BackflowNear Test-Due Reminder

Backflow testing in Concord, CA

18 backflow testing businesses work within 25 miles of Concord, 4 of them based in town. Every one is on the approved tester list of EBMUD and City of San Diego.

18 businesses within 25 miles

Backflow testing companies near Concord

Matrix

100/100
✓ CA Utility-Approved Tester Verified ★ 3.6 (43 reviews) 3 certified testersOn EBMUD list Backflow Testing

115 Mason Cir, Concord, CA 94520 · under 1 mile from Concord

Call (925) 459-9200 Details Website

Verified Oct 2026 · Unclaimed listing

Escos Fire and Safety

90/100
✓ CA Utility-Approved Tester Verified ★ 5 (12 reviews) On City of San Diego list Backflow Testing

187 Mayhew Way #C, Walnut Creek, CA 94597 · 5 mi from Concord

Call (925) 217-0500 Details Website

Verified Oct 2026 · Unclaimed listing

L J Kruse Company

90/100
✓ CA Utility-Approved Tester Verified ★ 4.9 (327 reviews) On EBMUD list Backflow Testing

920 Pardee St, Berkeley, CA 94710 · 17 mi from Concord

Call (510) 644-0260 Details Website

Verified Oct 2026 · Unclaimed listing

Thorpe Design Inc

90/100
✓ CA Utility-Approved Tester Verified ★ 3.9 (21 reviews) On EBMUD list Backflow Testing

410 Beatrice Ct A, Brentwood, CA 94513 · 19 mi from Concord

Call (925) 848-6432 Details Website

Verified Oct 2026 · Unclaimed listing

Marina Plumbing Co

90/100
✓ CA Utility-Approved Tester Verified ★ 3.9 (8 reviews) On EBMUD list Backflow Testing

440 Boulder Ct #400, Pleasanton, CA 94566 · 25 mi from Concord

Call (925) 600-8955 Details Website

Verified Oct 2026 · Unclaimed listing

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 Concord 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 Concord

Who can test a backflow preventer in Concord?

A tester certified as California's rules require, and accepted by your water utility. The companies here are on the approved list of EBMUD and City of San Diego: companies allowed to file backflow test reports in that system. Check the notice your utility sent.

How many backflow testing companies serve Concord?

18 companies on the approved list of EBMUD and City of San Diego work within 25 miles of Concord, 4 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: City of San Diego approved backflow testers, City of San Diego Public Utilities Department.

Approved list: Sacramento County certified backflow prevention assembly testers, Sacramento County Environmental Management Department.

Approved list: EBMUD approved backflow testers, East Bay Municipal Utility District.

Approved list: Certified Backflow Prevention Device Testers, Los Angeles County Public Health.

Approved list: City of Long Beach backflow prevention testers, Long Beach Health.

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