Backflow testing in Highland, CA

Certified backflow prevention assembly testers approved by East Valley Water District. Annual testing is required — find a local pro today.

Now accepting listingsSan Bernardino County, CA

Agency-approved testers serving Highland

Every tester below is on a local water-agency approved list. Claimed & verified businesses appear first; the rest can be reached at their agency-published number.

SP
#1 Son Plumbingon City of San Bernardino Municipal Water's approved list · Aug 2026

Highland, CA(909)904-3774

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Backflow testing requirements in Highland

Property owners in Highland served by East Valley Water District are required to have their backflow prevention assemblies tested annually. If you've received a testing notice, a certified tester can complete the test and file your results directly with your water agency — keeping your property compliant with no paperwork on your end.

Highland zip codes served: 92346