BackflowNear Test-Due Reminder

Tim Guishard Enterprises

Backflow testing. 3508 Alpine Blvd, Alpine, CA 91901

2 utility approved lists
★ 4.5 4 Google reviews
100/100 BackflowNear score

Approvals

✓ On the Otay Water District list✓ On the Padre Dam list Phone matches its Google profile
Certified testerCertificate
Tim Guishard
Rene Rios

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.

Price reports

What a backflow test costs in Alpine

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Published prices nationwide

$29.99 to $100 per assembly

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.

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What Tim Guishard Enterprises' website says

It saysDetailsPage
Service areaAlpine, San Diego, El Cajon, Poway, Vista, Escondido and Oceansidetimswatersolutions.net
Licences, certifications, membershipsAmerican Water Works Association (AWWA), Backflow Prevention Assembly Tester (BPAT) licence and Cross-connection control specialist certificationtimswatersolutions.net

Read on timswatersolutions.net on October 11, 2026 (3 pages). This is what the business says about itself; we have not checked the credentials it names with the issuing body.

Where you will find Tim Guishard Enterprises

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

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Questions about Tim Guishard Enterprises

Is Tim Guishard Enterprises approved to test backflow assemblies?

Tim Guishard Enterprises is on the Otay Water District list and Padre Dam list, as of May 6, 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 Tim Guishard Enterprises do?

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

What areas does Tim Guishard Enterprises serve?

They are based in Alpine, California, within driving distance of Alpine, El Cajon, Santee, Ramona, Poway. Its website names Alpine, San Diego, El Cajon, Poway, Vista and Escondido and 1 more places as areas it serves (read October 11, 2026).

How do I reach Tim Guishard Enterprises?

Call (619) 589-9433. 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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