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Location

Address
P O BOX 1923, Pleasanton, CA, 94566
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Valley Backflow Prevention Service Engineer

Valley Backflow Prevention Service at P O BOX 1923, Pleasanton, CA 94566, held a Engineer license (#439601) with the California contractors license board with an expiration date of 10-31-1985. We last verified the license was inactive on 12-11-2025.

Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 336,931 California contractors.

If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.

Valley Backflow Prevention Service Services

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Valley Backflow Prevention Service Contact Information

Address: P O BOX 1923, Pleasanton, CA 94566 Edit

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