Paradise Valley doesn't run a water utility; homes get water from EPCOR, the City of Phoenix, the City of Scottsdale or Berneil Water Company depending on address, and backflow rules follow that provider. For testing, repair or a new assembly, call the number on this page to be connected with a local plumber in Paradise Valley.

What happens when you call
You'll be connected with an independent plumber who covers Paradise Valley. The first thing to share is your water provider, which appears on your bill, because it decides where the report goes and who the tester must be. Then describe the device: where it sits, what it serves (irrigation, a pool, a fountain, a guest house) and any notice you've received. The plumber can test it, explain a fail and quote any repair or replacement.
Cost factors
- How many devices the property has; larger lots can have several
- Assembly type and size
- Pass, or repair and retest
- Access to devices set deep in landscaping
- Town permits for new or relocated assemblies
Local conditions in Paradise Valley
Four water providers serve the Town, and the Town publishes a boundary map. Each provider sets its own cross-connection rules:
- EPCOR: customers install, maintain and test required assemblies; tests at installation, after repair or relocation and annually by a certified tester; reports within 30 days. Its Paradise Valley district water runs about 12 grains per gallon of hardness.
- City of Phoenix: the Planning and Development backflow program requires a test at installation, repair or relocation and at least annually by a certified tester on the City's list.
- City of Scottsdale: all testing, installation, retrofit or replacement must be done by a city-recognized certified backflow tester.
- Berneil Water Company: its requirements weren't found in the research behind this page; call the company before scheduling.
If your property sits near a provider boundary, don't assume a neighbor's rules match yours; two homes on the same street can be on different systems. Many properties in Town are also not on municipal sewer, but that doesn't change backflow on the water side.
Permits for new work come from the Town's Community Development Department, Building division, through its online Citizen Portal. The office doesn't accept submittals after 3:30 p.m.
Before the plumber arrives
- Check your bill for the provider name
- Walk the lot and note every device you can find
- Gather past test reports and any notices
- Open gates and clear access around Lincoln Drive or Tatum Boulevard frontage devices
Backflow Testing questions in Paradise Valley
How do I find out which water utility serves my address?
Who is allowed to test my backflow assembly?
Do I need a permit to install or replace a backflow preventer?
Does a pool fill line, fountain or water softener need backflow protection?
More plumbing services in Paradise Valley
Backflow Testing nearby
Helpful guides
Sources
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