Water Management - Backflow Certification

Certified Backflow Testing is available for both domestic and irrigation units throughout Northern California, except the farthest outlying areas. The cost of testing either unit type is based on a flat labor and materials rate per backflow unit up to 4 inches in diameter. All backflows over 4 inches will be quoted prior to testing.

We require a prior approval for incidental repairs before conducting the test. This way, small repairs can be made while we are on site, which saves you the additional expense of a return visit.

If the devices need to be tested during non-business hours or on the weekends, prices will be quoted prior to testing.

Contact us at 800-891-7710 for more information and to schedule your testing.

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Cagwin & Dorward
PO Box 1600
Novato, CA 94948-1600
1-800-891-7710