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

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.

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

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