Mike Testa Plumbing, Inc., San Rafael, CA: Backflow Testing

Approvals

✓ On the North Marin Water District list Phone matches its Google profile

North Marin Water District backflow assembly tester list, as of January 20, 2026. Being on this list means the utility lets the company file backflow test reports in its water system; it is not a state license.

Ask for the certificate number of the tester who will do your test, and check that your own water utility accepts reports from this company.

Call (415) 479-0110 Visit website More testers in California

Price reports

What a backflow test costs in San Rafael

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Published prices nationwide

$29.99 to $100 per assembly

$0$25$50$75$100$125

Based on 14 published prices · Read Oct 2026 Prices testing businesses list on their own websites, from our cost guide. Listed prices, not what people paid.

Every published price, with its source: what a backflow test costs.

Failed test? Published repair, rebuild and replacement prices: what a backflow repair or replacement costs.

Where you will find Mike Testa Plumbing, Inc.

These are the city pages close enough for this business to appear on.

Other backflow testers nearby

Business	Services	Distance
Grier Argall Plumbing, Inc.	Backflow Testing	4 mi
Marin Mechanical	Backflow Testing	4 mi
Nerviani’s Backflow Testing & Repair	Backflow Testing	5 mi
Alansi’s Rooter & Plumbing	Backflow Testing	12 mi
Olivero Plumbing Co., Inc.	Backflow Testing	14 mi
City Mechanical Inc.	Backflow Testing	15 mi

Questions about Mike Testa Plumbing, Inc.

Is Mike Testa Plumbing, Inc. approved to test backflow assemblies?

Mike Testa Plumbing, Inc. is on the North Marin Water District list, as of January 20, 2026. That means the utility lets the company file backflow test reports in its system; it is not a state license. Ask for the tester's certificate number before the test.

What does Mike Testa Plumbing, Inc. do?

Their listing covers backflow testing. Call to confirm the service you need, because offerings change.

What areas does Mike Testa Plumbing, Inc. serve?

They are based in San Rafael, California, within driving distance of San Rafael, Hercules, Petaluma, San Francisco, Oakland. Service areas are set by the business, so confirm yours when you call.

How do I reach Mike Testa Plumbing, Inc.?

Call (415) 479-0110. Their website is linked on this page.

Compiled from public records and public business information. Not an endorsement. Check licensing before you hire.

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