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Backflow Testers


AWWA Certified Backflow Testers, Los Angeles County Certified Backflow Testers, San Bernardino County certified Backflow testers ready to service your backflow preventers now! Contact Us Now (909) 627-2697 or fill out our Backflow test request form

Our Backflow Testers service Chino, Ontario Claremont, Montclair, Rancho Cucamonga, Pomona, Covina, San Dimas, Glendora, La Verne, West Covina, City of Industry, Irwindale, Walnut, Rowland Heights and neighboring areas, portions of Imperial County & SW Arizona.

Click Here to Learn more about backflow prevention devices.

We have been testing, installing, repairing, & replacing backflow prevention devices for over 50 years! Whether you have one device or many, we can take care of them for you! We are currently Certified in Los Angeles & San Bernardino Counties.

If the backflow can be repaired we will repair it, "not just fail the test & replace it". In most cases they can be repaired. We have the experience to do so.

Key Benefits:
  • Over 50 years of experience to Repair & Troubleshoot your Backflow Prevention Devices
  • We keep copies of your test reports for up to 3 years just in case the water dept/health dept needs to see copies!
  • Whether you have over fifty valves or one, we can take care of them for you!
  • Backflow testing devices for airlines, schools, apartments, hospitals, Medical Buildings, mobile home parks, and homeowners, just to name a few of our customers.
Standard Testing Fees inside service area:
Testing includes filling out test report, sending original to requester, send copy to customer, hold copy in our archives.



Chino, Chino Hills & South Ontario backflow $pecial..........................$40.00 COD
restrictions apply click here for more info


Cost to Test 3 or more devices........................Call for discounted quote

Cost to test one device up to size 4"............................................$60.00

Cost to test one device larger than 4"...........................................$95.00

Cost to test two devices at one location up to 4" ...........................$95.00


Call Now (909) 627-2697
or fill out our Backflow test request form
Pricing based on COD payments
Prices subject to change without notice


Backflow Prevention Device Owners Beware!

Backflow Preventers are being stolen at epidemic proportions! They take the devices down to the local scrap yard for pennies on the dollar! The devices are usually rippped out of the ground destroying the underground piping! Make sure they have to work for it! Pour concrete pads, install cages and paint the devices. Painting them cuts the scrap value in half. It's easy to do yourself, or have us do it.

Contact us or Call (909) 627-2697

Security Cages for Backflow Preventers

DCDA typically used to protect public water supplies from fire sytems Reduced Pressure backflow preventers protecting public water systems at the meter
D & R Plumbing, Inc. PO Box 385 Chino Hills, CA 91709 Contact Us