting texts it would be later (good communication about being late). It was 4:15 before the plumber…”
Read more on Google
Allegiance Water Services
Scottsdale, AZ · 15 mi
“I was too hasty with the first review below where a gave them a 3 rating. I am revising this to a 5 because today they did follow through on their commitment to pick up the old brine. They needed a…”
Read more on Google
Mason Pro Services
Chandler, AZ · 15 mi
“Mitchell and Masons Pro Services have always provided an amazing professional experience. Mitchell has done 4 different plumbing jobs in my house. All jobs were completed with excellence. Last year I…”
Read more on GoogleFerguson Waterworks
Chandler, AZ · 16 mi
“We have a lot of work going on and with Ferguson as our supplier, they do an excellent job, at the counter as well. Especially Dallas, he is very professional and always making sure we have the right…”
Read more on Google
Rainwater Plumbing and HVAC
Testing Verified · Chandler, AZ · 16 mi
“I had a scary event at my home with a gas leak resulting in my gas been turned off. A plumber was recommended. A call was made to Rainwater Plumbing and Walter responded and within two hours he was…”
Read more on Google4 Peaks Fire Protection LLC
Testing Verified · Mesa, AZ · 16 mi
“I had a great experience with Tyler and 4 Peaks Fire. The city of Scottsdale required my to add a backflow prevention unit on my business. 4 Peaks was responsive, answered questions, and was inline…”
Read more on GoogleThe Plumbing Plug
Testing Verified · Chandler, AZ · 17 mi
“This guy l knows exactly what he is doing. I had a filter put in to my kitchen faucet and refrigerator. He had to drill a hole into my granite countertop, which is an entire island, and he did it…”
Read more on Google
Plumbers Near Me - Water Heater & Plumbing Services
Chandler, AZ · 17 mi
“Plumbers Near Me, LLC sent someone over this morning to swap out my old water heater. The new unit was installed in a couple of hours without any hassle. They replaced the faulty thermostat and made…”
Read more on Google
Beebe Plumbing
Testing Verified · Peoria, AZ · 17 mi
“Referred to me by another customer. Called them out for a for a major Gas Line install. They tapped into existing gas lines set for my furnace in order to connect a gas range, a second line for a gas…”
Read more on Google
Bleuwave Plumbing
Chandler, AZ · 20 mi
“Should have hired them in the first place. Things to know: - My house was built and designed by the first owner of my property. - I purchased a “whole house filtration system” and I needed my house…”
Read more on Google
Smiley Plumbing
Testing Verified · Peoria, AZ · 20 mi
“Found out we had a leak after traveling. Came the same day we called and was able to tell us what was wrong and fix it same day. He was incredibly friendly, gave great advice about the leak…”
Read more on GoogleHelpful resources
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.
Nearby Cities in Arizona
For Providers
Own a Backflow Testing Business?
Claim your listing to manage your profile, track leads, and get premium placement.





