Covina, CA 91723 Care One Plumbing is your Local Expert source for Backflow Testing and Repairs, We service all Makes and Models of Backflow Prevention Devices. We are Cross Connection Control Experts, we offer Repairs, Replacements, Theft & Vandal Protection, We are Certified in San Bernardino & Los Angeles Counties, and we test for all cities, water districts, new Installations, Residential, and Commercial testers. We serve Covina, West Covina, Azusa, Glendora, and more www.CareOnePlumbing.com 626-969-6933