Thorpe Design Inc, Brentwood, CA: Backflow Testing

Approvals

✓ On the EBMUD list Phone matches its Google profile

EBMUD approved backflow testers, as of September 1, 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.

Certified tester	Certificate	Expires
Jacob Castillo		November 2028

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 (925) 848-6432 Visit website More testers in California

Where you will find Thorpe Design Inc

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

Other backflow testers nearby

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Escos Fire and Safety	Backflow Testing	20 mi
Preferred Plumbing & Drain	Backflow Testing	20 mi

Questions about Thorpe Design Inc

Is Thorpe Design Inc approved to test backflow assemblies?

Thorpe Design Inc is on the EBMUD list, as of September 1, 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 Thorpe Design Inc do?

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

What areas does Thorpe Design Inc serve?

They are based in Brentwood, California, within driving distance of Concord, Pleasanton, San Leandro, Hayward, Oakland. Service areas are set by the business, so confirm yours when you call.

How do I reach Thorpe Design Inc?

Call (925) 848-6432. Their website is linked on this page.

Is this your business?

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