I am a certified and specialized backflow tester. My goal is to provide the best service I provide. As well as being proficient in backflow testing, I am also experienced in plumbing, heating a wealth of knowledge in the field of backflow testing and repair, and we are dedicated to

Duvall's provides qualified, trained service technicians and certified backflow testers for replacement and repair in all aspects of

member of the Better Business Bureau (BBB) and Certified Backflow Preventer testers, receiving their A+ rating. We are also certified with Columbia Gas, Equitable Gas and Dominion-Peoples.

obtaining a degree in Contractor License Board Certificate, Backflow tester certification from A.W.W.A and A City of Santee. I am also RAYPAK factory certified tech, Gurney man license holder from P.H team of experienced professionals who are all factory certified and licensed, ensuring you get top quality service

. We provide reliable, expert service and are certified backflow installers and testers, all fully insured. Our mission is to