BackflowNear Test-Due Reminder

Backflow testing in Glendale, AZ

135 backflow testing businesses work within 25 miles of Glendale, 15 of them based in town. Every one is on the approved tester list of 4 water utilities.

135 businesses within 25 miles

Backflow testing companies near Glendale

What the badges mean
✓ AZ Utility-Approved Tester Verified On the city list
The company is on a water utility's own approved list (the second badge names the list). That is the utility's approval, not a state license, and it counts for that utility.
3 certified testers
How many certified testers the roster lists at this business.
★ 4.8 (25 reviews)
The Google rating, shown as Google reports it. It does not change the order.

Order is by our quality score, never by payment. How we verify listings.

AP Fire Protection

90/100
✓ AZ Utility-Approved Tester Verified ★ 4.3 (36 reviews) On City of Phoenix list Backflow Testing

7612 N 71st Ave, Glendale, AZ 85303 · 1 mi from Glendale

Call (602) 571-3234 Details Website

Verified Oct 2026 · Unclaimed listing

Robins Plumbing, Inc

90/100
✓ AZ Utility-Approved Tester Verified ★ 4.9 (1114 reviews) On City of Phoenix list Backflow Testing

5955 W Peoria Ave #5160, Glendale, AZ 85302 · 2 mi from Glendale

Call (623) 486-4657 Details Website

Verified Oct 2026 · Unclaimed listing

Cool Blew Inc

90/100
✓ AZ Utility-Approved Tester Verified ★ 4.8 (1074 reviews) On City of Phoenix list Backflow Testing

8927 W Bloomfield Rd #135, Peoria, AZ 85381 · 5 mi from Glendale

Call (623) 872-2900 Details Website

Verified Oct 2026 · Unclaimed listing

Reddi Services Inc

90/100
✓ AZ Utility-Approved Tester Verified ★ 4.9 (1729 reviews) On City of Phoenix list Backflow Testing

12268 92nd Dr, Peoria, AZ 85381 · 5 mi from Glendale

Call (602) 385-4348 Details Website

Verified Oct 2026 · Unclaimed listing

Impact Fire Services

90/100
✓ AZ Utility-Approved Tester Verified ★ 3 (10 reviews) On City of Phoenix list Backflow Testing

11001 N 24th Ave #612, Phoenix, AZ 85029 · 5 mi from Glendale

Call (623) 748-4755 Details Website

Verified Oct 2026 · Unclaimed listing

Pruits Plumbing, LLC

90/100
✓ AZ Utility-Approved Tester Verified ★ 4.6 (1070 reviews) On City of Phoenix list Backflow Testing

11049 N 23rd Dr #102, Phoenix, AZ 85029 · 5 mi from Glendale

Call (602) 944-8777 Details Website

Verified Oct 2026 · Unclaimed listing

Robins Plumbing

90/100
✓ AZ Utility-Approved Tester Verified ★ 4.9 (1425 reviews) On City of Scottsdale list Backflow Testing

2802 N 37th Ave, Phoenix, AZ 85009 · 6 mi from Glendale

Call (623) 299-7734 Details Website

Verified Oct 2026 · Unclaimed listing

ATS Plumbing, Inc

90/100
✓ AZ Utility-Approved Tester Verified On City of Phoenix list Backflow Testing

7220 N Glen Harbor Blvd #100, Glendale, AZ 85307 · 6 mi from Glendale

Call (602) 943-6120 Details Website

Verified Oct 2026 · Unclaimed listing

Anthony's Plumbing

90/100
✓ AZ Utility-Approved Tester Verified ★ 4.8 (644 reviews) On City of Phoenix list Backflow Testing

1201 N 54th Ave #127, Phoenix, AZ 85043 · 6 mi from Glendale

Call (623) 936-5400 Details Website

Verified Oct 2026 · Unclaimed listing

WD Manor

90/100
✓ AZ Utility-Approved Tester Verified ★ 4.6 (23 reviews) On City of Phoenix list Backflow Testing

1838 N 23rd Ave, Phoenix, AZ 85009 · 7 mi from Glendale

Call (602) 253-0703 Details Website

Verified Oct 2026 · Unclaimed listing

Copperstone Plumbing

90/100
✓ AZ Utility-Approved Tester Verified ★ 5 (49 reviews) On City of Phoenix list Backflow Testing

16845 N 29th Ave Ste 1 PMB 116, Phoenix, AZ 85053 · 7 mi from Glendale

Call (602) 790-7565 Details Website

Verified Oct 2026 · Unclaimed listing

HQ Plumbing & Air

90/100
✓ AZ Utility-Approved Tester Verified ★ 4.9 (51 reviews) On City of Phoenix list Backflow Testing

17423 N 25th Ave #1, Phoenix, AZ 85023 · 8 mi from Glendale

Call (602) 675-1555 Details Website

Verified Oct 2026 · Unclaimed listing

Metro guide: Backflow testing in Phoenix: every utility's rules, filing portals and published prices in one place.

City of Glendale Water Services (Cross Connection Control Program): backflow test rules

  • Who must test. Glendale City Code Chapter 33 requires installation, testing and maintenance of approved backflow devices at every service connection, and commercial customers must have assemblies inspected annually. Source.
  • Notices and deadlines. Accurate test reports must be submitted within or by the end of the month they are due; testers are advised to get the owner's notification letter before testing. Source.
  • How the report is filed. Test reports, gauge calibrations, tester certifications and company documents are submitted online through the SAMS backflow tester portal (crossconnection.njbsoft.com/glendaleaz). Source.
  • Tester registration. Testers who want to work in Glendale submit a Tester Application and Agreement with current tester certification, gauge calibration, contractor information and an insurance certificate through the SAMSXC Unified Tester Portal. Source.
  • Fees. Glendale requires a backflow installation permit for all new installations, retrofits and replacements, and will not accept reports on new or replaced assemblies without a permit and inspection. No fee amount is stated. Source.

Everything about City of Glendale Water Services (Cross Connection Control Program)'s backflow program

Never miss your annual backflow test

Most water utilities require the backflow assembly on an irrigation, fire or commercial line to be tested every year, and a missed test can mean a shutoff notice. Tell us when yours was last tested in Glendale and we'll text you a month before it is due, with certified local testers ready to book.

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Backflow testing questions in Glendale

Who can test a backflow preventer in Glendale?

A tester certified as Arizona's rules require, and accepted by your water utility. The companies here are on the approved list of 4 water utilities: companies allowed to file backflow test reports in that system. In Glendale, see City of Glendale Water Services (Cross Connection Control Program)'s rules below.

How many backflow testing companies serve Glendale?

135 companies on the approved list of 4 water utilities work within 25 miles of Glendale, 15 of them based in town.

How often do I need a backflow test?

Most utilities require a test when the assembly is installed and then every year. Your utility's notice gives the due date and how the tester files the report.

Approved list: Approved Backflow Tester Company List, City of Phoenix.

Approved list: City of Scottsdale certified backflow testers, City of Scottsdale Water Resources.

Approved list: City of Glendale approved certified backflow testers, City of Glendale Water Services.

Approved list: Arizona Water Company state-certified backflow testers, Arizona Water Company.

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